It can be either within one process or a communication between the child a. Experimental results were obtained for 0°, 5°, 10° and 15° inclinations. There are two basic types of electrical circuits; series and parallel. 3 FROM THE HELP WHAT'S New in InfoWater 12. Just to make it more vastly simple I give you one more example: All water radiators are built in a parallel way. Once the PVC pipe is in place, and you have determined it is the appropriate length, install pipe hangers to support the pipe. For the PVC pipe, repeat steps (1) - (3) for the spiral pipe. Q =Q1 + Q2, (b) The loss of head in each pipe is same, i. It only takes a minute to sign up. 51 Re √ f (7) where ε is the roughness of the pipe wall, and Re is the Reynolds number Re = ρVD µ = VD ν. Usually, marginal improvements require heavy investments. Pipeline parallelism If you ran the example job on a system with at least three processors, the stage reading would start on one processor and start filling a pipeline with the data it had read. For example, this diagram here from the manual shows two pipes in parallel, and the essential thing here, the only thing that matters, is that the head at each node point here is the same. Consider a split in the pipes where both pipes are equal in size. We live in a world where multiple physical forces are always at play, Parallel Pipes is an on-demand multi-physics finite element simulation platform that will help engineers test better products and devices throughout. which run parallel and connect at junction (B) further down the gradient. So adding pumps in parallel can increase the flow rate in a piping system, but the amount of that increase depends on the system resistance. Pipes are fundamentally linear and expressing complex relationships with them will only result in complex code that will be hard to read and understand. In such a case (a) The rate of discharge in the main pipe is equal to the sum of discharges in each of the parallel pipes, i. Board-mount light pipes are available in rigid and flexible options. Parallel Pipe Hotfix Description of Problem. Another reason you might use separate conduits is pulling logistics. 5 metres (11. First, an in-pipe parallel manipulator with multi-foot is designed, and its principle and characteristics are explained. One important point to remember about resistors in parallel, is that the total circuit resistance ( R T ) of any two resistors connected together in parallel will always be LESS than the value of the smallest resistor in that combination. Connect with a pair of M6 screw and nut. Purchase SPT-PS-1/4-19 Parallel Tap Series for Pipes General Use SPT from OSG, Factory Automation parts, Die & Mold parts, industrial tools and consumables. What is Parallel Thread Pipe Fittings ? An alternative to tapered threads in pipe joints is the use of parallel threads, similar to the threads of machine screws and bolts. Formulas: a = [(f 2 /f 1)(L 2 /L 1)] 1/2 (D 1 /D 2) 5/2. 6 NEC Requirements for Conductors in Parallel [310. (figuratively) One's vocal capacity. Their conductances are additive. The design uses multiple horizontal pipe segments in parallel for liquid-liquid separation, with inclined outlet pipe segments for increased water holdup and eased water extraction. Parallel Flow Parallel Flow double pipe heat exchangers are focused to handle high pressures and temperatures applications. Flow INTO any junction = Flow OUT of junction 2. (2003) studied the splitting of gas and liquid for four parallel pipes with a common inlet and outlet manifold capable of inclining from 0 to 15°. Re: Pressure in parallel pipes 06/18/2008 9:21 AM Pressure regulators are going to be used in the system for the record, however what I am really trying to calculate is the theory behind the system, neglecting friction and other losses. Thus, the first pump at capacity Q1 develops the same head H as the second pump at capacity Q2. Pipe network can simulate city water system pipe networks, car exhaust manifolds, long pipeline networks with different diameter pipes in series, parallel pipes, groundwater flow into a slotted well screen, soil vapor extraction well design, and more. Impossible Stunt Car Tracks 3D, Moto Bike Tracks, Sky Bus Driving Challenge Gameplay Android and iOS Danila Fox 2,336 watching Live now. Otherwise, unequal water levels could develop in the tower. 3, says: Locate Duplicate Pipes In the Network Review/Fix menu, the Locate Duplicate Pipes command identifies the pipes with identical geometry (i. 1 Answer to Three cast-iron pipes are laid in parallel with these dimensions: Pipe 1: L1 = 800 m d1 = 12 cm Pipe 2: L2 = 600 m d2 = 8 cm Pipe 3: L3 = 900 m d3 = 10 cm The total flow rate is 200 m3/h of water at 20°C. Q 2 = Q/(a + 1). At the same velocity of flow the volume delivered by two pipes of different sizes is proportional to the squares of their diameters; thus one 4" pipe will. to maintain and improve our customer satisfaction by providing hydraulic and pneumatic fittings and. 9 out of 5 stars 3. 5 and exit loss kL=1. Communication can also be multi-level such as communication between the parent. However they all have different diameters, but are equal in length. for pricing and availability. Currently, there isn't a way to partition or dedicate parallel job capacity to a specific project or agent pool. This feature is a great new tool for parallelizing work, but like any tool, it has its uses and drawbacks. Calculate valve coefficient, ky due to head loss of valve application. Pipes & Pumps in Parallel. catalog including Item #,Fitting Size,Body Material,Crack Pressure,Seal Material,Temperature,CAD Call: 864. Installation & Service Manual PARALLEL COMPRESSORS & ENVIROGUARD Save these Instructions for Future Reference!! These refrigerator systems conform to the Commercial Refrigeration Manufacturers Association Health and Sanitation standard CRS-S1-86. Widely applied in the production line system of marking machine, printing machine, digital camera, projector, computer, goods shelves, etc. Get directions, reviews and information for Forterra Pipe in Montgomery, AL. Double Pipe Heat Exchanger Jan. The combined effects of bolt relaxation, (approximately 10% during the first 24 hours after installation), gasket creep, vibration in the system, thermal expansion and elastic interaction during bolt tightening contribute to torque loss. The input and output pipes coming out of a Connecting two parallel pipes too close for a U connection Connecting two pipes in parallel planes Connecting two pipes, in parallel planes, not at the closest point. Notice that BSPP is a pipe thread, but does have parallel threads, so be attentive of which fitting you actually need. threaded pipe (sold separately). Vent stacks can run parallel with waste pipes to ensure proper ventilation in tall buildings. Pipe in series is also called a one pipe system and pipe in parallel is also known as a two pipe s. If you take the "half cylinder" example and do something like:. Fluid mechanics favors an increased flow rate for the end pipes. Add $1,500 USD ($1,875 CAD) in addition to the application fee listed below. ; Add pipe, as explained in Creating a Piping System. Pipes in parallel The filter I have works OK, but it sometimes needs to be changed very often depending on the weather. Flow through pipes in series When pipes of different lengths and different diameters are connected end to end to form a pipe line, such arrangement or connection of pipes will be considered as pipes in. 4 cm and 3 m in length. Lappeenranta, November 18, 2007 Paritosh R. Form Relief Tool Co. The figure shows the intersection of the pipes with the plane equal currents I. The primitive for creating a pipe is the pipe function. It may be possible to simplify supply runs by moving a vent pipe over a few inches. But i could not find any annotation family to make it more easier and faster. 013 Pipe D 10 500 0. lets say pipe1 is carrying the main stream and pipe2 and pipe3 are the parallel pipes with different diameters, then it must be; P1/p + 1/2(V1)^2 = P2/p + 1/2(V2)^2 = P3/p + 1/2(V3)^2 Remember; Q=A*V for different diameters crossectional area difference also changes V (as i know, correct me if i m wrong), so; P2=P3 can not be achieved. In series the outlet at the end can have less pressure than the one at the beginning, and if you open multiple outlets the pressure. The water itself does the rest. A second abstraction in Spark is shared variables that can be used in parallel operations. Get more power and a quiet sound with these X-pipes. PARALLEL PIPE CLAMP. I want to send each line of a file to another program's stdin, e. Excellent for drawing trees and for special effects. So it is not quite the Crown of the Pipe. (Similar to the American NPSM-NPTF connection, however the BSPP swivel female end is commonly found on couplings. For help with Parallel Pipe Clamp from Unistrut; Also known as: 786364156606, UNSP1566EG, Unistrut, P1566 EG, Parallel Run Conduit Clamp, Pipe & Conduit Clamps, Strut - Fittings & Support, Fittings. Table Functions Table functions return a collection type instance and can be queried like a table by calling the function in the FROM clause of a query. The results show that the two phases may not be equally distributed among the pipes. Originally, the size referred to the inside diameter of the pipe at a time when pipes had very thick walls. However, css and js have no relationsh. Parallel Pipe Threads Basic profile, formula and basic dimensions of parallel pipe threads. Proven twist-to-connect design. Parallel pipe system • Consider a main pipe which divide into two or more branches as shown in figure Again join together downstream to form a single pipe then the branch pipes are said to be connected in parallel. 14499 Route. We offer not only the standard clamp designs, but we offer many custom-designed examples for customers with unique installation requests. 5" diameter) to parallel pipe (1. Notice that the top and bottom pipes are larger than the vertical pipes. The multiprocessing package offers both local and remote concurrency, effectively side-stepping the Global Interpreter Lock by using subprocesses instead of threads. All hardware included. As with the male connection, if the centerlines are parallel, the correct angle has been determined. Substation Accessories – AFL’s Dossert line provides aluminum and bronze accessories from 230kv and below, 345kv-500kv and below 765kv as well as bus conductors, bus dampers and compounds for your electric utility substation needs. 000", use a Spring Retainer to secure the light pipe to the panel. nVent reserves the right to change specifications without prior notice. Parallel lines never intersect, and perpendicular lines intersect at a 90 degree angle. But isn't head loss analogous to voltage drop? Parallel resistors have the same voltage drop. In addition, each pipe will experience a different flowrate of fluid going through it. Often the 2nd P is left off because BSPT tapered threads are less common and BSP is assumed to be parallel unless otherwise specified. The Parallel Pipes is an obstacle in ANW: Ninja vs. But you only have 1 pipe to deal with. Wires have negligible resistance, thus they are the widest pipes around. Click to place the parallel pipes. A certain part of the cast iron piping of a water distribution system involves a parallel section. Which of the following sentences is grammatically nonparallel? A. So adding pumps in parallel can increase the flow rate in a piping system, but the amount of that increase depends on the system resistance. AL-4000H. Flow INTO any junction = Flow OUT of junction 2. Made in Germany. Sub- watersheds can be arranged in series form or in parallel; similarly the pipes of the sewer and drainage system can be arranged in series or in parallel form. Three cast iron pipes are laid in parallel with these dimensions The total flow rate is 200 m 3 /h Three cast iron pipes are laid in parallel with these dimensions The total flow rate is 200 m 3 /h of water at 20°C. Flow INTO any junction = Flow OUT of junction 2. Teeing off the one is no problem (the outer one) but other is blocked by the parallel pipe. #parallel() Combines task functions and/or composed operations into larger operations that will be executed simultaneously. , Zinc Plated Includes (1) Stand off Plate, (1) Slotted Hex Head Machine Screw, (1) Square Nut, Load Capacity 400 Lb, Weight 33 Lb per 100 Tell us if something is incorrect. BSPT: British Standard Pipe Taper -also known as "R" or "Rc" threads BSPP: British Standard Pipe Parallel -also known as "G" or "Rp" threads Both styles have the same thread angle, shape, and pitch (threads per inch). Running parallel water pipes from main Quick question to the plumbers out there. Parallel Pipes. Many states have adopted these standards as guidance or regulation. We asked Les Zell, a master plumber, to tell us some of his tips on working with plastic plumbing pipes. Edge Pipe Clamp • Designed to support pipe or rigid conduit perpendicular to the edge of a beam or angle iron • Hardware included • Material: Malleable Iron • Standard finish: HDG B670 Series Parallel Pipe Clamp • Designed to support pipe or rigid conduit parallel to the edge of a beam or angle iron • Hardware included. A nuclear device including a plurality of heat pipes; a first fuel configured to surround respective of the plurality of heat pipes coaxially with respect to a central axis of each of the respective heat pipes, the first fuel containing a fissile material at a first enrichment level; a second fuel configured to directly abut the first fuel on the outside of the first fuel and farther than the. The jaw is much longer, and it remains parallel to the opposite jaw, which is just what you want. Click to place the parallel pipes. org and Plastic Pipe and Fittings Association (PPFA) 800 Roosevelt Road, Bldg. 72 East, Davis Junction, IL 61020 Ph: 815. Extend vertical lines from the point where the lines drawn in #2 intersect the circle to the angle of cut. Add $1,500 USD ($1,875 CAD) in addition to the application fee listed below. The Schenck Process 2-Way 'Y' Valves are available in manual or air-operated platforms and are used in gravity flow systems. Susan is smart, diligent, and a hard worker. Download and install ActivePerl; Open Command Prompt; Type ppm install Parallel-Pipes. parallel twin screw barrel PVC pipe profile sheet parallel screw - ZY screw Products Made In China, China Manufacturer. Just insert the pipe and the stainless steel teeth bite down and grip tight, while a specially formulated O-ring compresses to create a perfect seal. Shop Parallel Pipe Clamp, 1 in. Selecting the proper screw thread is an important criteria in creating a leak-proof seal. Double Pipe Heat Exchanger Design. GNU Parallel is a tool to execute multiple commands at once. Q = A 1 v 1 = A 2 v 2 = A 3 v 3. 21862, 3/4" Parallel Pipe Clamp Item Photo DESCRIPTION MORRIS 21862 - 3/4" Parallel Pipe Clamp PRODUCT FEATURES PAYMENTS SHIPPING SHIPPING Our products usually ship same or next business day. Impossible Stunt Car Tracks 3D, Moto Bike Tracks, Sky Bus Driving Challenge Gameplay Android and iOS Danila Fox 2,336 watching Live now. For example, between the surface of a reservoir and a pipe outlet. Provide a minimum clearance of 12. BSPP - British Standard Pipe Parallel. How to annotate parallel pipes in revit Hi everyone, Please see attachment. 675 P1564 1/2 0. Note also that thermal expansion of pipes will add to total movement in these cases. Re: Pressure in a parallel pipe system 11/08/2006 9:06 AM If the areas of each of the two output pipes are the same as the sourcing pipe, the velocity will clearly halve. skidmoredance. ISO/BSP (parallel) Swagelok RP and RS fittings ISO 228, JIS B0202 ISO/BSP (gauge) (Based on EN 837-1 and 837-3) (Swagelok RG and RJ fittings) ASME B31. This forces you to create an equivalent pipe with the same characteristics. Whenever two pipes are running parallel to each other, piping engineer has to maintain a minimum gap between the two pipes. can anybody help. The figure shows the intersection of the pipes with the plane equal currents I. Loading Unsubscribe from Kenneth Lamb? Fluid Mechanics: Viscous Flow in Pipes, Laminar Pipe Flow Characteristics (16 of 34) - Duration: 57:12. including the two control volumes. Computation of Equivalent Lengths of Parallel Pipe Systems By W. Experimental results were obtained for 0°, 5°, 10° and 15° inclinations. To provide a leak free seal the use of an O-ring, hard metal seal, or soft metal seal in needed. Re: Partiallu Paralell Pipes in profile Forgot to mention Welcome to the AutoDesk Forums Mark! I doubt not being completely parallel has as much to do with the issue as the fact the the alignment makes a 90 deg. But if bigfile is a real (seekable). I am working on a project whereby it is planned to increase the flow of water. Where routing is parallel with hot water or steam pipes , maintain 6 inches minimum clearance from pipe… Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems (Volume I. It has a main thread with a loop that creates a pipe instance and waits for a pipe client to connect. Normally it only needs to be changed about once every 6 weeks but if we're getting a lot of rain and my well is stirred up I may need to change it one of more times a week. There are no imposed limits on the nesting depth of composed operations using series() and parallel(). The perfect mix of synchronization and spontaneity. The actions of these valves, such as the actions of the electromagnetic valve shown in Table 1, are used to drive the four-way valve and the electromagnetic valve between the parallel pipes to reg-. If you need to run a line an the surface of the OD the length of the bit of pipe, lay the pipe on a flat surface, Bump the pipe up against anything that will keep it from rolling and run a scriber set at 4 inch height down the length of the pipe. However, the voltage across the two sections stays the same. Common straight thread fluid power fittings are SAE O-Ring Boss (ORB), British Standard Pipe Parallel (BSPP), or Joint Industry Council (JIC). In the parallel-flow arrangement of Figure 18. It is the policy of Fittings Unlimited, Inc. Pipe C also has a known length and diameter (which is different from the diameter of pipe A/B). So for pipes in parallel, you don't add the head losses, they're the same in each pipe. In a plumbing emergency, it's vital that you quickly close the main shutoff valve. Hi I'm using 4. + dp n (1). Unistrut pipe clamps, unless noted, are punch-press made from hot-rolled, pickled and oiled steel plates, strip or coil, and conform to ASTM specifications A1008, A575, A576, A635, or A36. many a soul may have heard of it but was intimidated by the docs, since the tool does have a lot of options, and the authors did not bother with css. If there is are no filters in the pipe, the water travels a a given speed and when a filter is placed into the pipe, the current remains unchanged, but a stronger force is pushing the water through the filter. 840 P1565 3/4 […]. 5, Hwang 3rd. (figuratively) biceps. Centrifugal pumps in series are used to overcome larger system head loss than. Two pipes are connected in parallel between two points as in figure. Substation Accessories – AFL’s Dossert line provides aluminum and bronze accessories from 230kv and below, 345kv-500kv and below 765kv as well as bus conductors, bus dampers and compounds for your electric utility substation needs. Pipes in parallel The filter I have works OK, but it sometimes needs to be changed very often depending on the weather. A controlled motor capable of maintaining a constant current. Parallel cast iron pipes 1,2, and 3 in Figure below carry a total discharge of 0. including the two control volumes. (a) The inlet pressure versus flow rate for a single pipe with extra resistance 6. You could even push that to six pipes as long as you stack and stagger. There is a reason for this. That means every parallel pipe inlets will install an orifice to overcome the two-phase flow instability. 1 This test method covers the determination of load-deflection characteristics of plastic pipe under parallel-plate loading. Loss of head in each parallel pipe is same. Parallel Processing in Python The cost of sending data across pipes can be higher than you want. Plastic pipe plumbing tips from an expert. With noun/verb tables for the different cases and tenses links to audio pronunciation and relevant forum discussions free vocabulary trainer. To see why, think about the pressures in the pipes on each side of the boiler. A soil pipe from a toilet in a 1930s cavity wall brick house cannot go directly out the wall as it would go out under the kitchen roof. Limit gauges for parallel pipe thread (PF) are used for inspecting the dimension of such the threads. PARALLEL FLOW DYNAMICS. Items not in stock usually ship 3-5 days, feel free to contact us to check if your items are in stock. Pipes in Parallel: 1) 0. (hope I'm explaining this ok). 0:00:39 - Pipes in parallel, conservation of mass and conservation of energy equations 0:09:35 - Example: Pipes in parallel 0:24:03 - Branching Pipes, conser. method for two compressors in parallel by connecting the discharge pipe of the first compressor to the high pressure chamber of the second compressor, and connecting the discharge pipe of the second compressor to the oil separator. This clamp is limited only by the length of the pipe you supply. Q 2 = Q/(a + 1). A hoisting Winch, sited. Inter Process Communication - Pipes - Pipe is a communication medium between two or more related or interrelated processes. Notice that the top and bottom pipes are larger than the vertical pipes. The perfect mix of synchronization and spontaneity. But what about the total head loss for the parallel pipes as a whole? I have 3 ideas, but I'm not sure which would be correct: 1) Treating the head losses the same way as electrical resistance, where 1/R=1/R1 + 1/R2 but with head losses instead of resistance?. Pipes in Parallel - Exercise 1 A pipe joins two reservoirs whose head difference is 10m. Pipe threads used for liquid joints can be divided into two types: Jointing threads: These are pipe threads where pressure-tightness is. At constant flow rate, the lower the inlet pressure, the greater the loss per foot of pipe. Parallel vs. In its basic usage, you would list your commands in a file, so that it can execute them, several at a time. It is the policy of Fittings Unlimited, Inc. ISO pipe threads, when specified, are assumed to be parallel unless a taper thread is called out. 51 Re √ f (7) where ε is the roughness of the pipe wall, and Re is the Reynolds number Re = ρVD µ = VD ν. Pipes are said to be in parallel when they are so connected that the flow from a pipe branches or divides into two or more separate pipes and then reunite into a single pipe. What is the pressure difference between the pipes? Take the density of seawater to be. FIG AS 3138 AS 3138 Parallel Pipe Clamp Description Anvil-Strut Pipe Clamps are all manufactured to fit into the standard openings of 1-5/8" channel to support runs of piping where desired, to secure the pipe in place. Oil and natural gas are transported hundreds of miles by large pipelines. Today you will find links to a list of smaller C++17 features, a free book about Intel TBB and parallel programming, why Dropbox is moving away. As in our own bodies, where the veins and arteries move blood through the pumping. It featured 5 thinner pipes, a trampoline at the starting platform, and a trapeze swing to reach the first pipe. If two straight pipes have the same distance between them over their lengths, they are parallel. A classic, and simple, problem in viscous, laminar flow involves the steady-state velocity and pressure distributions for a fluid moving laterally between two plates whose length and width is much greater than the distance separating them. Parallel gives uniform pressure but requires a lot more piping. Allows 2 pipelines to be installed in parallel. PARALLEL PIPE CLAMP. In its basic usage, you would list your commands in a file, so that it can execute them, several at a time. Parallel processing is all around nowadays. Parallel gives uniform pressure but requires a lot more piping. 05/31/2018; 5 minutes to read; In this article. Flow INTO any junction = Flow OUT of junction 2. The first pipeline system comprises standard (rough) transitions and fittings (Figure 2. Prepare the 10 foot section of PVC for cutting by cleaning and drying. Thus, the first pump at capacity Q1 develops the same head H as the second pump at capacity Q2. Ojiyas Parallel Pipe Threads (PF) specified in JIS are used to connect fluid equipments, plumbing parts, pipes where density resistance is unnecessary in their mechanical connection. The flow of water through the center tube can be reversed for either countercurrent or parallel flow. Flow through pipes in parallel When pipes of same lengths and different diameters are connected separately in order to increase the discharge, such arrangement or connection of pipes will be considered as pipes in parallel. Both of pipes have same friction factor of 0. The following example is a multithreaded pipe server. The combined effects of bolt relaxation, (approximately 10% during the first 24 hours after installation), gasket creep, vibration in the system, thermal expansion and elastic interaction during bolt tightening contribute to torque loss. The motivation for reducing groups of parallel pipes to single equivalent. 72 East, Davis Junction, IL 61020 Ph: 815. Find the place where the bend in the pipe starts. (where, L = L 1 + L 2 + L 3). 25" - part of the Milos QuickTruss System. --Satyanarayan Gangaram Pitroda. The pipes are constructed of Plexiglas which allows to observe the flow patterns in the pipes. Click to place the parallel pipes. 2 m diameter, 1000m in length and has a f value of 0. Sharing of parallel jobs across projects in a collection. There are two basic types of electrical circuits; series and parallel. Cutters are heat treated for toughness and durability. I have a feeling it is very much like putting resisters in parallel in an electronic circuit. What is the pressure difference between the pipes? Take the density of seawater to be. We can help with challenging projects that require complex system solutions for thermal sensitive compounds to complex shapes or precision extrusions. The manometers for this pipe have water in them and all have the same pressure at the top, so the differences in the manometer readings directly give the change in piezometric head from one piezometer tap to the next. PIPE NETWORKS THREE MAIN RULES 1. Cast-iron sewer pipe, like clay pipe, is associated with older homes, yet it is still installed today. To finish the parallel piping run, click Modify. I was about to “pass” on this as an obscure question not referring to the main subject when it came to me that this is quite probably about heating. A partially closed valve at pipe A causes the discharge in two pipes are equal. Q = A 1 v 1 = A 2 v 2 = A 3 v 3. Price Ranges. A set of valves is provided to conduct the experiment. Note: Calculations are possible only, if Javascript is activated in your browser. Pipes In Parallel Kenneth Lamb. the same applies to resistors in PARALLEL. Next, to demonstrate parallel test execution, we'll use a test suite with two test classes each having a few methods. Flow in each pipe follows pipe friction laws of fluid flow in a single pipe. SharkBite Push-to-Connect Straight coupling is the easiest way to join copper, CPVC or PEX pipe in any combination with no soldering, clamps, unions or glue. Ensure resulting movement of randomly installed systems is not harmful to joints at changes in directions or branch con-nections or to parts of structure or other equipment. It calculates fluid flow in open or closed loop pipe networks with multiple supply & discharge tanks, multiple pumps in series or in parallel, and multiple pipe sizes & fittings. Chapters 1-5) The glass test section is supported on the unistrut main rail by specially constructed maple wood blocks. This eases the strain on the joints that could lead to possible leakage. Their conductances are additive. Another reason you might use separate conduits is pulling logistics. Circular shape is the prefer form for sewer system design. We now know that the parallel pipes in the middle of the network can be represented by a single, 8-in diameter pipe that is 1800 ft long and has a CHW of 100. To check the angle of your pipe, lay it against a carpenter's square with the outer bend facing the corner of the square. SINCLAIR Clamp kit containing quantity (2) CLAMP005. zone 2: 75 feet equiv. Estimate reasonable values of f for each pipe: you might use the. Spec-Driven Piping allows you to automatically stagger the parallel pipe cuts when the joint fittings on a cut interfere with the joint fittings. Parallel and Counter Flow Designs Heat Exchangers - Although ordinary heat exchangers may be extremely different in design and construction and may be of the single- or two-phase type, their modes of operation and effectiveness are largely determined by the direction of the fluid flow within the exchanger. pipe each line as stdin to the more command). For example, 'A' can paint a room in 5 hours and 'B' can paint a room in 6 hours. Running parallel water pipes from main Quick question to the plumbers out there. Parallel Pipes. On the Properties palette, under Justification, specify the horizontal and vertical offsets:. British Standard Pipe Parallel listed as BSPP. (a) The rate of discharge in the main pipe is equal to the sum of discharges in each of the parallel pipes, i. DOF of most common mechanism in in-pipe robots can be calculated by considering the robot as a parallel manipulator. The parallel function requires more memory than the sequential one. Because of this the total flowrate of the system of pipe will be a product the individual flow rates. Minimum spacing between pipes may be satisfied by the following (see Table 6-2): Depending on the type of backfill, the compaction equipment and joining methods, these dimensions may need to be increased. 4 below: Now, both the loops are analysed for Hardy Cross method procedure in Table 20. h L (0,1) = f 1 (L 1 /D 1) V 1 2 /(2g). As you can see the pipes are parallel, and the flow is unidirectional, that is from A to B. Feature long actuator life and spring assist for higher grip force and part retention upon loss of air pressure. Two pipes are connected in parallel between two points as in figure. Both parallel pipes have a diameter of 30 cm, and the flow is fully turbulent. , on the top of each other) and displays the duplicate pipe ids in the Message Board. To create a simple pipe with C, we make use of the pipe() system call. Homemade versions or parallel bars are easy to make, economical, durable and functional. Here is an image I found that hopefully explains it better. It has been adopted as standard in plumbing and pipe fitting, except in North America, where NPT and related threads are used. Determine the flowrate in each pipe. Where the parallel clamps are more expensive, they do have slightly more to offer than the pipe clamps available from Stauff Anglia's collection. 000", use a Spring Retainer to secure the light pipe to the panel. Series 190/191 Parallel Grippers are ideal for handling small parts in confined areas. These threads have a 55° included angle and have rounded peaks and valleys (this is a Whitworth thread form). The manometers for this pipe have water in them and all have the same pressure at the top, so the differences in the manometer readings directly give the change in piezometric head from one piezometer tap to the next. txt line1 line2 line3 I want to use the gnu parallel like this (i. resumable batch jobs with gnu parallel. Parallel cast iron pipes 1,2, and 3 in Figure below carry a total discharge of 0. Multiple box culverts are defined as those with more than one barrel and a total opening (i. For LPC and LPCR light pipes that are between. with a "Y-joint") I would run them in series. the same applies to resistors in PARALLEL. Example 1: (p. And the flow rate's squared. NPP - National Pipe Parallel. Pipe & Base Pipe & Base 2. Galvanised branch pipes used to join vacuum pipes together. Pipes are fundamentally linear and expressing complex relationships with them will only result in complex code that will be hard to read and understand. Chlorine Dioxide Degradation Issues on Metal and Plastic Water Pipes Tested in Parallel in a Semi-Closed System. 1/8-3" General Terms and Conditions. However they all have different diameters, but are equal in length. In calculi of communicating processes (like pi-calculus), the vertical bar is used to indicate that processes execute in parallel. Verify that the AutoCAD MEP toolset pipe snaps are turned on, and turn off (Object Snap) and (Object Snap Tracking) on the application status bar. Previous Page. the same applies to resistors in PARALLEL. PIPELINE CROSSING/PARALLEL ENCROACHMENT UNDER/OVER PROPERTIES AND TRACKS. The governing mechanisms for the flow in multiple pipe systems are the same as for the single pip e systems discussed in earlier lec-tures (n5,n6). , on the top of each other) and displays the duplicate pipe ids in the Message Board. Another reason you might use separate conduits is pulling logistics. You could even push that to six pipes as long as you stack and stagger. ALASTAL Experiment (10): Series and parallel pumps Introduction: Centrifugal pumps are often used together to enhance either the flow rate or the delivery pressure beyond that available from the single pump. Parallel Plates. Pipes - in Series or Parallel - Pressure loss in pipes connected in series or parallel Positive Displacement Pumps - Introduction tutorial to positive displacement pumps basic operating principles Pumping Water - Energy Cost Calculator - The energy costs of pumping water. multiprocessing. Competitors would have to use a ring (similar to the one used on the first half of the Ring Swing) to swing out to two pipes that were parallel to each other and use them to swing to the landing platform. Learn how to identify parallel and perpendicular lines. Clamp Sets Pipe to Pipe Clamp Sets Used for attaching similar sized pipes in parallel orientation. 'parallel query dequeue wait', 'parallel query idle wait - Slaves', 'pipe get', 'PL/SQL lock timer', 'slave wait', 'virtual circuit status', 'WMON goes to sleep' ) order by 4 desc; Here is the output from this script. With the larger pipes, a second parallel pump installation increases the flow rate from 98. To optimize operations of production-grade AI workflow platforms we can leverage existing scheduling approaches, yet it is challenging to fine-tune operational strategies. Therefore, if it is adopted, sanctions for insurance of Nord Stream 2 pipe-laying vessels or for the refurbishment of ships will threaten only those companies that continued to provide these services as of the date of the bill's adoption. Both of pipes have same friction factor of 0. BSP Die Nut (3/4" x 14 TPI) PARALLEL Pipe - Excellent Thread Cleaner. Pipe joint compound, also known as pipe dope, is a type of sealant used with any threaded pipe to help create a seal. For example, 'A' can paint a room in 5 hours and 'B' can paint a room in 6 hours. ALASTAL Experiment (10): Series and parallel pumps Introduction: Centrifugal pumps are often used together to enhance either the flow rate or the delivery pressure beyond that available from the single pump. To draw a parallel pipe run using offsets. Gnu parallel & pipe. One of the branches. 000", use a Spring Retainer to secure the light pipe to the panel. Q 1 = aQ/(a + 1). British Parallel Pipe O-Ring: British Parallel Pipe Retainer Washer: 714MP plugs: What is the "(+. 05/31/2018; 5 minutes to read; In this article. The hot and cold water pipes often parallel each other. 1) British Standard Pipe Parallel (BSPP) British Pipe Standard fittings are among the most popular of all foreign threads. PowerShell 7. Standard Reamer Length High Speed Steel Straight Shank British Standard Parallel Pipe (8) BSPP Cutters will ream and chamfer in one pass in a pre-drilled or pre-cast hole for a parallel pipe thread. Parallel Pipes. Black pipe is the preferred bar stock for pipe clamps and it will leave black marks on wood if water-based glues are used. 51 Re √ f (7) where ε is the roughness of the pipe wall, and Re is the Reynolds number Re = ρVD µ = VD ν. With noun/verb tables for the different cases and tenses links to audio pronunciation and relevant forum discussions free vocabulary trainer. Home > British and Metric > British Standard Pipe Parallel (BSPP) Sort By: Price: Low to High Price: High to Low Most Popular Title Manufacturer Newest Oldest Availability 40 per page 80 per page 160 per page 240 per page 400 per page Page of 1. DOF of most common mechanism in in-pipe robots can be calculated by considering the robot as a parallel manipulator. Torque loss. To check the angle of your pipe, lay it against a carpenter's square with the outer bend facing the corner of the square. However, I now need to connect the 3" PVC pipe that exits our foundation, to the 4" ABS pipe that drains into the septic tank. Automated, operationalized pipelines that manage the AI application lifecycle will form a significant part of tomorrow's infrastructure workloads. is a right angle and would make a standard 'T' joint. Five parallel pipes of infinite length in the plane from the other. Otherwise, when a pipe bursts, it can flood your house in no time. Excellent for drawing trees and for special effects. Substation Accessories – AFL’s Dossert line provides aluminum and bronze accessories from 230kv and below, 345kv-500kv and below 765kv as well as bus conductors, bus dampers and compounds for your electric utility substation needs. Thermal resistance networks are commonly employed in order to analyse steady state heat transfer. Parallel Jaw Clamp Features: Precise 90° angle and delivers powerful clamping force - up to 1,150 lbs. Q 2 = Q/(a + 1). 013 Pipe D 10 500 0. Instead of running them in parallel (i. And for pressure continuity at point B, the frictional head loss between A and B in both pipes must be equal, so: Numerical Example. Q=A1V1=A2V2=A3V3 – The difference in liquid surface levels is equal to the sum of the total head loss in the pipes 31. Vises have two parallel jaws, one fixed and the other movable, threaded in and out by a screw and lever. Item: #552512. 05/31/2018; 5 minutes to read; In this article. If two straight pipes have the same distance between them over their lengths, they are parallel. Loading Unsubscribe from Kenneth Lamb? Fluid Mechanics: Viscous Flow in Pipes, Laminar Pipe Flow Characteristics (16 of 34) - Duration: 57:12. Longscrew threads. If you take the "half cylinder" example and do something like:. This pipe clamp is designed for use with 1/2 in. This is the out-of-the-box option. We live in a world where multiple physical forces are always at play, Parallel Pipes is an on-demand multi. Since parallel threads are incapable of forming a pressure-tight seal on their own, the sealing action of a parallel thread pipe fitting must be achieved some other way. TABLE OF CONTENTS. Rectangular Ducts. PIPE - Parallel Image Processing Environment, All Acronyms, viewed February 9, 2020,. GNU Parallel is a tool to execute multiple commands at once. Flow through pipes in parallel When pipes of same lengths and different diameters are connected separately in order to increase the discharge, such arrangement or connection of pipes will be considered as pipes in parallel. This version is usable for browsers without Javascript also. basins, which, in the extreme, could cause one tower to overflow while air is being drawn. To check the angle of your pipe, lay it against a carpenter's square with the outer bend facing the corner of the square. --Satyanarayan Gangaram Pitroda. BRITISH PIPE PARALLEL (BSPP) BSPP(British Standard Pipe Parallel) The seal is established through the seats on both the male and female halves. I have a water and sewer line that run parallel for the most part. Selecting the proper screw thread is an important criteria in creating a leak-proof seal. PARALLEL FLOW DYNAMICS. Pipes are fundamentally linear and expressing complex relationships with them will only result in complex code that will be hard to read and understand. IRWIN 1/2-in Pipe Clamp. This eases the strain on the joints that could lead to possible leakage. Two pipes are connected in parallel between two points as in figure. Parallel Pipe System - Sizing Problem - posted in Student: Hi I am trying to solve a parallel piping system (sizing problem). Verify that the AutoCAD MEP toolset pipe snaps are turned on, and turn off (Object Snap) and (Object Snap Tracking) on the application status bar. Pipe 1 has diameter 50mm and length 100m. Hope this helps. Two pipes are connected in parallel between two points as in figure. In parallel, resistors add slightly differently. If pipes are connected in series, a very blocked pipe means a very small water flow, even if other less-blocked pipes are connected in line with it. If one of the pipes is larger then it will have a higher flow and the smaller pipe will have less flow. Aeroflow 3/8" Bspp To -8AN Washer Seal British Std Pipe Parallel. BSPP(British Standard Pipe Parallel) The seal is established through the seats on both the male and female halves. When two (or more) pumps are arranged in serial their resulting pump performance curve is obtained by adding their heads at the same flow rate as indicated in the figure below. Ninja, it had the first half of Oklahoma City's Ring Swing. Series- Piping the outlet of one heater into the inlet of the next. 013 Pipe B 18 400 0. • If pipe is in horizontal plane, the lettering will appear as if it is lying down and will be oriented on both 30° angles. Howland and F. Pipe Flow Expert Software - Used by Engineers in over 100 Countries Worldwide. 4 cm and 3 m in length. But you only have 1 pipe to deal with. Parallel sets up two pipes to enable bi-directional communication. water flow through each tower. Consider a split in the pipes where both pipes are equal in size. Next Page. Equivalent Pipe: A compound pipe which consists of several pipes of different lengths and diameters to be replaced by a pipe having uniform diameter and the same length as that of compound pipe is called as equivalent pipe. These threads come in 2 versions: parallel (BSPP), and tapered (BSPT). 9002 ADAPTERS - MALE JIC X MALE BSPP. THREADED SCREWED BOTH ENDS, THREADED BSPP PARALLEL THREADS. STAINLESS STEEL 316 GRADE PIPE THREADED BOTH ENDS. Determine (a) the flow rate in each pipe and (b) the pressure drop across the. Series- Piping the outlet of one heater into the inlet of the next. Parallel::Pipes - parallel processing using pipe(2) for communication and synchronization. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. 1) British Standard Pipe Parallel (BSPP) British Pipe Standard fittings are among the most popular of all foreign threads. With pumps in parallel, the flow rates are additive with a common head. Pipes that are in parallel will experience the same pressure loss across each pipe. 5 gpm, a much more significant increase than with the smaller pipelines. Pipes that are in parallel will experience the same pressure loss across each pipe. Parallel 250's = 510 A in separate conduits, or 464 A in the same conduit. The principle is relatively simple: each GfsBox can take a pid argument which defines the rank of the process on which the solution for this GfsBox will be computed. 3, says: Locate Duplicate Pipes In the Network Review/Fix menu, the Locate Duplicate Pipes command identifies the pipes with identical geometry (i. In our example above, the value of the combination was calculated as: R T = 15kΩ, where as the value of the smallest resistor is 22kΩ, much higher. and the other of ½” dia. h L (0,1) = f 1 (L 1 /D 1) V 1 2 /(2g). Viewed 2k times 1. Hi, This question was already debated too much times in thsi forum, but i still doesn't understand one thing that questions all that i've learned until now. Determine the flowrate in each pipe. Both parallel pipes have a diameter of 30 cm, and the flow is fully turbulent. Chapter 3 Flow Analysis 3. Equivalent Hydraulic Pipe for Parallel Pipes. Some operating systems, including Linux, Windows NT and Windows 2000, automatically detect the ports at boot time. Pipes Data + flow = 10 Pipe A 12 300 0. run in parallel [250. IF YOU REQUIRE IT TO BE THREADED ONE END OR PLAIN END, LET US KNOW. Hi all, I'd like to ask about the pressure in parallel pipe system: when a single pipe with diameter D1 and flow rate Q1 branch into two pipe with diameter D2 & D3 and the same length, their flow rate are Q2 & Q3, bellow statement are true or not? : Q1 = Q2 + Q3; ( i believe this relation. Two pipes are connected in parallel between two points as in figure. To finish the parallel piping run, click Modify. Important details like suction diffusers and isolation valves are not shown. Experimental results were obtained for 0°, 5°, 10° and 15° inclinations. L = length of pipe (same) V= velocity of flow (same) d = dia of pipe is same. Pipe Carrying Capacities It is frequently desired to know what quantity of pipes of a given size are equal in carrying capacity to one pipe of a larger size. 5, Hwang 3rd. 2 m diameter, 1000m in length and has a f value of 0. Pipes in Parallel: Pipes in parallel are pipes with different diameters and same lengths, where each pipe is connected separately to increase the discharge. And for pressure continuity at point B, the frictional head loss between A and B in both pipes must be equal, so: Numerical Example. Since we can't see electrons, it would be nice to have a model or an analogy of electric circuits to help us understand circuits better. Two pipes in parallel with the same diameter and pressure will handle the same flow rate. Pipes - in Series or Parallel - Pressure loss in pipes connected in series or parallel Positive Displacement Pumps - Introduction tutorial to positive displacement pumps basic operating principles Pumping Water - Energy Cost Calculator - The energy costs of pumping water. Note: Calculations are possible only, if Javascript is activated in your browser. With this program, however, you can create parallel pipes by drawing the pipes with the same end nodes. Pipes --version 1. Parallel jobs are purchased at the organization level, and they are shared by all projects in an organization. Thread Identification Guide. Usually there is a pipe rack running in the center of the plant which carries all the pipes from various sources to destinations alongwith cable trays, instrumentation ducts etc. Pipe in series is also called a one pipe system and pipe in parallel is also known as a two pipe s. (hope I'm explaining this ok). Parallel Pipe Threads Basic profile, formula and basic dimensions of parallel pipe threads. Same thing with electricity. For a female connection, insert the gauge into the connection and place it on the sealing surface. Twin Screw and Cylinder, Parallel twin Screw Cylinder, Twin parallel Screw Cylinder in full specifications. The flowrate Qt is split between the inlet into Q1 and Q2. The design uses multiple horizontal pipe segments in parallel for liquid-liquid separation, with inclined outlet pipe segments for increased water holdup and eased water extraction. underground pipe. 312 Glen Ellyn, IL 60137 www. Tool Centre is your one stop online shop for all hardware and tools. Where routing is parallel with hot water or steam pipes , maintain 6 inches minimum clearance from pipe… Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems (Volume I. The abbreviation for Parallel Image Processing Environment is PIPE. For example, between the surface of a reservoir and a pipe outlet. View Answer. #parallel() Combines task functions and/or composed operations into larger operations that will be executed simultaneously. Velocity distribution of Laminar Flow in pipe: In the case of axial symmetry, when cylindrical coordinates are used , the momentum equation become as following : ----- (1) ----- (2) For the case of a parallel flow like this, the Navier-Stokes equation is extremely simple as follows: 1. PIPE NETWORKS THREE MAIN RULES 1. 1 Pipes in Series and in Parallel 1 2 Three-reservoir problem 3 1 Pipes in Series and in Parallel In many pipe systems there is more than one pipe involved. Tool Centre is your one stop online shop for all hardware and tools. A partially closed valve at pipe A causes the discharge in two pipes are equal. Data written to the pipe by one process can be read by another process. In other words, the radiators are installed in parallel. Obviously when the pipes are in parallel, the head losses across them are the same. Algebraic sum of losses around any closed loop must be zero. It is especially useful in improving upper-body strength. Parallel Pipes | 37 followers on LinkedIn | AI-guided Product Development on the cloud | Electromagnetic, Electronics, Thermal, Mechanical & Fluid Dynamics Simulation On-demand. Entering the data for this example: The join angle defines angle at which the branch pipe joins the main pipe. There are no imposed limits on the nesting depth of composed operations using series() and parallel(). Both ends of the pipe should just touch the square's sides and run parallel to them. A nuclear device including a plurality of heat pipes; a first fuel configured to surround respective of the plurality of heat pipes coaxially with respect to a central axis of each of the respective heat pipes, the first fuel containing a fissile material at a first enrichment level; a second fuel configured to directly abut the first fuel on the outside of the first fuel and farther than the. For many commands this fact is functionally inconsequential, but sometimes it matters. Public project: 10 free Microsoft-hosted parallel jobs that can run for up to 360 minutes (6 hours. Flow through pipes in parallel When pipes of same lengths and different diameters are connected separately in order to increase the discharge, such arrangement or connection of pipes will be considered as pipes in parallel. In parallel pipe problems, the. EMA test points are typically permanently plumbed into a fluid system at locations where pressure measurements are required for maintenance or testing. This includes but not limited to storm drains, culverts, waste and sewer systems consisting of all pipe types including all metallic and non-metallic materials. A bit easier with parallel clamps, but no functional difference. IRWIN 3/4-in Pipe Clamp. (Eq 3)  $Q=Q_1+Q_2···Q_n$. For instance, you can find clamps for pipe fastenings for a wide range of applications such as refrigeration clamps or screw-on pipe clamps and a lot more. , studies find the coronavirus can deplete vital immune cells. Calculate valve coefficient, ky due to head loss of valve application. Another reason you might use separate conduits is pulling logistics. parallel will read 1 megabyte of data (give or take the length of a line) from its standard input and feed those chunks to alternating sorts. All three valves are wide open (Kgate = 0. Components in a circuit can be connected in series or in parallel. One important point to remember about resistors in parallel, is that the total circuit resistance ( R T ) of any two resistors connected together in parallel will always be LESS than the value of the smallest resistor in that combination. Both of pipes have same friction factor of 0. The simplest heat exchanger is one for which the hot and cold fluids move in the same or opposite directions in a concentric tube (or double-pipe) construction. Now we will go ahead to see the, flow through pipes in series and parallel, in the subject of fluid mechanics, with the help of this post. 1 Introduction Pipes and ducts are the veins and arteries of mechanical systems such as a power-plants, refineries, or HVAC systems. Pipe A and B have a known and identical length and diameter, and are in parallel. Determine (a) the flow rate in each pipe; and (b) the pressure drop across the system. Parallel Dynamics supplies Seamless / Welded Steel Pipes, Iron Pipes, Galvanized Pipe, Piping System in Ductile Iron, carbon steel, stainless steel, alloy steel, etc. Pipe in series is also called a one pipe system and pipe in parallel is also known as a two pipe s. Modeling Parallel Pipes With some water distribution models, parallel pipes are not allowed. Generally, aughts are easy to parallel in the same pipe, and high kcmil are difficult. • As the process pressure rises it will overcome the upstream disc spring force and push the disc away from the seat thereby permitting process pressure into the body cavity. Drain and vent lines must be positioned precisely, so you should install them before the supply pipes. What plastic pipe is dimensioned differently than the iron pipe standards? Everything I looked up is either in IPS or CIOD ODs. Minimum spacing between pipes may be satisfied by the following (see Table 6-2): Depending on the type of backfill, the compaction equipment and joining methods, these dimensions may need to be. ParentRunner. Experiments. SINCLAIR Clamp kit containing quantity (2) CLAMP005. Description: Feature double port pipe clamp, it used to connect lean tubes parallelly to construct various position apparatus. A classic, and simple, problem in viscous, laminar flow involves the steady-state velocity and pressure distributions for a fluid moving laterally between two plates whose length and width is much greater than the distance separating them. I pipes are connected successively, the system is in _ whereas if the pipes cause the flow to divide into different branches the system is in series, parallel When two pipes are in parallel, the headloss through each pipe is. Pipes - in Series or Parallel - Pressure loss in pipes connected in series or parallel Positive Displacement Pumps - Introduction tutorial to positive displacement pumps basic operating principles Pumping Water - Energy Cost Calculator - The energy costs of pumping water. due to friction in each pipe. Technical Information Base Materials: Stainless Technics: Heat treatment High-frequency quenching Nitriding treatment Hard-chrome electroplating Bimetallic alloy welding. If you must run drainpipes across a floor, carefully calculate the amount of vertical space available; you must slope the drainpipe at 1/8 to 1/4 inch drop per. Using parallel DEGREE settings on the underlying objects; Forcing parallel (ALTER SESSION FORCE PARALLEL QUERY PARALLEL n) Parallel query/DML is a feature of Oracle Database Enterprise Edition. Kit includes 2 Clamp Sets. Matthew Anderson, PE. For a flow that is running in parallel each pipe will have different flow rate. Hi all, I'd like to ask about the pressure in parallel pipe system: when a single pipe with diameter D1 and flow rate Q1 branch into two pipe with diameter D2 & D3 and the same length, their flow rate are Q2 & Q3, bellow statement are true or not? : Q1 = Q2 + Q3; ( i believe this relation. Search nearly 14 million words and phrases in more than 470 language pairs. Is there a formula?. Next, select Add a parallel branch and what you'd like to add (in this case, just Add an action). Unistrut pipe clamps, unless noted, are punch-press made from hot-rolled, pickled and oiled steel plates, strip or coil, and conform to ASTM specifications A1008, A575, A576, A635, or A36. GNU parallel's --pipe maxes out at around 100 MB/s because every byte has to be copied through GNU parallel. I haven't really worked too much with parallel pipes in practice so I don't have the bugs and workflow worked out, but I really wouldn't want to go back and forth too many times with parallel pipes as reimporting would likely wipeout any currently dual or parallel imported pipes causing a bit of additional editing in Civil 3d. With the larger pipes, a second parallel pump installation increases the flow rate from 98. 008 (a) What is the flow in the pipeline? (b) It is required to increase the flow to the downstream reservoir by 30%. Series Installation. We live in a world where multiple physical forces are always at play, Parallel Pipes is an on-demand multi. In a series circuit, the path of electrons from the negative (-) side to the positive (+) side goes through all the electrical components of the circuit. Because of this the total flowrate of the system of pipe will be a product the individual flow rates. Active 6 years, 5 months ago. IRWIN 3/4-in Pipe Clamp. In its basic usage, you would list your commands in a file, so that it can execute them, several at a time. Water is driven by a centrifugal pump through an horizontal pipe to the single phase cylindrical header, that is connected to 4 branches; the first one is linked directly with the water tank, whereas the others are disposed in symmetrical way. The basic approach to all piping systems is to write the Bernoulli equation between two points, connected by a streamline, where the conditions are known. ALASTAL Experiment (10): Series and parallel pumps Introduction: Centrifugal pumps are often used together to enhance either the flow rate or the delivery pressure beyond that available from the single pump. parallel --pipe --files sort As I understand it, this will spawn one instance of sort per cpu.