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Q: How Many GPM will flow through a 8 pipe at 5 psi?
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The gpm through 2inch water pipe?

Under 400 GPM at best (without friction)


What would happen if you connect large sewer pressure pipe to a small pressure pipe?

Nothing as long as the pressure pipe is not used for potable water as you cannot make a direct connection and depending on the GPM flow what size the larger sewer pipe is as 1 GPM (pumping) is considered 1 fixture unit when sizing the drainage system ALSO make sure the pumps system enters at a right angle 45 deg so your not eroding the side of the larger pipe out


What size pipe is needed for 350 GPM?

That would depend on the pressure huh?


Why are variable frequency drives used for secondary chilled water pumps?

In a chilled water system, the chillers are happiest with a constant-volume flow. In a primary-secondary loop system, the chiller has a primary pump that is constant-speed. If that were the only pump, and it circulated chilled water through the chiller and the load (air handler, etc.), imagine what would happen as the temperature setpoint was reached. The control valve starts to close, reducing the flow. This deadheads the pump, which is bad in itself, but it also reduces flow through the chiller. The chiller could be damaged, or it would trip on a low flow safety, or at the very least it operates poorly, or inefficiently. You could change the control valve to a three-way diverting valve. Now instead of closing, upon reaching setpoint the valve diverts some of the flow, bypassing the load, and recirculates it back to the chiller. This maintains full flow through the system, but it wastes energy because you are always pumping full-load flow even in the dead of winter when you may only need a fraction of the system's capacity. What if there was a way to maintain a constant flow through the chiller, yet only supply just the needed flow to the building? Well, let's change the control valve(s) back to standard 2-way, and add a secondary pump with VFD. We will also need a pressure sensor on the secondary loop. We add a bypass pipe between the two pumps. Can you visualize the piping? Water leaves the primary pump, goes through the chiller, heads out on the CHW supply line. Then it can either circulate through the bypass line and back to the pump (that's the primary loop), or keep on going out to the building, then back from the building, through the secondary pump, past the bypass line, and to the suction on the primary pump. The beauty of the primary-secondary system is we can reduce secondary flow to the building as the cooling load reduces. As the control valve(s) close, the pressure in the secondary loop rises. The pressure sensor detects this and slows the pump down to maintain a constant pressure. As less and less water flows from the chiller out to the building, more and more of the primary flow goes through the bypass pipe, maintaining constant GPM through the chiller. You save money several ways. It takes horsepower ($) to overcome pumping friction losses as you move all that water through the hundreds or even thousands of feet of building piping. Reducing the secondary flow saves energy. Two-way valves are cheaper, less complex, and easier (cheaper) to install. The chiller always operates at design flow, where it is more efficient. So, the VF drive is needed to allow the control system to vary the secondary pump GPM to maintain constant secondary loop pressure as the load requirements change.


Is there a required minimum pipe size for a shower?

1/2" water lines. Drain line determined by flow rate of showerheads and bodysprays being used. 5.7 gpm or less flow rate would need 1 1/2" drain, which is minimum size allowed.

Related questions

How many gpm will flow through a 1 pipe at 80 psi?

-39


Can you flow 25 gpm through 1 inch copper pipe?

Yes, easily.


4 inch drain pipe water flow in gpm?

100


If flow through a 10 inch pipe is 722gpm what Is the Volocity in feet?

A pipe that is 10 inch would have the velocity of 2.75 feet. This is 2.75 feet with 722 GPM.


The gpm through 2inch water pipe?

Under 400 GPM at best (without friction)


What is the maximum water flow through a 3 inch fire hose?

To find the maximum flow you would need to know the maximum pressure. A typical fire nozzle pressure would be up to 100 psi with a diameter of 1 to 1.25 inches. The GPM would be between 300 GPM and 460 GPM through the nozzle. If it were simply a 3-inch pipe with an oversized pump, running at 100 psi with no nozzle, you could (in theory) move over 3,000 GPM through the pipe (ignoring friction loss). Even at 80 psi, a master stream through a 2-inch nozzle moves over 1,000 GPM.


If flow through a 10 inch pipe is 722gpm what I'd the Volo city in feet?

It would 2.75 feet with a 10 inch pipe. It would be 2.75 feet with a volatility of 722 GPM.


What would the flow rate be for a 2 inch copper pipe at 95 PSI?

80 gpm


How many GPM through 1.5 inch pipe at 50 psi?

you need to know the viscosity of the liquid - molasses or alcohol?


What is the flow rate of water through .75 inch pex pipe at 40 psi in gpm?

The standard formula to calculate flow(GPM - gallons per minute) from a CIRCULAR orifice is:29.7 * (the square root of the pressure) * (the square of the diameter of the flow orifice)EXAMPLE using 3/4" Pex Pipe(actual I.D. of 3/4 PEX Pipe is .677") and 40 PSI pressure:29.7 * 6.325(sq. root of 40) * .458(the square of the I.D. 3/4" pipe) =A GPM of 86.03Note: You also need to account for fittings in the loss calculations; while minimal several fitting will make a difference.


What water psi must you have to flow 1000 gpm 1100 ft?

Before you can calculate the flow, you must also have the pipe size and its coefficient of friction.


Will 2600 gpm flow through 6 inch pipe?

Barely/Maybe. Exact values depend on the type of pipe, but at 2600 gpm your velocity in the pipe is pretty close to 30 ft/sec. That is at the very upper limit (really a little above) the recommended flow velocity in piping. Head loss would be about 15 psi/100ft. So, if you had a short length at this size and flow it might work OK, but for any significant length the head loss would kill you in pumping costs.