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If your pressure exceeds the setting of the PRV or is below the setting

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15y ago

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What two measurements do they use to tell elevation?

barometric pressure.


How does a gate valve work?

Gate valve is basically created for an on-off service, it is designed to control the pressure drop and allow the passage of a pipe-cleaning pig. Gate valve can be also called as knife valve or slide valve.


What are the different designs of a gate valve?

There are numerous types of valves. Each has a specific function and usage and differs from the others. From seismic , to pressure they can be specialized or simple in function. A valves purpose is to allow, stop, or reduce flow of a substance thru a pipe. Most common valves on homes would be gate and ball valves. In order to learn which valves are best for your application, consult a professional. types below, that i can think of off the top of my head, there are more i am sure. -ball gate mixing pressure reducing butterfly cocks angle temperature seismic ansul backflow check


What are some problems with a globe valve?

advantages of a globe valve * you get instant access to the supply: only a 90 degree turn to open fully * less maintenance is required to the valve as you won't have to re-seat it disadvantage of a globe valve * it is harder to finely adjust the flow of your substance compared to a gate valve: a gate valve requires many more turns to fully open and close than the single 90o "part-turn" required on a globe valve


How can you tell it's an interference engine or If it's a non-interference engine?

If you give the yr/make/model/engine, could let you know... But if you want to find out your self. You need to turn piston 1 to TDC and depending on the engine, undo the valve spring keeper and measure how far the valve drops until in hits the piston. Subtract .050 of an inch and if it is less than the max valve lift you have an interference engine.

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Where is the modulating valve on a 6.0 ford power stroke diesel?

Modulating Valve ???? If you can tell me what system this valve would be in I can tell you the correct name for it and its location. example IPR valve in the high pressure oil system.


How do you adjust Gas pressure valve?

call a service technician with meter and live to tell about it......................


How can the hot water be at a higher pressure than the cold mains in an unvented system?

In an unvented system, hot water can be at a higher pressure than the cold mains due to the presence of a pressure-reducing valve on the cold water supply. This valve controls the pressure of the cold water coming into the system, allowing the pressure of the hot water, which is heated and stored at a higher temperature, to be higher. Additionally, the expansion vessel in the system helps regulate pressure fluctuations by absorbing excess pressure from heating water.


What is a tell tale on a relief valve?

A tell tale on a relief valve is a small opening or connection that allows excess fluid to escape when the relief valve opens. It is used to visually indicate when the relief valve is relieving pressure and discharging fluid. Tell tales are important for monitoring the performance and functionality of relief valves in a system.


Will a low oil pressure switch reset itself on a 2002 GMC Sonoma 4.3?

A low oil pressure gauge has no reset. It comes on to tell you that the oil pressure is dangerously low. It will not go off until the pressure is restored. You may be low of oil or the pressure sensors may be defective.


How can i tell which ac valve in a neon is the low pressure side?

On a R134a system the low side service port is the smaller one.


How can you tell if your car is defective?

you can tell your car is defective if it isnt working


How can you tell if the fuel pump is good in a 1997 jeep wrangler?

1. you should be able to hear it running 2. there is a schrader valve on the fuel rail, connect a fuel pressure meter to it and check your fuel pressure.


How to tell if valve or lifter is bad in 2001 Chevy S10?

You can tell a bad valve by doing a compression test.


How can you tell the difference between intake valve and exhuast valve?

no you cant


How to tell if a pressure tank is going bad?

If it's a galvanized tank, it would be leaking. If it's a bladder tank, it will not have any air pressure in it and there may be water coming out of the valve stem. It will also be very heavy. bob...


How do you tell Which is the intake and which is the exhaust valve on a 305 motor?

The intake valve is bigger.