answersLogoWhite

0

Quick control NRV is generally a non return valve that has a special mechanism of closing quickly during emergency situations. It has a quicker response than a normal NRV. It is used in places of extreme caution where the downstream fluid should not by any chance return to the equipment concerned. For example it is used downstream a turbine bleed line to prevent high pressure steam from backing into the turbine.

User Avatar

Wiki User

11y ago

What else can I help you with?

Related Questions

Do you need a manhole with a non return and a stop valve?

Yes, a manhole with a non-return valve and a stop valve is often necessary in wastewater systems to prevent backflow and control flow rates. The non-return valve ensures that wastewater does not flow back into the system, while the stop valve allows for maintenance and repairs without draining the entire system. Together, they enhance system reliability and maintenance efficiency.


Where to fit ashower non return valve?

ON a Hansgrohe do u fit a non return valve with a diverter with hand shower


What is the meaning of S.D.N.R. in the globe valve?

shut down non return valve


Is a check valve the same as a non return valve?

Yes, a check valve and a non-return valve are the same thing. They are designed to allow fluid or gas to flow in one direction only and prevent reverse flow.


What is a non-return valve?

it allows flow only on one side... the return path (opposite flow ) not possible..


What is the symbols for a screw down valve?

symbol for screw down non return valve


Is there any non-return valve in a bicycle?

Bicycles with inflatable tires usually have one non-return valve for each tube/tire. Bicycles with air-sprung suspension will have one for each shock.


What is the purpose of a Non return valve?

it allows the water to flow in only one direction.


Why does your fuel filter for an 85 305 have a rubber plug?

non-return check valve


Difference between check valve and non return valve?

A non return valve is used mainly on fluid pipe, which uses gravity and the fluid to close it. A check valve is normally spring loaded to ensure a positive seal and will need a greater delta P to open. Also check valves are normally used with gas.


How does a screw down non-return valve works?

Screw down non return valves only allow a liquid to be passed one way through it. Even when the valve is in open position valve lid is on the seat unless any liquid is pressurized from its inlet side.Any back flow will be restricted.


How does a screw down non return valve works?

Screw down non return valves only allow a liquid to be passed one way through it. Even when the valve is in open position valve lid is on the seat unless any liquid is pressurized from its inlet side.Any back flow will be restricted.