0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What valve types are used for throttling flow?
Ball-joint shut off
Is it okay to put a throttling valve on the inlet pipe of a pump?
No, it is not. It may cause cavitation.
What valves preffered in the upstream and downstream of a control valve ball valve or globe valve?
That would depend on the application such as high steam pressure and if throttling is needed
What is the effect of steam turbine control valve throttling in turbine efficiency?
In Boiler follow turbine mode , Boiler produces a constant pressure behind throttling valve and throttling valve adjusts necessary pressure and required steam as High Pressure steam for entering the turbine . In Valves Wide Open (VWO) mode the efficiency is maximum and we haven't any loss. (It's nearly 106% Turbine MCR) . In Turbine MCR , we have a little loss and consequently a little bit worse heat rate . In partial load , loss is more and efficiency worse.
Can a globe valve be uses as a blowdown valve?
HECK NO READ the ASME code or the NBBI Also read up on valves and what they are designed to do. A "Globe" valve is used for THROTTLING and severely restricts flow Personally I like using a GATE valve in combination with a ball valve for Blow down applications
Is gate valve used for throttling?
Never. Throttling will erode the valve seat and then the valve will never shut off completely.
What valve is the preferred valve to use in throttling a gate valve or globe valve?
Never ever use a Gate type of valve for throttling ONLY a globe pattern is designed for this purpose and a needle valve
Why is a throttling valve called an expansion valve?
It is not.. A globe , needle , ball valve are used for throttling For expansion either a shock absorber , diaphragm tank or air chamber are used to allow for expansion
What is the function of gate valve?
A gate valve is positive shut off and used for on of off . A globe valve is for throttling
What is the difference between a globe valve and a butterfly valve in terms of application?
Globe is used for throttling
What valve types are used for throttling flow?
Ball-joint shut off
Is pressure after throttling is more or less?
You cannot increase steam pressure through a valve without adding heat to it. Throttling steam always reduces its pressure.
Is it okay to put a throttling valve on the inlet pipe of a pump?
No, it is not. It may cause cavitation.
What valves preffered in the upstream and downstream of a control valve ball valve or globe valve?
That would depend on the application such as high steam pressure and if throttling is needed
When flushing the toilet the water pipe rattles for 10 second before it stops?
The fill valve needs to be repaired or replaced OR try throttling down on the globe valve
What is the difference between reflux valve and check valve?
A check valve allows for flow in one direction and a gate valve is used for positive shut off and a globe valve is used for throttling
What is the effect of steam turbine control valve throttling in turbine efficiency?
In Boiler follow turbine mode , Boiler produces a constant pressure behind throttling valve and throttling valve adjusts necessary pressure and required steam as High Pressure steam for entering the turbine . In Valves Wide Open (VWO) mode the efficiency is maximum and we haven't any loss. (It's nearly 106% Turbine MCR) . In Turbine MCR , we have a little loss and consequently a little bit worse heat rate . In partial load , loss is more and efficiency worse.
