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- What is a bleed valve and what does a bleed valve do
A bleed valve is a valve that is used to isolate the flow of the fluid or air Bleed valves are mostly used in many industrial applications such as piping systems and in heavy-duty gas turbines The inlet of the bleed valve will be small so that it can restrict the flow of air or […]
- P ID symbols used in Developing Instrumentation Diagrams - AutomationForum
Solenoid or Binary Valve: Angular Valve: Plug Valve: Bleeder Valve: Flow Control Valve: FRC: Flow
- What is a vacuum breaker valve and what is the use of a vacuum breaker . . .
A vacuum breaker valve is inevitable in a pipeline, these devices are very reliable and economical pipeline surge components this device only needs less maintenance The vacuum breaker valve is a valve that has a large orifice combined with an air release valve These valves are installed in a place where the water column separation can occur
- What is a counterbalance valve? | Instrumentation and . . . - AutomationForum
This type of valve would allow the flow in one direction and it would restrict the flow in the opposite direction These valves are normally closed valves, in order to do a reverse flow a check valve is used These valves are mostly placed between a cylinder and the directional control valve The counterbalance valve […]
- What is a needle valve and what is the purpose of needle valves
The needle valve symbol typically includes the standard 2-way valve symbol with an arrow or additional marking to indicate that it is a needle valve In P ID (Piping and Instrumentation Diagram) schematics, the symbol may be represented as a valve with a diagonal line through the body or an arrow pointing to the flow direction, distinguishing
- Control Valve Selection and Recommended Practices for . . . - AutomationForum
Valve Material Selection Material for valve bodies should follow project pipeline material standards For instance: Temperatures below -20°F (-29°C) call for either stainless steel or nickel alloys High-pressure steam, flashing water, or boiler feed water where ΔP exceeds 200 psi calls for chrome-molybdenum alloys
- Essential Control Valve Interview Questions - AutomationForum
Explore 50+ control valve interview questions covering installation, maintenance, troubleshooting, directional control valves, solenoid valves, motorized valves, and pressure regulators
- What is Snubber Circuit and its working with types. - AutomationForum
Snubbers are used to restrict movement in pipe and equipment during unexpected circumstances including earthquakes, turbine trips, and safety relief valve closure Snubbers constrain a component in irregular situations yet allow for free thermal mobility under normal circumstances
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