| Valve Type ID | d7d67555-64ef-4b43-9620-2a3788065572 |
|---|---|
| Size Range | DN250-DN1500 |
| Pressure Rating | PN40.0-PN200.0 |
| Temperature Range | 20°C to 600°C |
| Body Material | alloy steel |
| Trim Material | copper alloy |
| Seal Material | NBR |
| Stem Material | alloy steel |
| End Connection | threaded |
| Standard | ASME |
| Operation Method | worm gear |
| Flow Coefficient (Cv) | 924.51 |
| Leak Rate | ANSI Class V |
| Applicable Media | high-viscosity media |
| Applications | high-viscosity media |
| Industry Tags | HVAC |
| Test Pressure | 279 |
| Design Pressure | 200 |
| Design Standard | ASME |
| Design Temperature | 600 |
| Body Material Grade | CF8M |
| Weight (kg) | 1020 |
Control valves modulate flow in response to a control signal to maintain a process variable. Selection involves sizing for the required Cv, choosing the trim and body style, defining the flow characteristic, and specifying the actuator and positioner. Leakage class per FCI 70-2 should be specified for the duty.
Q: What is a control valve used for?
A: Control valves regulate process flow, pressure, level, or temperature by modulating the flow path in response to a controller signal.
Q: How are control valve leakage classes defined?
A: Leakage is typically classified per FCI 70-2 / IEC 60534-4, ranging from Class I (no test) to Class VI (tight shutoff, bubble-tight for soft seats).
Guidance reflects general engineering practice for control valves; confirm against the project specification and applicable standards before procurement.
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