Q79Y-300

🌎 Brand: 上海冠龙阀门机械有限公司
Fire Safe

Specifications

Valve Type ID d7d67555-64ef-4b43-9620-2a3788065572
Size Range DN500-DN1500
Pressure Rating PN10.0-PN30.0
Temperature Range -60°C to 250°C
Body Material ceramic
Trim Material Hastelloy
Seal Material PTFE
Stem Material carbon steel
End Connection flanged
Standard API
Operation Method hydraulic
Flow Coefficient (Cv) 1110.13
Leak Rate zero leakage
Applicable Media chemical media
Applications chemical media
Industry Tags food & beverage
Test Pressure 114
Design Pressure 30
Design Standard API
Design Temperature 250
Body Material Grade WC9
Weight (kg) 1106
Specifications compiled from manufacturer technical datasheets.

Engineer's Selection Guide: Control Valves

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.

Frequently Asked Questions

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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