D57F-300

🌎 Brand: 上海电站阀门厂有限公司
Fire Safe

Specifications

Valve Type ID a55c40dc-86ff-43bc-8652-e8146cf91d12
Size Range DN20-DN100
Pressure Rating PN300.0-PN1500.0
Temperature Range -20°C to 800°C
Body Material cast steel
Trim Material copper alloy
Seal Material PTFE
Stem Material alloy steel
End Connection union
Standard JIS
Operation Method intelligent control
Flow Coefficient (Cv) 1116.31
Leak Rate zero leakage
Applicable Media natural gas
Applications natural gas
Industry Tags pharmaceutical
Test Pressure 255
Design Pressure 1500
Design Standard JIS
Design Temperature 800
Body Material Grade WCB
Weight (kg) 154
Specifications compiled from manufacturer technical datasheets.

Engineer's Selection Guide: Pressure Relief Valves

Pressure relief valves protect equipment from overpressure. Selection requires the required relieving capacity, set pressure, backpressure conditions, and the governing code (e.g., ASME VIII for boilers/pressure vessels). Spring-loaded and pilot-operated designs suit different backpressure profiles.

Frequently Asked Questions

Q: What is a pressure relief valve used for?

A: A pressure relief valve automatically discharges fluid when pressure exceeds a set limit, protecting pressurized equipment from overpressure.

Q: Which standards govern pressure relief valves?

A: Spring-loaded relief valves commonly follow API 526 (dimensions) and API 527 (seat tightness), with sizing per API 520 and ASME Section VIII.

Guidance reflects general engineering practice for pressure relief valves; confirm against the project specification and applicable standards before procurement.

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