
Pilot operated safety valve, newly -structure, is mainly applied to such trades as petroleum & natural gas, Chemistry, electric, metallurgy & burning gas. It is the best super-pressure protecting equipment on press equipment, Container, or pipeline.
Series - 150 To 900
It is mainly characterized by shifting direct function of spring to indirect function of guide valve, What’s more, main valve, applying for sleeve piston & double sealed seat. It is characterized by high precision of action, good recycling function, fast turning back to seat, ability to high-pressure leaking, long working time & security, together with read-adjustment on line, automatic turning back to seat after leaking again and again, tight closure, operating and maintaining convenience.
Design Features
- Pilot operated safety valve, newly-structured, is mainly applied to such trades as petroleum & natural gas, chemistry, electric, metallurgy & burning gas etc
- It is the best super-pressure protecting equipment on press equipment, container, or pipeline
- It is mainly characterized by shifting direct function of pilot valve to indirect function of main valve
- The main valve, applying for sleeve piston, is characterized by high precision of action, good recycling function, fast turning back to seat, ability to high-pressure leaking, long working time & security, together with readjustment on line, automatic turing back to seat after open again and again, tight closure, operating and maintaining convenience
- Size 1″-8″ DN25-DN200
- Pressure Class "150, 300, 600, 900" | PN16-PN160
- End Connection Flange (FF, RF, RJ)
- Body Material WCB, LCB, CF8, CF8M, CF3M
- Disc Material 304+F46, 316+F46, Monel+F46, 316L+F46
- Spring Material 316, Inconel
- Stem Material A182 F6a, 304, 316, 17-4PH, F11
- Design Standard API RP 520
- Face to Face Standard API 526
- Test Standard API 527
- Temperature Range -196℃~650℃
- Actuator Options Pilot Operated
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Structure Style
- Pilot Operated, Angle
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Connection Standard
- Flange Drilling: ASME B16.5, ASME B16.47, GB/T 9113, JB/T 79
- Butt Weld: ASME B16.25, GB/T 12224