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Slow Closing Check Valve

14 products found

A slow-closing check valve (or dual-stage closing non-return valve) is an automatic pipeline safety device engineered with an integrated hydraulic or pneumatic damping mechanism to mitigate destructive water hammer shocks in high-capacity pumping systems. Unlike conventional check valves that slam shut instantly when forward flow stops, this specialized valve splits its closing cycle into two distinct phases: a rapid initial closure (covering roughly 90% of the stroke) to arrest the bulk of the reversing fluid, followed by a controlled, slow-closing second stage (the remaining 10%). This gradual deceleration is regulated by an adjustable damping piston or diaphragm bypass line that safely dissipates kinetic pressure waves without inducing transient pipe vibration or stress cracking. Sourcing managers and water utility contractors can eliminate pipeline rupture risks and suppress system surge noise by importing premium slow-closing check valves directly from certified manufacturers in China via our advanced B2B digital marketplace.

Showing 14 result(s)
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Butterfly Slow Closing Check Valve, CJ/T 282, CF8, DN200, PN16

ZHEJIANG VERVO VALVE CO., LTD

Butterfly Slow Closing Check Valve, CJ/T 282, CF8, DN200, PN16

Discover a reliable Butterfly Type Check Valve supplier offering top-quality products. Our valves ar...
Slow Closing Butterfly Check Valve, CJ/T 282, WCB, DN800, RF

ZHEJIANG VERVO VALVE CO., LTD

Slow Closing Butterfly Check Valve, CJ/T 282, WCB, DN800, RF

Model Number: CKV-20250530-01

As a trusted manufacturer of slow-closing butterfly check valves in China, we specialize in large ec...
Butterfly Slow Closing Check Valve, A216 WCB, DN700, 150 LB

ZHEJIANG VERVO VALVE CO., LTD

Butterfly Slow Closing Check Valve, A216 WCB, DN700, 150 LB

Model Number: CKV-20250530-02

As a reliable butterfly slow-closing check valve supplier from China, we offer high-performance valv...
Micro Resistance Slow Closing Check Valve, CF3M, DN400, PN10

ZHEJIANG VERVO VALVE CO., LTD

Micro Resistance Slow Closing Check Valve, CF3M, DN400, PN10

Model Number: CKV-20250613-01

As a leading Micro Resistance Slow Closing Check Valve manufacturer in China, we offer valves design...
Slow Closing Check Valve, CJ/T 154, QT450, DN800, PN10, RF

ZHEJIANG VERVO VALVE CO., LTD

Slow Closing Check Valve, CJ/T 154, QT450, DN800, PN10, RF

Model Number: CKV-20250613-02

As a China Micro Resistance Slow Closing Check Valve supplier, we provide valves designed to CJ/T 15...
Micro Resistance Check Valve, CJ/T 154, QT450-10, DN500, PN10

ZHEJIANG VERVO VALVE CO., LTD

Micro Resistance Check Valve, CJ/T 154, QT450-10, DN500, PN10

Model Number: CKV-20250613-03

As a Micro Resistance Slow Closing Check Valve factory from China, we manufacture valves to CJ/T 154...
Slow Closing Butterfly Check Valve, A216 WCB, DN600, PN10

ZHEJIANG VERVO VALVE CO., LTD

Slow Closing Butterfly Check Valve, A216 WCB, DN600, PN10

Model Number: CKV-20250613-04

As a Micro Resistance Slow Closing Butterfly Check Valve supplier in China, we offer valves engineer...
Slow Closing Butterfly Check Valve, F304, 52 IN, 150 LB, RF

ZHEJIANG VERVO VALVE CO., LTD

Slow Closing Butterfly Check Valve, F304, 52 IN, 150 LB, RF

Model Number: CKV-20250627-01

As a leading slow closing butterfly check valve supplier, we offer valves designed to CJ/T 282 stand...
Pneumatic Slow Closing Check Valves, A216 WCB, DN250, PN10

ZHEJIANG VERVO VALVE CO., LTD

Pneumatic Slow Closing Check Valves, A216 WCB, DN250, PN10

Model Number: CKV-20250627-02

As a leading pneumatic closing check valve manufacturer from China, we offer a high-performance valv...
Slow Closing Swing Check Valve, ASTM A536, 2-36 Inch, CL150

XIAMEN LANDEE INDUSTRIES CO., LTD.

Slow Closing Swing Check Valve, ASTM A536, 2-36 Inch, CL150

Model Number: LD-20250421-CV-01

The Micro Resistance Slow Closing Swing Check Valve is designed for efficient flow control. It featu...
ASTM A536 Swing Check Valve, Ductile Iron, 2-36 IN, 150 LB

XIAMEN LANDEE INDUSTRIES CO., LTD.

ASTM A536 Swing Check Valve, Ductile Iron, 2-36 IN, 150 LB

Model Number: LV-SCV-20250425-03

We are a specialized factory producing slow closing swing check valves designed for smooth and effic...
Micro Resistance Slow Closing Check Valve, QT450, DN100, PN16

Zhejiang Magpie Sealing Technology Co., Ltd.

Micro Resistance Slow Closing Check Valve, QT450, DN100, PN16

Model Number: MV-20250630-CSCV-04

The Micro Resistance Slow Closing Check Valve is a high-quality valve designed for industrial applic...
Slow-closing Butterfly Check Valve, DI, QT450, DN100, PN16

Zhejiang Magpie Sealing Technology Co., Ltd.

Slow-closing Butterfly Check Valve, DI, QT450, DN100, PN16

Model Number: MV-20250701-CSCV-01

The Slow-closing Butterfly Check Valve Factory produces robust check valves with a ductile iron QT45...
Slow Closing Silent Check Valve, QT450, DN150, PN16, Flanged

Zhejiang Magpie Sealing Technology Co., Ltd.

Slow Closing Silent Check Valve, QT450, DN150, PN16, Flanged

Model Number: MV-20250704-CSCV-01

The China Slow Closing Silent Check Valve Supplier offers a high-quality valve with a Ductile Iron Q...
Total 14 record(s), 24 record(s) per page
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