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Home > Industrial Valve > Check Valves > Power Station Check Valve
What is Power Station Check Valve ?
Power station check valve refers to the valve that automatically opens and closes the valve flap relying on the flow of the medium itself to prevent the backflow of the medium. The power station check valve is an automatic valve whose main function is to prevent the backflow of the medium, prevent the reversal of the pump and the drive motor, and the discharge of the container medium. It can be used for water supply and drainage system, power plant water circulation system pump outlet to prevent media backflow and prevent water hammer damage to the pump.
Advantages of power station check valve
  • 01
    Short disc travel and high sensitivity greatly reduce the time required for disc closing and effectively reduce the water hammer pressure of the vertical check valve.
  • 02
    The sealing surface is made of alloy steel or cemented carbide, and the matching of sealing materials is reasonable and the service life is long.
  • 03
    Built-in pin structure, reduce leakage, use more reliable.
  • 04
    The valve stem is an integrated design of forging parts, and the shaft shoulder at the end of the valve stem can prevent the valve stem from flying out under pressure during use.
  • 05
    High temperature medium sealing seat will choose metal hard sealing material, metal material will not be affected by high temperature sealing condition.
  • 06
    Metal seal structure design, valve disc and seat sealing surface surfacing carbide, after hardening treatment, high temperature and high pressure, erosion resistance, impact resistance, reliable sealing.
Design Standard
  • API
  • ASME
  • ANSI
  • EN
  • DIN
  • GOST
  • GB
  • JIS
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The characteristics of power station check valve

The valve has a large flow section, small flow resistance, the plate adopts a streamlined structure, water medium flowing through the plate is not easy to produce turbulence and cavitation, the valve can better protect the pipeline system in front of the valve and behind the valve. Extend the service life of piping system.

The sealing surface of the valve body and valve disc is surfacing alloy steel or hard alloy, even in the medium with particles, the sealing surface will not wear and erode. The sealing surface of the valve disc and the seat will not produce strong friction in the operation of the valve, which extends the service life of the valve.

The cavity in the body is small, which can effectively reduce the direct current of the medium, and the molding process is used, which can ensure the density of the sealing surface is good, and the fluorine-lined material can effectively achieve zero leakage.

The valve cover is sealed by pressure self-tightening. The higher the pressure of the sealing ring, the better the sealing effect. Ensure the valve under high temperature and high pressure conditions have superior sealing performance.


Technical Parameters
SizeDN15-DN2000, 1/2''-80''
PressurePN6-PN760, Class150-Class4500
Temperature-200°C to 650°C
Connection TypeFlange, Thread, Wafer, Welded
Operation ModeManual, Pneumatic, Electric, Hydraulic, Gear operation


Materials
Valve BodyForgedA105, LF2, F5, F9, F11, F22, F304, F316, F347, F904, F51, F53, F310, N08020, Inconel625, etc
CastWCB, LCB, C5, C12, WC6, WC9, CF8, CF8M, CF8C, 4A, 5A, CN7M, C95800, CW6MC, etc
Valve StemF6a, 17-4PH, XM-19, F304, F316, F347, F904, F51, F53, F310, Monel400, Monel500, N08020, Inconel625, Incoloy825, etc.
Valve DiscA105, LF2, F5, F9, F11, F22, F304, F316, F347, F904, F51, F53, F310, N08020, Inconel625, F6a, 17-4PH, XM-19, F304, F316, F347, F904, F51, F53, F310, Monel400, Monel500，Incoloy825，WCB, LCB, C5, C12, WC6, WC9, CF8, CF8M, CF8C, 4A, 5A, CN7M, C95800, CW6MC, etc.
Seat SealingSS, BR, CU, AS, CS, AL, PTFE, NBR, FKM, AI203, etc.


Design Standards
Valve BodyAPI 6D, API 608, ASME B16.34, DIN 3357, BS 5351, GOST 9833, JIS B2071, GB/T 12237, etc
FlangeANSI B16.5, EN 1092-1, JIS B2220, GB/T 9113, ASME B16.47, GOST 12821, DIN 2543-2545, etc
ConnectionANSI B16.10, ASME B16.25, JIS B2212, GOST 33259, DIN 3202, etc
Test StandardsAPI 598, ISO 5208, BS EN 12266, ASME B16.104, GOST 9544-2015, JIS B2003, DIN 3230, etc
Why Choose our power station check valve
2000+
2000+ Choose Our Products
Our Company Has Launched A One-stop Service
  • 01
    Determine the use environment
    Determine the working conditions of the valve, such as the nature of the medium, the ambient temperature, the flow rate and other factors that affect the valve selection
  • 02
    Select valve type and material
    After determining the working condition, we begin to choose the right valve type. Our engineers will choose the most suitable valve type according to the actual situation to maximize the performance of the valve
  • 03
    Expert verification
    After the valve type and materials are selected, the final production drawing is finalized after repeated inferences and verification by experts
  • 04
    Production
    We use information visualization production, each step of valve production can understand the progress in real time through the online system, each production step has a special inspection and audit
  • 05
    Quality Violence
    After the production of our products, they will go through 15 tests (pressure test, PT, UT, size test, etc.), and finally go through the joint inspection and confirmation of multiple departments before finally leaving the warehouse and entering the packaging link
  • 06
    Super long after-sales
    The valves produced by our company have a 2-year long warranty, providing our customers with lifelong free technical support services
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