Check Valves
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![Large-Diameter Axial Flow Check Valve]()
Large-Diameter Axial Flow Check ValveThis axial flow check valve features a streamlined, straight-through body design with a spring-assisted disc that moves axially along the flow path. The valve opens automatically under forward...
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![F51 – 5000PSI Check Valve]()
F51 – 5000PSI Check ValveThis high-pressure check valve features an F51 duplex stainless steel body, rated for 5000PSI service. F51 (S31803/SAF 2205) is a duplex stainless steel with a two-phase microstructure of...
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![Counter Weight Check Valve With Strainer]()
Counter Weight Check Valve With StrainerThis swing-type check valve features a lever-and-weight external actuation system combined with an integral strainer screen. The valve is designed to remain fully open under normal forward flow...
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![CF8 Dual Plate Wafer Check Valve]()
CF8 Dual Plate Wafer Check ValveThis wafer check valve features a dual-plate design with a CF8 body, offering reliable corrosion resistance. The plates open rapidly under forward flow and close quickly via spring assistance and...
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![WCB Counterweight Check Valve]()
WCB Counterweight Check ValveNSV 18-inch Counterweight Check Valve features WCB cast steel construction. Designed for high-pressure industrial systems. Counterweight mechanism ensures rapid closure. Eliminates water hammer...
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![WCB Extended Body Axial Flow Check Valve]()
WCB Extended Body Axial Flow Check ValveThe NSV Extended Body Axial Flow Check Valve is made of WCB cast steel, designed for deep burial or special installation conditions. The unique extended body structure fits thick insulation and...
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![WCB Axial Flow Check Valve]()
WCB Axial Flow Check ValveThe NSV Axial Flow Check Valve is made of WCB cast steel for differential applications. Streamlined flow-guiding structure enables axial straight-through flow with minimal pressure loss; rapid...
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![A105 Wafer Single Plate Check Valve]()
A105 Wafer Single Plate Check ValveThis NSV Wafer Single Plate Check Valve is a robust, API 6D-compliant valve designed for large-diameter pipelines in critical industries such as oil & gas, petrochemical, and power generation.
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![Dual Plate EPDM Lined Swing Check Valve]()
Dual Plate EPDM Lined Swing Check ValveThis dual plate swing check valve combines a WCB body with a full EPDM lining for excellent sealing. It features Monel discs, offering exceptional resistance to seawater corrosion and high...
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![Wafer Tilting Disc Check Valve]()
Wafer Tilting Disc Check ValveThe NSV wafer tilting disc check valve features a compact, lightweight design with a pivoting disc that opens and closes automatically with flow direction. Its low cracking pressure, fast...
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![30" Wafer Dual Plate Check Valve]()
30" Wafer Dual Plate Check ValveThe NSV 30" wafer-type dual plate check valve is designed for large bore, medium pressure piping in water treatment, power, oil & gas, and municipal applications.The dual plate design with spring...
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![Carbon Steel Y-Type Swing Check Valve]()
Carbon Steel Y-Type Swing Check ValveThe NSV carbon steel Y-type swing check valve features a Y-shaped flow path and a swing disc design, allowing media to flow nearly straight through—significantly reducing turbulence and pressure...
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