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    20 Products

    High-Cycling Threaded Check Valves

    With few moving parts to wear out, these valves withstand frequent opening and closing, pulsating flow, and rapid flow reversal. They open to allow flow in one direction and close when flow stops or reverses. All have a removable cap that provides easy access to internal components for maintenance.
    Bronze Body
    Image of Product. Front orientation. Check Valves. High-Cycling Threaded Check Valves.
    Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    End-to-End
    Lg.
    Mounting
    Position
    Features
    Specs.
    Met
    For Use With
    Disc
    Material
    Seal
    Material
    Each
    NPT Female Inlet × NPT Female Outlet—Pressure Class 125
    1/2 2.87200 psi @ 70° F175 psi @ 353° F2-20 to 4052 3/16"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBrass4894K470000000
    3/45.24200 psi @ 70° F175 psi @ 353° F2-20 to 4052 1/2"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K12000000
    1 8.86200 psi @ 70° F175 psi @ 353° F2-20 to 4053 1/16"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K13000000
    1 1/4 15.67200 psi @ 70° F175 psi @ 353° F2-20 to 4053 5/8"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K14000000
    1 1/2 21.83200 psi @ 70° F175 psi @ 353° F2-20 to 4053 7/8"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K15000000
    237.84200 psi @ 70° F175 psi @ 353° F2-20 to 4054 11/16"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K16000000
     
    NPT Female Inlet × NPT Female Outlet—Pressure Class 300
    1/2 2.871,000 psi @ 70° F520 psi @ 421° F2-20 to 4502 9/16"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K81000000
    3/45.241,000 psi @ 70° F520 psi @ 421° F2-20 to 4503"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K82000000
    1 8.861,000 psi @ 70° F520 psi @ 421° F2-20 to 4503 1/2"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K83000000
    1 1/4 15.671,000 psi @ 70° F520 psi @ 421° F2-20 to 4504 1/16"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K84000000
    1 1/2 21.831,000 psi @ 70° F520 psi @ 421° F2-20 to 4504 5/8"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K85000000
    237.841,000 psi @ 70° F520 psi @ 421° F2-20 to 4505 3/4"HorizontalRemovable CapMSS SP-80Air, Argon, Helium, Krypton, Neon, Steam, Water, XenonBronzeBronze4894K86000000
     

    Socket-Connect Check Valves for Oil and Fuel

    Insert unthreaded pipe into the socket ends and weld to create a permanent, leak-tight connection. These heavy duty valves can withstand pressures up to 1,975 psi and temperatures up to 800° F. They open to allow flow in one direction and close when flow stops or reverses. A removable cap provides easy access to internal components for maintenance.
    Steel Body—Spring-Loaded Ball
    Image of Product. Front orientation. Check Valves. Socket-Connect Check Valves for Oil and Fuel.
    Spring-loaded ball check valves resist sticking and clogging better than spring-loaded piston check valves.
    Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    End-to-End
    Lg.
    Mounting Position
    Features
    Specs. Met
    For Use With
    Ball Material
    Spring Material
    Seal Material
    Each
    Socket Connect × Socket Connect—Pressure Class 800
    3/42.691,975 psi @ 100° F57-20 to 8003 5/8"Any Angle, Horizontal, VerticalRemovable CapAPI Std 598, API Std 602, ASME B16.34Diesel Fuel, Natural Gas304 Stainless Steel
    		304 Stainless Steel
    		304 Stainless Steel/Graphite4618K820000000
    1 5.081,975 psi @ 100° F107-20 to 8004 3/8"Any Angle, Horizontal, VerticalRemovable CapAPI Std 598, API Std 602, ASME B16.34Diesel Fuel, Natural Gas304 Stainless Steel
    		304 Stainless Steel
    		304 Stainless Steel/Graphite4618K83000000
    222.341,975 psi @ 100° F527-20 to 8006 13/16"Any Angle, Horizontal, VerticalRemovable CapAPI Std 598, API Std 602, ASME B16.34Diesel Fuel, Natural Gas304 Stainless Steel
    		304 Stainless Steel
    		304 Stainless Steel/Graphite4618K86000000
     

    High-Performance Threaded Check Valves for Fuel

    These heavy duty valves can withstand pressures up to 1,975 psi and temperatures up to 800° F. They open to allow flow in one direction and close when flow stops or reverses. All have a removable cap that provides easy access to internal components for maintenance.
    Steel Body—Spring-Loaded Ball
    Image of Product. Front orientation. Check Valves. High-Performance Threaded Check Valves for Fuel.
    Spring-loaded ball check valves resist sticking and clogging better than spring-loaded piston check valves.
    Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    End-to-End
    Lg.
    Mounting Position
    Features
    Specs. Met
    For Use With
    Ball Material
    Spring Material
    Seal Material
    Each
    NPT Female Inlet × NPT Female Outlet—Pressure Class 800
    1/2 1.531,975 psi @ 100° F57-20 to 8003 1/8"Any Angle, Horizontal, VerticalRemovable CapAPI Std 598, API Std 602, ASME B16.34Diesel Fuel, Natural Gas304 Stainless Steel
    		304 Stainless Steel
    		304 Stainless Steel/Graphite4618K710000000
    3/42.691,975 psi @ 100° F57-20 to 8003 5/8"Any Angle, Horizontal, VerticalRemovable CapAPI Std 598, API Std 602, ASME B16.34Diesel Fuel, Natural Gas304 Stainless Steel
    		304 Stainless Steel
    		304 Stainless Steel/Graphite4618K72000000
    1 5.081,975 psi @ 100° F107-20 to 8004 3/8"Any Angle, Horizontal, VerticalRemovable CapAPI Std 598, API Std 602, ASME B16.34Diesel Fuel, Natural Gas304 Stainless Steel
    		304 Stainless Steel
    		304 Stainless Steel/Graphite4618K73000000
    1 1/4 8.961,975 psi @ 100° F267-20 to 8004 3/4"Any Angle, Horizontal, VerticalRemovable CapAPI Std 598, API Std 602, ASME B16.34Diesel Fuel, Natural Gas304 Stainless Steel
    		304 Stainless Steel
    		304 Stainless Steel/Graphite4618K74000000
    1 1/2 14.11,975 psi @ 100° F527-20 to 8006"Any Angle, Horizontal, VerticalRemovable CapAPI Std 598, API Std 602, ASME B16.34Diesel Fuel, Natural Gas304 Stainless Steel
    		304 Stainless Steel
    		304 Stainless Steel/Graphite4618K75000000
     
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