Check Valves

Check valves for fluids are a type of valves which allow fluids to flow in one direction, but automatically close when the flow reverses. They are also called non-return valves or one-way valves. They can prevent the backflow securely and open with small differential pressure. They are applied to piping systems where the backflow prevention is required, frequent open/close are expected, some restrictions exist around the pipings, etc. To install, there are screw-in connection type to screw in the check valve, and flangeless type that clamps the entire check valve with pipes. Furthermore, they are divided into small diameter valves or large diameter valves. Materials of the main body are copper alloy, stainless steel, fluoropolymer, plastic, etc. Sealing materials vary depending on the application; metal is used for places where the temperature becomes high due to steam, etc., and rubber is for places under low temperatures such as hot or cold water.

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Specifications
Type
Compatible Fluid
Nominal Pressure
Material
Supply Side Connection Type
Supply Side Plumbing Thread Nominal
Supply Side Tube Flange Nominal
Control Side Connection Type
Control Side Plumbing Thread Nominal
Control Side Tube Flange Nominal
Maximum Operating Pressure(MPa)
Cracking Pressure(MPa)

    Check Valve - Nipple Fitting, Male BSPT to Male BSPT, AT Series

      Check Valves - Standard

        Bronze General-Purpose 125 Type Swing Check Valve Screwing

          Bronze General-Purpose 125 Type Y Shaped Swing Check Valve Screw-in

            150 E Type - Bronze Screw-in Type Lift Check Valve

              Inline Check Valve for Steam or Water - CVC3 Series

                JIS 10K Type - Cast Iron F Type Swing Check Valve (JIS B 2031)

                  Check Valves - Hydraulic, for Oil

                    General Purpose Bronze 10K Lift Check Valve Screw-in

                      Bronze JIS-Standard 10K Swing Check Valve Screw-in

                        Malleable Valve, General-Purpose 10K Type, Check Valve (Inline) Screw-in

                          10 K - Bronze Screw-in Type Swing Check Valve (Metal Sheet) (JIS B 2011), New JIS Mark Displayed

                            10K-Type Cast Iron Wing Check Valve

                              Class 10 K - Screw-in Type Swing Check Valve

                                Swing Check Valve - Threaded, NPT Female, 304 Stainless Steel, Class 125

                                  Stainless Steel General-Purpose 10K Swing Check (SCS13A) Valve Flange

                                    Check Valve - Nipple Fitting, Female BSPT to Female BSPT, AS Series

                                      General Purpose Bronze150-Type Lift Check Screw Valve

                                        Check Fitting CSB

                                          Malleable Valve, General-Purpose 10K Type, Check Valve (Lift Type) Screw-in

                                            Stainless Steel Swing Check Valve, SVC Type, SVC2 Type

                                              125 Type - Bronze Screw-in Type Swing Check Valve

                                                Straight Type SM Type JIS10K

                                                  General Purpose Ductile Iron 10K Lift Check Valve Flange

                                                    Stainless Steel General-Purpose 10K Swing Check (SCS14A) Valve Screw-in

                                                      General Purpose Ductile Iron 20K Lift Check Valve Flange

                                                        Check Fitting CSA

                                                          125H Model Bronze Screw-in Type Swing Check Valve

                                                            Straight SMC Type JIS10K

                                                              Check Valve EA425EC-2

                                                                General Purpose Ductile Iron 10K Swing Check Valve Flange

                                                                  General Purpose Ductile Iron 20K Lift Check Valve Screw-in

                                                                    General Purpose Ductile Iron 10K Lift Check Valve Screw-in

                                                                      General Purpose Ductile Iron 20K Swing Check Valve Flange

                                                                        Stainless Steel General-Purpose 10K Swing Check (SCS13A) Valve Screw-in

                                                                          Bronze General Purpose 10K Swing Check Valve Flange

                                                                            Malleable Valve, General-Purpose 10K Type, Check Valve (Swing Type), Screwed

                                                                              16K Type Ductile Cast-Iron Screw Down Lift Check Valve Union Bonnet Type

                                                                                J10K Lead Free Bronze Screw Down Swing Check Valve (Metal Sheet) (JIS B 2011) New JIS Mark Displayed

                                                                                  Swing Check Valve EA465A-6

                                                                                  Brand

                                                                                  Asoh

                                                                                  MISUMI

                                                                                  Kitz

                                                                                  Kitz

                                                                                  Toyo Valve

                                                                                  Miyawaki

                                                                                  Toyo Valve

                                                                                  MISUMI

                                                                                  Kitz

                                                                                  Kitz

                                                                                  Hitachi Valve

                                                                                  Toyo Valve

                                                                                  Toyo Valve

                                                                                  Toyo Valve

                                                                                  USA Sealing

                                                                                  Kitz

                                                                                  Asoh

                                                                                  Kitz

                                                                                  Koyo

                                                                                  Hitachi Valve

                                                                                  ONDASEISAKUSYO

                                                                                  Toyo Valve

                                                                                  Ishizaki

                                                                                  Kitz

                                                                                  Kitz

                                                                                  Kitz

                                                                                  Koyo

                                                                                  Toyo Valve

                                                                                  Ishizaki

                                                                                  ESCO

                                                                                  Kitz

                                                                                  Kitz

                                                                                  Kitz

                                                                                  Kitz

                                                                                  Kitz

                                                                                  Kitz

                                                                                  Hitachi Valve

                                                                                  Toyo Valve

                                                                                  Toyo Valve

                                                                                  ESCO

                                                                                  Product Series

                                                                                  Check Valve - Nipple Fitting, Male BSPT to Male BSPT, AT Series

                                                                                  Check Valves - Standard

                                                                                  Bronze General-Purpose 125 Type Swing Check Valve Screwing

                                                                                  Bronze General-Purpose 125 Type Y Shaped Swing Check Valve Screw-in

                                                                                  150 E Type - Bronze Screw-in Type Lift Check Valve

                                                                                  Inline Check Valve for Steam or Water - CVC3 Series

                                                                                  JIS 10K Type - Cast Iron F Type Swing Check Valve (JIS B 2031)

                                                                                  Check Valves - Hydraulic, for Oil

                                                                                  General Purpose Bronze 10K Lift Check Valve Screw-in

                                                                                  Bronze JIS-Standard 10K Swing Check Valve Screw-in

                                                                                  Malleable Valve, General-Purpose 10K Type, Check Valve (Inline) Screw-in

                                                                                  10 K - Bronze Screw-in Type Swing Check Valve (Metal Sheet) (JIS B 2011), New JIS Mark Displayed

                                                                                  10K-Type Cast Iron Wing Check Valve

                                                                                  Class 10 K - Screw-in Type Swing Check Valve

                                                                                  Swing Check Valve - Threaded, NPT Female, 304 Stainless Steel, Class 125

                                                                                  Stainless Steel General-Purpose 10K Swing Check (SCS13A) Valve Flange

                                                                                  Check Valve - Nipple Fitting, Female BSPT to Female BSPT, AS Series

                                                                                  General Purpose Bronze150-Type Lift Check Screw Valve

                                                                                  Check Fitting CSB

                                                                                  Malleable Valve, General-Purpose 10K Type, Check Valve (Lift Type) Screw-in

                                                                                  Stainless Steel Swing Check Valve, SVC Type, SVC2 Type

                                                                                  125 Type - Bronze Screw-in Type Swing Check Valve

                                                                                  Straight Type SM Type JIS10K

                                                                                  General Purpose Ductile Iron 10K Lift Check Valve Flange

                                                                                  Stainless Steel General-Purpose 10K Swing Check (SCS14A) Valve Screw-in

                                                                                  General Purpose Ductile Iron 20K Lift Check Valve Flange

                                                                                  Check Fitting CSA

                                                                                  125H Model Bronze Screw-in Type Swing Check Valve

                                                                                  Straight SMC Type JIS10K

                                                                                  Check Valve EA425EC-2

                                                                                  General Purpose Ductile Iron 10K Swing Check Valve Flange

                                                                                  General Purpose Ductile Iron 20K Lift Check Valve Screw-in

                                                                                  General Purpose Ductile Iron 10K Lift Check Valve Screw-in

                                                                                  General Purpose Ductile Iron 20K Swing Check Valve Flange

                                                                                  Stainless Steel General-Purpose 10K Swing Check (SCS13A) Valve Screw-in

                                                                                  Bronze General Purpose 10K Swing Check Valve Flange

                                                                                  Malleable Valve, General-Purpose 10K Type, Check Valve (Swing Type), Screwed

                                                                                  16K Type Ductile Cast-Iron Screw Down Lift Check Valve Union Bonnet Type

                                                                                  J10K Lead Free Bronze Screw Down Swing Check Valve (Metal Sheet) (JIS B 2011) New JIS Mark Displayed

                                                                                  Swing Check Valve EA465A-6

                                                                                  CAD
                                                                                  • 2D / 3D
                                                                                  • 2D
                                                                                  • 2D
                                                                                  • 2D / 3D
                                                                                  • 2D
                                                                                  • 2D
                                                                                  • 2D
                                                                                  • 2D
                                                                                  • 2D
                                                                                  • 2D
                                                                                  • 2D
                                                                                  • 2D
                                                                                  • 2D
                                                                                  • 2D
                                                                                  Days to Ship 4 Days 4 Days 4 Days 22 Days 5 Days Same Day

                                                                                  Stock Items Included

                                                                                  5 Days 4 Days 4 Days 4 Days 4 Days 4 Days 5 Days 4 Days 10 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 5 Days 5 Days 5 Days 5 Days 22 Days 4 Days 5 Days 4 Days 5 Days 5 Days 4 Days 5 Days 4 Days 5 Days 4 Days 5 Days 5 Days 4 Days
                                                                                  Specifications
                                                                                    • Rapid Design
                                                                                              • Rapid Design
                                                                                                                                                              TypeSpring Type (In-line)Swing TypeSwing TypeSwing TypeLift TypeSpring Type (In-line)Swing TypeSpring Type (In-line)Lift TypeSwing TypeSpring Type (In-line)Swing TypeWafer TypeSwing TypeSwing TypeSwing TypeSpring Type (In-line)Lift TypeSpring Type (In-line)Lift TypeSwing TypeSwing TypeOthersLift TypeSwing TypeLift TypeSpring Type (In-line)Swing TypeOthers-Swing TypeLift TypeLift TypeSwing TypeSwing TypeSwing TypeSwing TypeLift TypeSwing Type-
                                                                                                                                                              Compatible FluidWater / AirWater / Air / OilWaterWaterWater / OthersWaterWater / Oil / OthersOilWaterWater / Air / Oil / GasWater / Air / OilWaterWater / Air / OilWater / Air / Oil / Gas / OthersWater / Air / OilWater / Air / Oil / GasWater / AirWaterAirWater / Air / OilWater / OilWater / OthersWaterWater / Air / Oil / GasWater / Air / Oil / GasWater / Air / Oil / GasAirWater / OthersWater-Water / Air / Oil / GasWater / Air / Oil / GasWater / Air / Oil / GasWater / Air / Oil / GasWater / Air / Oil / GasWater / Air / Oil / GasWater / Air / OilWater / Air / Oil / GasWater-
                                                                                                                                                              Nominal PressureNo Standard, Others-125125150No Standard, Others10K-10K10K10K10K10K10K20010KNo Standard, Others150No Standard, Others10K20012510K10K10K20KNo Standard, Others12510K-10K20K10K20K10K10K10K16K10K-
                                                                                                                                                              MaterialBrass ~ Stainless SteelStainless Steel CastBronzeBronzeBronzeStainless Steel CastDuctile Cast IronSteelBronzeBronzeBronzeBronzeCast IronStainless SteelStainless SteelStainless Steel CastBrass ~ Stainless SteelBronzeBrassCast IronStainless Steel CastBronzeCast IronDuctile Cast IronStainless Steel CastDuctile Cast IronBrassBronzeCast Iron-Ductile Cast IronDuctile Cast IronDuctile Cast IronDuctile Cast IronStainless Steel CastBronzeCast IronDuctile Cast IronLead-free Copper Alloy-
                                                                                                                                                              Supply Side Connection TypeRc (R)Rc (R)Rc (R)Rc (R)Rc (R)Rc (R)FlangeRc (R)Rc (R)Rc (R)Rc (R)Rc (R)FlangeRc (R)-FlangeRc (R)Rc (R)Rc (R)Rc (R)Rc (R)Rc (R)FlangeFlangeRc (R)FlangeRc (R)Rc (R)Flange-FlangeRc (R)Rc (R)FlangeRc (R)FlangeRc (R)Rc (R)Rc (R)-
                                                                                                                                                              Supply Side Plumbing Thread Nominal1/2B ~ 3/8B1B ~ 3/4B1B ~ 4B1B1B ~ 3/8B1B ~ 3/4B-1/2B ~ 3/8B1B ~ 3/4B1B ~ 3/8B1B ~ 3/4B1B ~ 3/8B-1 1/2B ~ 3/4B--1/2B ~ 3/8B1B ~ 3/8B1/4B ~ 1/81B ~ 3/4B1B ~ 3/4B1B ~ 3/8B--1B ~ 1/2B-1/4B1B ~ 3/8B---1B ~ 3/4B1B ~ 3/4B-1B ~ 3/4B-1B ~ 3/4B1B ~ 3/4B1B ~ 3/4B-
                                                                                                                                                              Supply Side Tube Flange Nominal------1 1/2B ~ 8B-----1 1/2B ~ 10B--1B ~ 3/4B------1 1/2B ~ 6B1B ~ 3/4B-1B ~ 3/4B--1 1/2B ~ 10B-1 1/2B ~ 6B--3B ~ 4B-1B ~ 3/4B----
                                                                                                                                                              Control Side Connection TypeRc (R)-Rc (R)Rc (R)Rc (R)Rc (R)Flange-Rc (R)Rc (R)Rc (R)-FlangeRc (R)-FlangeRc (R)Rc (R)Rc (R)Rc (R)Rc (R)Rc (R)FlangeFlangeRc (R)FlangeRc (R)-Flange-FlangeRc (R)Rc (R)FlangeRc (R)FlangeRc (R)Rc (R)Rc (R)-
                                                                                                                                                              Control Side Plumbing Thread Nominal1/2B ~ 3/8B-1B ~ 4B1B1B ~ 3/8B1B ~ 3/4B--1B ~ 3/4B1B ~ 3/8B1B ~ 3/4B1B ~ 3/8B-1 1/2B ~ 3/4B--1/2B ~ 3/8B1B ~ 3/8B1/4B ~ 1/8B1B ~ 3/4B1B ~ 3/4B1B ~ 3/8B--1B ~ 1/2B-1/4B1B ~ 3/8B---1B ~ 3/4B1B ~ 3/4B-1B ~ 3/4B-1B ~ 3/4B1B ~ 3/4B1B ~ 3/4B-
                                                                                                                                                              Control Side Tube Flange Nominal------1 1/2B ~ 8B-----1 1/2B ~ 10B--1B ~ 3/4B------1 1/2B ~ 6B1B ~ 3/4B-1B ~ 3/4B--1 1/2B ~ 10B-1 1/2B ~ 6B--3B ~ 4B-1B ~ 3/4B----
                                                                                                                                                              Maximum Operating Pressure(MPa)2-1.181.181.62.11.4-1.37 ~ 1.41.41.371.41.41-1.421.37 ~ 1.6211.37-1.20.981.41.42.75211.20.98-1.42.751.372.751.41.41.372.21.4-
                                                                                                                                                              Cracking Pressure(MPa)0.007---------------0.007-0.05-------0.05 ~ 0.3-------------

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