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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.
Days to Ship
  • All
  • Same day
  • 4 Day(s) or Less
  • 5 Day(s) or Less
  • 6 Day(s) or Less
  • 7 Day(s) or Less
  • 8 Day(s) or Less
  • 9 Day(s) or Less
  • 12 Day(s) or Less
  • 13 Day(s) or Less
  • 14 Day(s) or Less
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Brand
Product Series
Days to Ship
Applicable Fluid
Type
Material
Max. Operating Pressure(MPa)
Nominal Pressure
Supply Side, Connection Type
Supply Side, Plumbing Thread Nominal
Control Side, Connection Type
Control Side, Plumbing Thread Nominal
Supply Side, Tube Flange Nominal
Control Side, Tube Flange Nominal
Cracking Pressure(MPa)

    Straight Type SM Type JIS10K 

      Straight SMC Type JIS10K 

        Straight Type SM Type JIS20K 

          CS-1USN Type Check Valve (for Cold/Hot Water)

            CS-2USN Type Check Valve (for Cold/Hot Water)

              CS-3SSN, Check Valve (for Cold Water / Hot Water)

                CS-4N Type Check Valve with Expansion/Contraction Pipe (for Cold/Hot Water)

                  CS-7N Type Check Valve (for Cold/Hot Water)

                    Threaded SMG Type 10K Core Built-in Goods

                      Threaded SMG Type 10 K Screw-in

                        Straight Type SMF Model JIS10K Model

                        Brand

                        ISHIZAKI CO

                        ISHIZAKI CO

                        ISHIZAKI CO

                        VENN

                        VENN

                        VENN

                        VENN

                        VENN

                        ISHIZAKI CO

                        ISHIZAKI CO

                        ISHIZAKI CO

                        Product Series

                        Straight Type SM Type JIS10K 

                        Straight SMC Type JIS10K 

                        Straight Type SM Type JIS20K 

                        CS-1USN Type Check Valve (for Cold/Hot Water)

                        CS-2USN Type Check Valve (for Cold/Hot Water)

                        CS-3SSN, Check Valve (for Cold Water / Hot Water)

                        CS-4N Type Check Valve with Expansion/Contraction Pipe (for Cold/Hot Water)

                        CS-7N Type Check Valve (for Cold/Hot Water)

                        Threaded SMG Type 10K Core Built-in Goods

                        Threaded SMG Type 10 K Screw-in

                        Straight Type SMF Model JIS10K Model

                        Days to Ship 6 Day(s) or more 6 Day(s) or more 13 Day(s) or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more 7 Day(s) or more 12 Day(s) or more 13 Day(s) or more
                        Applicable FluidWaterWaterWaterWaterWaterWaterWaterWater / OthersWaterWaterWater
                        TypeOthersOthersOthersOthersOthersOthersOthersOthersOthersOthersOthers
                        MaterialCast IronCast IronCast IronBronzeBronzeBronzeBronzeBronzeBrassBrassCast Iron
                        Max. Operating Pressure(MPa)0.980.981.96111110.980.980.98
                        Nominal Pressure10K10K20KNo Standard, OthersNo Standard, OthersNo Standard, OthersNo Standard, OthersNo Standard, Others10K10K10K
                        Supply Side, Connection TypeFlangeFlangeFlangeGGRc (R)GRc (R)Rc (R)Rc (R)Flange
                        Supply Side, Plumbing Thread Nominal---1B1B3/4B1B1B ~ 3/4B1B ~ 1 1/4B1 1/4B-
                        Control Side, Connection TypeFlangeFlangeFlangeRc (R)Rc (R)Rc (R)Rc (R)Rc (R)Rc (R)Rc (R)Flange
                        Control Side, Plumbing Thread Nominal---3/4B3/4B3/4B3/4B1B ~ 3/4B1B ~ 1 1/4B1 1/4B-
                        Supply Side, Tube Flange Nominal1 1/2B ~ 6B1 1/2B ~ 10B1 1/2B ~ 6B-------1B ~ 1 1/4B
                        Control Side, Tube Flange Nominal1 1/2B ~ 6B1 1/2B ~ 10B1 1/2B ~ 6B-------1B ~ 1 1/4B
                        Cracking Pressure(MPa)-----------

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