-Top mounted eccentric hemispherical valve
-Forged steel floating ball valve
-Forged steel floating ball valve
-Forged steel fixed ball valve
-Side mounted eccentric hemispherical valve
-Side mounted eccentric hemispherical valve
-High performance all welded pipeline ball valve
-American Standard floating ball valve
-American standard fixed ball valve
-American Standard forged steel floating ball valve
-American Standard forged steel floating ball valve
-Wafer type hard seal butterfly valve
-Automatic regulating butterfly valve
-Heavy hammer hydraulic control slow closing check butterfly valve
-Energy storage hydraulic control slow closing check butterfly valve
-Three eccentric flange hard seal butterfly valve
-Stainless steel quick installation butterfly valve
-Stainless steel threaded butterfly valve
-Stainless steel threaded butterfly valve
-ZZVP Self operated micro pressure regulating valve
-ZZWP Self operated temperature regulating valve
-ZZWPE Self operated electronic temperature control valve
-HTS Pneumatic diaphragm regulating valve
-ZMAX Pneumatic diaphragm high pressure angle regulating valve
-ZJHM Pneumatic sleeve regulating valve
-ZMAX Pneumatic diaphragm three-way regulating valve
-ZSHV Pneumatic V-shaped regulating ball valve
-ZJHP Pneumatic diaphragm regulating valve
-CV3000 Pneumatic diaphragm regulating valve
-T661Y Pneumatic feed water regulating valve
-ZDSJ Electric high pressure angle regulating valve
-ZDLQ、X Electronic electric three-way regulating valve
-ZAZP Electric single seat regulating valve
-ZDLM Electronic electric sleeve regulating valve
-ZDLM Electronic electric sleeve regulating valve
-ZDLN Electric two seat regulating valve
-T961Y Electric multi-stage regulating valve
-ZDLPF46 Electric fluorine plastic lined single seat regulating valve
-ZJHPF46 Pneumatic film lined fluorine single seat regulating valve
-ZSHO Start shut-off ball valve
-ZSHW Pneumatic regulating butterfly valve
Your location:Home - Product - Check valves
Nominal pressureDN1.6~DN16.0
Strength test2.4~24.0
Water seal test1.6~16.0
Airtight seal test0.4-0.7
Product overview
Lift and swing check valves are automatically opened and closed by the force generated by the flow of the pipeline medium itself, belonging to an automatic valve. Check valve is used in pipeline system, and its main function is to prevent medium backflow and reverse rotation of pump and its driving motor. And the discharge of medium in the container. It is applicable to water, oil and steam media in various fields.
Product features
The material selection is exquisite, in line with relevant domestic and foreign standards, and the overall quality of the material is high.
The matching of sealing pairs is reasonable. The sealing surface of valve disc and valve seat is made of iron-based alloy or Stellite cobalt based cemented carbide, with good wear resistance, high temperature resistance, corrosion resistance, scratch resistance and long service life.
Various piping flange standards and flange sealing types can be adopted to meet various engineering needs and user requirements.
The valve body materials are complete, and the gaskets can be reasonably selected according to the actual working conditions or user requirements. It can be applied to various pressure, temperature and medium conditions.
Executive standard
Design standard:GB 12235
Structure length:GB 12221 JB7745
Connecting flange:JB 79
Test inspection:GB/T 13927 JB/T 9092