Naf Type Check Valve

Structural Feature Short structural length,only 1/4-1/8 of that of traditional flanged check valve; Low volume,light weight,only 1/4-1/20 of those of traditional flanged check valve; Quick valve disc closedown,low water hammer pressure; Applicable for and easily installed for vertical or...

Product Details


Check Valve is applicable for various pipelines with nominal pressure of PN1.0MPa-42.0 MPa,Class 150-2500 and nominal diameter of DN15-1200mm, NPS1/2-48 and working temperature of -196-540℃ to be used for protecting from medium back flowing. The different materials selection can apply to the medium involving water, steam, oils, nitric acid, strong oxidizing medium and urea etc.

Product Range:

Nominal diameter: 2"~24"(DN50~DN600)

Pressure range: Class 150~2500(PN16~PN150)

Working temperature: -196℃~+560℃

Body material: carbon steel, stainless steel, alloy steel,bronze

End connection: RF,RTJ,BW

Main Parameter Specification:

Inspection and test: API598,JB/T9092;

Design and manufacture: API594,API 6D,JB/TB8937;

Face to face and end to end: API594,API6D,DIN3202,JB/T8937;

Pressure-temperature rating: ASME B16.34,DIN2410,GB/T9124,HG20625,SH3406,JB/T74;

Pipe flange: JB/T74~90,JB/T9112~9124,HG20592~20635,SH3406,ASME B16.5,DIN2543~2548,GB/T13402,API605,ASME B16.47. 


Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of naf type check valve in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.