body : ASTM A216 WCB+NEOPRENE
Disc: BS1400 AB2
Seat: SOFT NEOPRENE
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 horizontal pipelines;
Smooth flow passageway and small fluid resistance;
Flexible action and good sealing performance;
Narrow valve travel and small closedown impact;
Integrated structure,simple and compact,in beautiful shape;
Long service life and good reliability.
Main Parameter Specification
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;
Inspection and test: API598,JB/T9092;
Pipe flange: JB/T74~90,JB/T9112-9124,HG20592~20635,SH3406,ASME B16.5,DIN2543~2548,GB/T13402,API605,ASME B16.47.
Product Range
Body material: carbon steel, stainless steel, alloy steel,bronze
Nominal diameter:1.5″~60″(DN40~DN1500)
End Connection: RF,RTJ, BW
Pressure range: Class150~2500(PN16~PN420)
Working temperature:-196℃~+560℃