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...
1/2" ~ 48"
(DN15 ~ DN1200)
Class 150 ~ 2500
-196℃ ~ 560℃
Water, Steam, Oil products, Nitric acid, Acetic acid
Carbon steel, Stainless steel, Alloy steel, Bronze
RF, RTJ, RW
Main Parameter Specification
Face to Face
API594, API6D, JB/T8937
API594, API6D JB/T8937
JB/T74-90, GB/T13402, GB/T9112-9124, HG/T20592-20635, SH3406, ANSI B16.5, API604, ASME B 16.47, DIN2543-2548
JB/T74, GB/T9124, HG20604-20625, ASME B16.34, DIN2401,SH3406
It is opened or closed by the valve clack moving to-and-fro through the valve body guiding axle under the spring effect.
The valve body passageway is designed in a wing-shaped streamline type, allowing the medium to flow through the passageway rapidly and steadily with no noise.
It can be installed on horizontal and vertical pipelines.
Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of soft seat 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.