Check Valve is applicable for various pipelines with nominal pressure of PN1.0MPa~42.0 MPa,Class150~2500 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.
End Connection: RF,RTJ, BW
Pressure range: Class150~2500(PN16~PN420)
Body material: carbon steel, stainless steel, alloy steel,bronze
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
Long life span, high reliability.
Easy flow, little flow resistance.
Compact structure, beautiful design.
Can be installed vertically or horizontally.
Quick in closing, small in water hamper.
Quick reaction, good seal performance.
Short in Stroke, small in closing impact.
Short in Length, the face to facet is only 1/4~1/8 of the standard one.
Small in size and light in weight, the weight is only 1/4~1/20 of the normal one.
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 Wafer Lug Dual Plate 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.