Wafer Lug Dual Plate Check Valve
Overview
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.
Product Range
End Connection: RF,RTJ, BW
Nominal diameter:1.5"~60"(DN40~DN1500)
Pressure range: Class150~2500(PN16~PN420)
Working temperature:-196℃~+560℃
Body material: carbon steel, stainless steel, alloy steel,bronze
Standards
Manufacture Standard | Face to Face | Flange Drilling | Pressure-Temperature Class | Test Standard |
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 | API598 |
Structural Feature
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.
Main Feature
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.