Buttweld End Double Disc Check Valve

Standard: GB
Size: 1/2" - 48"
Pressure range: Class 150 - 2500
Working temperature: -196℃ - +560℃
Body material: Carbon steel, Stainless steel, Alloy steel, Bronze
Suitable medium: Water, Steam, Oil products, Nitric acid, Acetic acid

Product Details


Check Valve is applicable for various pipelines with nominal pressure of PN1.0MPa-42.0 MPa, Class150-500 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.

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.

Standards Compliance

Design and Manufacture: API 599, API 6D

Face to Face (End to End): ANSI B 16.10

Flanged connection: ANSI B16.5

Test and Inspection: API 598, API 6D

Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of buttweld end double disc 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.