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Stainless Steel Wafer Dual Check Valve

Stainless Steel Wafer Dual Check Valve

Structural Feature 1.Short structural length,only 1/4~1/8 of that of traditional flanged check valve; 2.Low volume,light weight,only 1/4~1/20 of those of traditional flanged check valve; 3.Quick valve disc closedown,low water hammer pressure; 4.Applicable for and easily installed for vertical or horizontal pipelines; 5.Smooth flow passageway and small fluid resistance; 6.Flexible action and good sealing performance; 7.Narrow valve travel and small closedown impact; 8.Integrated structure,simple and compact,in beautiful shape; 9.Long service life and good reliability.
Product Details

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; 


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.

Technical Data

Stem: Stainless Steel

Spring: Stainless Steel

Seat: EPDM, NBR, Stainless Steel

Size: DN40-DN600mm PN1.0-1.6MPa

Working temperature: -196℃ - +560℃

Body: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel

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.

We welcome all the world customers to contact us for more cooperation.

With our years of technical knowledge and experience,we assure you,

Naibang will be one of your best parters in China.


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