Alloy Steel Wafer Double Disc Check Valve
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.
Stem: Stainless Steel
Spring: Stainless Steel
Seat: EPDM, NBR, Stainless Steel
Size: DN40-DN600mm PN1.0-1.6MPa
Body: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel
Flange Connection: DIN, ANSI, BS, JIS, UNIVERSAL FLANGE
Disc: Ductile Iron with Nickel Coating, Ductile Iron with Nylon Coating, Stainless Stee 304/316l, Alu-Bronze
1. Long life span, high reliability.
2. Easy flow, little flow resistance.
3. Compact structure, beautiful design.
4. Can be installed vertically or horizontally.
5. Quick in closing, small in water hamper.
6. Quick reaction, good seal performance.
7. Short in Stroke, small in closing impact.
8. Short in Length, the face to facet is only 1/4~1/8 of the standard one.
9. Small in size and light in weight, the weight is only 1/4~1/20 of the normal one.