Ductile Iron Wafer Dual Plate Check Valve /DN40-DN900

Place of Origin: China
Brand Name: HRM
Model Number: HRM-WFCHV-0028
Certification: CE/ISO9001
Minimum Order Quantity: 10PCS
Price: $7.5+
Packaging Details: Plywood case
Delivery Time: Generally in 15-35 days
Payment Terms: T/T Or L/C
Supply Ability: 120000pcs(DN40-DN900)/Year
Specifications: Description:  Design & Manufacturer: API609, MSS SP-67,BS5155.ANSI B16.1, etc. Face to Face: API609,MSS SP-67,BS5155,BS EN558, ISO5752,API594 Test & Inspecting:API598,BS EN12266-1,DIN3230,BS5155 Flange Drilling:DIN2501,ANSI125/150,AS2129,BS4504,BS 10D&E, JIS10K Size:DN40(1.5”)-DN900(36”) Nominal Pressure:PN10/PN16 Working Temperature:-45℃--+150℃ Suitable Mediums:Fresh water, Sewage, Sea water, Air, Oils, Acids, Alkalis,Salts,etc. Applications:  Water Supply  Sewage Treatment Building Trades Power Industry Petroleum & Chemical Metallurgy Industry Table 1:  Part Name & Materials’ Choice
Part Name Materials’ Choice
1 2 3 4 5 6 7
Body  CI DI WCB SS Duplex SS Al-Bronze
Disc DI+Painted SS Duplex SS Al-Bronze
Seat Rubber (Detailed in Table 3)
Stem SS SS Duplex SS Monel
Detailed  Standards of The Materials in the below table (Table 2)
Table 2 : Detailed Standards of The Materials
Code Materials ASTM DIN EN
2 DI ASTM A536 65-45-12 GGG40 BS EN-GJS-400
3 WCB ASTM A216 WCB GS-C25 BS EN10213-2 1.0619
4 SS ASTM A276 410/431/304/316ASTM A351 CF8/CF8M/CF3M 1.4006/1.4057/1.4301/1.44011.4308/1.4408/-- BS970 410 S21/431 S29/304 S15/316 S16BS EN10213-4 1.4308/1.4408 /
5 Duplex SS      
6 Al-Bronze ASTM B148 C95400/C95500/C95800 CuAl10Ni BS 1400 AB2
7 Monel      
Table 3: Detailed Materials of Rubber Seat
Material Applicable Medium Feature Applicable Temp(℃)
Natural rubber(X1) Fresh water, Sea water,Salt,Strong base,Weak base, Food High elasticity -20~+85℃
Hypalon(X2) Fresh water, Sea water,Strong base, Weak base, Weak acid, Alcohol Oxidation resistant -30~+120℃Short time +140℃
EPDM(X3) Fresh water, Sea water,Salt, Steam Aging resistant -25~+110℃Short time +120℃
Neoprene(X4) Fresh water, Sea water,Salt, Strong base, Weak base, Weak acid Light-proof, Aging resistant -25~+110℃Short time +120℃
NBR(X5) Fresh water,Salt, Strong base, Natural gas, Oil Oil resistant -20~+100℃Short time +110℃
FKM(X7) Fresh water, Sea water,Salt,Weak base,Weak acid, Natural gas, Oil, Food. High temperature resistant, Corrosion resistant -20~+150℃Short time +180℃
Color of Painting: RAL color code Competitive Advantage: Tag: dual plate, check valve, wafer, Ductile iron