Ductile Iron Double Flange Butterfly Valve With Pin/ DN50-DN2000

Place of Origin: China
Brand Name: HRM
Model Number: HRM-BFV-0019
Certification: CE/ISO9001
Minimum Order Quantity: 10 PCS
Price: $21+
Packaging Details: Plywood case
Delivery Time: Generally in 15-45 days
Payment Terms: T/T Or L/C
Supply Ability: 1000pcs(DN1400-DN2000)-120000pcs(DN50-DN1200)/Year
Description: Design & Manufacturer: BS5155,BS EN593., etc. Face to Face:BS5155,BS EN558, ISO5752 Top Flange Drilling:ISO5211 Test & Inspecting:API598,BS EN12266-1,DIN3230,BS5155 Flange Drilling:DIN2501,ANSI125/150,BS4504,BS 10D&E, JIS10K Size:DN50(2”)-DN2000(80”) Nominal Pressure:PN6/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 Specifications:  Table 1:  Part Name & Materials Choice
Part Name Materials’ Choice
1 2 3 4 5 6 7
Body DI WCB SS Duplex SS Al-Bronze
Disc DI SS Al-Bronze
Seat Rubber & PTFE(Detailed in Table 3)
Stem 45# SS
Detailed  Standards of The Materials in the below table (Table 2)
Table 2 : Detailed Standards of The Materials
Code Materials ASTM DIN EN
1 DI ASTM A536 65-45-12 GGG40 BS EN-GJS-400
2 WCB ASTM A216 WCB GS-C25 BS EN10213-2 1.0619
3 SS ASTM A276 410/431/304/316  ASTM A351 CF8/CF8M/CF3M 1.4006/1.4057/1.4301/1.4401 1.4308/1.4408/1.4404 BS970 410 S21/  431 S29/304 S15/316 S16  BS EN10213-4 1.4308/1.4408 /1.4404
4 Al-Bronze ASTM B148 C95400/  C95500/C95800 CuAl10Ni BS 1400 AB2
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℃
PTFE  (Only suitable for  DN50-DN200) Fresh water, Sea water,  Salt,Weak base,  Weak acid, Natural gas, Oil, Food. High temperature resistant,Corrosion resistant -10~+180℃
Table 4: Type of Operation
Driving Type
Lever  DN50-DN200 Gear Box  DN50-DN2000 Pneumatic  DN50-DN2000 Electric  DN50-DN2000
Note:  *Generally DN50-DN200 with lever operation, More than DN200 will be with Gear Box.  *All sizes can be with gear box or electric operator or pneumatic according to the clients’ requirements. Color of Painting: RAL color or Others as your requirements  General Painting Color in The Stocks:  RAL5015/5017/5005/5010/2004,etc.  Black/Green/Red/Dark Green/Gray Tag: Nodular cast-iron Valve, Ductile Iron Double flange Butterfly Valve, Concentric Type Butterfly Valve