Upper flange customized; side flange could be EN1092/DIN/BS PN10/16 ANSI125/150LB; sealing could be NBR EPDM PTFE metal etc
Detailed
Double Flange Bare stem Butterfly Valve
Size: 2”-48” / 40mm – 1200 mm
Design standard: API 609, BS EN 593, GB T12238.
Face-to-Face dimension: API 609, BS 5155, ISO 5752.
Flange Drilling: ANSI B 16.1, BS4504, DIN PN 10 / PN 16, JIS 5K, 10K, 16K.
Test: API 598.
Working Pressure
10 bar / 16 bar
Testing Pressure
Shell: 1.5 times rated pressure,
Seat: 1.1 times rated pressure.
Working Temperature
-10°C to 80°C (NBR)
-10°C to 120°C (EPDM)
Suitable Media
Water, Oil and gas.
Parts
Materials
Body
Cast iron, ductile iron, carbon steel
Disc
Nickel ductile iron / Al bronze / Stainless steel
Seat
EPDM / NBR / VITON / PTFE
Stem
Stainless steel / Carbon steel
Bushing
PTFE
“O” ring
PTFE
Worm gearbox
Cast iron / Ductile iron
This kind of butterfly valve is widely utilized in foodstuff, pharmacy, chemical industry etc. and industrial environmental protection, water treatment, high building, water supply and drain tubing line open or close or adjusting medium.
