extended stem butterfly valve
Double Flange Butterfly Valve with extension spindle
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.
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Working Pressure |
10 bar / 16 bar |
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Testing Pressure |
Shell: 1.5 times rated pressure, Seat: 1.1 times rated pressure. |
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Working Temperature |
-10°C to 80°C (NBR) -10°C to 120°C (EPDM) |
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Suitable Media |
Water, Oil and gas. |
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Parts |
Materials |
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Body |
Cast iron, ductile iron, carbon steel |
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Disc |
Nickel ductile iron / Al bronze / Stainless steel |
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Seat |
EPDM / NBR / VITON / PTFE |
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Stem |
Stainless steel / Carbon steel |
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Bushing |
PTFE |
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“O” ring |
PTFE |
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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.
