High Performance Butterfly Valves use a disc offset from the seat center, hence the name Double Offset.
In this configuration, the disc is eccentric, or offset, from the valve seat. As the disc starts to rotate, it moves away from the seat instead of across it. This design actually uses the line pressure to help give it its seal. This feature allows the use of offset butterfly valves in high‐pressure applications such as ethanol or HVAC. It generally uses PTFE or plastic as its seat material, but metal seats are also available to meet fire‐testing specifications like API 607.
Offset Disc Butterfly Valves are comprised of the following components:
Body
Retainer Plate
Seat
Disc
Stem
Stem Seals
Standard double offset butterfly valves come with a polymer seat, usually PTFE, with a metal backup for fire safety. Metal‐to‐metal seats are also available and may provide a higher sealing quality, and allow slightly higher temperatures.
FEIDA VALVE is the top ranking China double offset butterfly valve manufacture. The annual output of high performance butterfly valve is more than 100,000,000 set.
The API 607 fire safe high performance butterfly valve is also in FEIDA VALVE product range. Our fire safe butterfly valve is certificated by American Petroleum Institute (API) according to API 607 standards.
FEIDA VALVEalso build up a dustless workshop to produce ultra-clean valve for some critical working condition such as nuclear industry, semiconductor industry etc.
In the dustless workshop, FEIDA also produce the food-grade valves. FEIDA food-grade valve is certificated by Food and Drug Administration United States (FDA).
If you are interested in valves, you can contact us directly, email:ethan@feidavalve.com
Varyity type of FEIDA High Performance Butterfly Valve:
ENDs:
high performance butterfly valve lug
high performance butterfly valve semi lug
high performance butterfly valve wafer
high performance butterfly valve flange
high performance butterfly valve fire safe
Pressure:
high performance butterfly valve Class 150
high performance butterfly valve Class 300
high performance butterfly valve Class 600
Operation:
punamtic high performance butterfly valve
electrical high performance butterfly valve
Material:
carbon steel high performance butterfly valve
stainless steel high performance butterfly valve
c95800 high performance butterfly valve
Nickel aluminum bronze high performance butterfly valve
Hastelloy high performance butterfly valve
2205 high performance butterfly valve
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