Double offset butterfly valves have a unique design that gives them several advantages over traditional inline butterfly valves. The disc in a double offset butterfly valve pivots around two shafts that are offset from the centerline of the pipe. This offset shaft design helps improve performance in key ways.

The offset design requires lower torque for valve operation since the disc can pivot smoothly. This allows double offset butterfly valves to use smaller and less expensive actuators compared to inline butterfly valves of the same size.

The offset shaft design also helps center the disc and distribute stress more evenly during cycling. This extends the cycle life of double offset butterfly valves, allowing the high performance butterfly valve to achieve up to 1,000,000 open-close cycles during their service life. This makes them suitable for frequent on/off applications and process control.

Proper lubrication and maintenance of component parts like seals, bearings and gearboxes can maximize the cycle life of double offset butterfly valves. Regular inspection and replacement of worn parts is recommended.

In addition, the streamlined disc shape results in lower friction loss and higher flow efficiency. The smooth transition of the offset disc during opening and closing also provides a steadier flow characteristic compared to inline butterfly valves.

In summary, the unique offset shaft design of double offset butterfly valves gives them advantages like lower torque requirements, higher cycle life, tighter shut-off capability, and better flow efficiency. Combined with benefits like easier maintenance and more space savings, double offset butterfly valves are well suited for flow control and on/off applications in a variety of industries.

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 VALVE also 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

lug double offset butterfly valve

semi lug double offset butterfly valve

wafer double offset butterfly valve

flange double offset butterfly valve

Function：

Fire safe high performance butterfly valve / double offset butterfly valve

PSA high performance butterfly valve / double offset butterfly valve

VPSA high performance butterfly valve / double offset butterfly valve

Food grade high performance butterfly valve / double offset butterfly valve

Air separation high performance butterfly valve / double offset butterfly valve

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

duplex stainless steel high performance butterfly valve