Products Details

The pneumatic flanged butterfly valve is a valve driven by a pneumatic actuator, which is widely used in various industrial fields. The following are some details about the pneumatic flanged butterfly valve:

Structure and working principle:
The pneumatic flanged butterfly valve is mainly composed of a pneumatic actuator and a butterfly valve. The butterfly valve's circular plate rotates around the valve shaft to realize the opening and closing of the valve. The valve is mainly used to cut off or regulate the flow of the medium, and can also be designed to have a regulating or throttling function.

Model and Specification:

Models: such as D641F and D641X.
Nominal diameter: from DN25 to DN1200 mm.
Nominal pressure: such as PN0.6 ~ 1.0MPa, 1.6MPa, etc.
Applicable media:
The pneumatic flanged butterfly valve is suitable for various media, such as gypsum slurry, limestone slurry, recycled water, process water, waste water, etc. In addition, it can also be used to handle other low pressure media and large diameter pipes.

Materials:

Body material: such as WCB, 304, 316, UPVC, etc.
Butterfly plate material: 304, 316, 316L, nylon plate, aluminum bronze, nickel-plated cast iron ball, etc.
Sealing material: NBR, EPDM, PTFE, etc.
Temperature range:

Applicable temperature: such as ≤100℃.
Working temperature: such as NBR: -30 ~ 80 ℃; EPDM: -30 ~ 120 ℃;  PTFE: -30 ~ 130 ℃.
Connection mode:
Pneumatic flanged butterfly valves are usually connected with flanges, in line with GB/T9113.1-2000, GB/T9115.1-2000 and other standards.

Features:

Compact and lightweight: easy to remove and maintain, it can be installed anywhere.
Simple operation: simple structure, small operating torque, 90° rotation quickly open.
Streamlined runner: with a straight runner, good adjustment performance.
Pin-less connection: The pin-less structure is used to connect the butterfly plate and the valve stem to avoid internal leakage.
Spherical plate design: improve the sealing performance, extend the service life of the valve, open and close more than 50,000 times without leakage.
Technical parameters:

Driving mode: The pneumatic actuator can be double acting or single acting.
Pneumatic accessories: such as backflush solenoid valve, limit switch, air filter pressure reducing valve, electrical positioner, handwheel mechanism, etc.