The Pneumatic shut-off butterfly valve can quickly cut off the medium flow in the pipeline. The pneumatic actuator is spring type. It is widely used in the gas waste heat power generation system and steam extraction heat supply steam turbine system as a system safety guarantee. It closes quickly and has low flow resistance.
Pneumatic shut-off butterfly valve
- Quick closing time of 0.3 seconds, emergency cut-off safe and reliable;
- 2, Triple eccentric metal seal structure; confirm the applicable leakage acceptance criterion, test medium, pressure and flow direction for the selected valve;
- Room temperature medium can choose double partial softhearted sealing structure, low cost, reliable sealing;
- Close the end of the buffer,effectively avoid valve inertial impact;
- Can use spring to realize fast, can also use accumulator to realize fast, two forms of the same safe and reliable
Frequently Asked Questions
What should I specify for the pneumatic shutoff action?
State the required opening and closing duty, air-supply conditions and response to loss of supply. Ask for confirmation of the complete valve, actuator and control circuit rather than assuming an action from the shutoff name.
Which butterfly-valve design will be supplied with the actuator?
Request the actual connection, disc geometry, seat and wetted-material specification for the selected assembly. The required service should determine the offered configuration, not a general pneumatic label.
What documents should I request for installation and commissioning?
Ask for the approved assembly drawing, pneumatic and electrical diagrams where applicable, and the selected valve and actuator instructions. Confirm the required operating checks and access before installation.