Pneumatic butterfly valve single and double action pneumatic head

Pneumatic butterfly valve single and double action pneumatic head

The price of pneumatic butterfly valve is higher than that of manual butterfly valve, because the cost of pneumatic head is higher than that of handle and turbine head under the same valve body parameters. So the main factor affecting the market price of pneumatic butterfly valve is pneumatic head.

Single-acting pneumatic head is spring reset, generally used in dangerous conditions, such as can transport flammable gas or flammable liquid. In case of emergency, the single-acting pneumatic actuator can automatically reset to minimize the danger. While the double - acting cylinder reset, can only remain in situ.

Generally, the allowable range is 0.3-0.8mpa. This requirement for air source pressure can only be higher than this, and cannot be lower than this. In order to ensure the stability of air pressure, pressure relief valve is used.

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