Pneumatic Globe Valve

Pneumatic globe valve is a valve that uses compressed air as the power source and drives the valve disc to rise and fall to open and close the medium through a pneumatic actuator. It has both fast response and high sealing performance, and is suitable for emergency shutoff and flow control in industrial scenarios such as petroleum, chemical industry, and power.

Maintenance requirements:

Check the wear of the diaphragm or piston seal every 6 months, and the replacement cycle of the hard seal valve seat is 3 to 5 years.
The air source needs to be equipped with a filter, and the water in the air tank should be discharged regularly to keep the air path dry.

 

Pneumatic Globe Valve

 

Advantages:

Reliable sealing: no sliding friction on the sealing surface, leakage level ≤10 ppm (soft seal) or ANSI VI level (hard seal).
‌High pressure and high temperature resistance: hard seal models can withstand pressure up to PN40 (Class 600), and are suitable for temperatures of -29℃~+550℃ (such as chromium-molybdenum-vanadium steel valve bodies for power stations).

‌Applications:

Energy systems: emergency shut-off of high-temperature steam (≤550℃) or thermal oil pipelines.
‌Chemical processes: flow control of highly corrosive media (such as hydrochloric acid and sulfuric acid), PTFE-lined valve bodies can enhance corrosion resistance.
‌Clean environment: food-grade stainless steel polished valve bodies (Ra≤0.8 μm) are used for aseptic fluid delivery.

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