Pneumatic ball valve is a threaded valve driven by a pneumatic actuator, the main components include:
Body: Usually made of cast steel, stainless steel or brass, both ends are internal or external threads (such as NPT, BSPT, G thread) for connection with pipe threads.
Ball: The ball with a through hole is used as a opening and closing part, rotated 90° to achieve on-off, and the surface can be hardened to enhance wear resistance.
Seal: commonly used PTFE, PPL or metal hard seal, adapt to different media (corrosive, high temperature).
Valve stem: connected with the pneumatic actuator, transfer torque to drive the ball to rotate, using anti-blowout design.
Pneumatic actuators: Most of them are compact rack and pinion type or fork type structure, supporting single action (spring return) or double action control.
Typical application scenarios
Heating, Ventilation and Air conditioning (HVAC) : Control of hot and cold water circulation systems.
Small industrial equipment: compressed air, hydraulic tubing road off.
Laboratory system: precise control of reagents and gas pipelines.
Fire protection system: spray pipe opening and closing.
Food and beverage: sanitary threaded connection (e.g. Tri-Clamp interface).
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