The ZJHC series pneumatic thin film cut-off valve is designed with a soft sealing structure based on the digestion and absorption of advanced foreign technology, and adopts a pneumatic thin film multi spring actuator. Therefore, it has the characteristics of small and lightweight, and the leakage level can reach GB/T4213-92 VI level. It receives signals from regulating instruments, closes or opens valves, and adjusts process parameters such as pressure, temperature, flow rate, and liquid level in the system. It is suitable for automatic control systems that require tight shut-off and compact installation space.

Structural features:
The sealing surface of the valve core is composed of two parts: polytetrafluoroethylene and metal. Polytetrafluoroethylene plays a sealing role, and the metal part plays a limiting role, ensuring reliable sealing performance.
The operation mode of ZJHC pneumatic thin film cut-off valve can be divided into two types: gas closed and gas open. The air closing type consists of a ZHA type positive acting actuator and valve, while the air opening type consists of a ZHB type negative acting actuator and valve.