High Range Self Acting Pressure Valve – Range Spring Selection and Installation

4 week ago

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Hangzhou Baoheng Valve Manufacturing Co., Ltd.

3 month

Product details

The Self Operated Micro Pressure Valve is a dedicated, ultra‑low‑pressure regulator that maintains a precise set point between 0.1 and 5 kPa, primarily used for critical applications such as medical gas distribution, cleanroom pressurization, and environmental chamber control. Unlike its “regulating” counterpart, this valve focuses on fast response and minimal pressure overshoot, making it ideal for dynamic load conditions. Its construction features a large‑area, chemical‑resistant diaphragm that provides excellent sensitivity, and a balanced poppet design that minimizes hysteresis. The body is available in aluminum, brass, or 316 stainless steel, with BSP or NPT connections for easy integration. This valve operates without any external power, relying solely on the force balance between the spring and the downstream pressure. In hospital piped gas systems, it acts as a reliable Pressure Control Valve for oxygen and nitrous oxide lines, ensuring patient safety. In pharmaceutical cleanrooms, it maintains the room pressure slightly above atmospheric to prevent contamination ingress. When used in conjunction with a Temperature Regulating Valve in a climate‑controlled storage area, it helps stabilize both pressure and temperature. As a self‑contained Self‑operated Valve, it reduces installation costs and eliminates the need for pneumatic tubing or electrical cabling. Its soft elastomer seat ensures bubble‑tight shut‑off, preventing any backflow. The valve also supports a remote vent option for applications where the reference pressure must be adjusted externally. Regular maintenance is simple – the diaphragm and seal kit can be replaced in minutes without removing the valve body from the pipeline. For integration into plant‑wide control systems, an optional pressure transmitter can be fitted, transforming it into a sensor‑equipped unit that feeds into an Intelligent Control Valve supervisory platform. This valve is also explosion‑proof by nature, as it contains no electrical components, making it suitable for flammable atmospheres. Its low‑dead‑band characteristic ensures stable control even with fluctuating inlet pressures. With thousands of units in operation worldwide, this micro pressure valve has proven its value in semiconductor fabrication, research laboratories, and aerospace ground support equipment.

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Hangzhou Baoheng Valve Manufacturing Co., Ltd.

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3 month

Main Product: Pneumatic Diaphragm PTFE Lined Control Valve, Electric Intelligent Temperature & Flow Control Valve, Self-operated Pressure & Temperature Regulating Valve, Pneumatic V-port PTFE Lined Control Ball Valve, Pneumatic Triple Eccentric Rubber Lined Control Butterfly Valve , Pneumatic O-port Cut-off & Control Ball Valve

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