Self Operated Micro Pressure Regulating Valve – Set‑Point Adjustment Guide

4 week ago

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Hangzhou Baoheng Valve Manufacturing Co., Ltd.

3 month

Product details

The Self Operated Micro Pressure Regulating Valve is a spring‑loaded, direct‑acting regulator that maintains a constant downstream pressure or upstream pressure without any external power source. It is specifically designed for very low set points, typically ranging from 0.5 to 10 kPa, making it ideal for gas blanketing, draft control, and laboratory gas distribution. The valve incorporates a large‑area diaphragm sensing element that responds to minute pressure changes with high sensitivity, ensuring that the controlled pressure remains within ±2% of the set point. Its internal parts are made of corrosion‑resistant materials such as 316 stainless steel and Hastelloy, while the body can be supplied in bronze, cast iron, or stainless steel to match the service fluid. This regulator excels in applications where electrical power is unavailable or where explosion‑proof requirements prohibit electronic instruments. In many plants, it works alongside a Temperature Regulating Valve to keep reactor temperatures stable under varying cooling water pressures. As a pure Self‑operated Valve, it requires zero external energy, which significantly reduces operating costs and eliminates the need for control air or electricity. It also functions as a reliable Pressure Control Valve for nitrogen purging systems, protecting storage tanks from vacuum collapse or overpressure. When used in fermentation bioreactors, it maintains the headspace pressure to optimize oxygen transfer and CO₂ removal. The valve’s balanced plug design minimizes the effect of inlet pressure variations on outlet pressure, providing stable regulation even when supply pressure fluctuates. Maintenance is straightforward – the trim cartridge can be replaced in‑line without disconnecting the piping. We offer optional gauge ports and pressure dampeners to reduce pulsation effects. This valve is also compatible with digital monitoring systems when fitted with a pressure transmitter, allowing it to be integrated into an Intelligent Control Valve network for remote supervision. Its compact, lightweight construction facilitates easy installation in tight spaces. With proven reliability in thousands of installations, this regulator is the preferred choice for micro‑pressure control in pharmaceutical, food, and fine chemical industries.

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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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