Negative pressure safety valve is sanitary stainless steel valve, its safety design makes it can protect the equipment, so it is installed in the discharge pressure of the circuit, the pipeline, pumps, devices, storage tanks and other security play. Widely used in food, beverage, dairy products, pharmaceuticals, beer and other industries.
Negative pressure relief valve works â—Ž Negative pressure relief valve is adjusted by adjusting the spring nut to calibrate a specific pressure. Calibration pressure is the maximum safety pressure to avoid equipment damage. Under normal working pressure, the valve is closed; when the system pressure exceeds the calibration pressure, the valve opens. The pressure in the piping system is released, so as to protect the piping and equipment. â—Ž Safety valve is a kind of special valve, which has been rigorously checked at the factory. However, in order to make the valve more suitable for actual operating conditions, the valve should be calibrated on site whenever possible. It adds a pneumatic opening device for CIP cleaning of safety valves and their piping.
Negative pressure safety valve technology options ◎ Specifications DN25-1 "to DN65-3" ◎ pressure operating range (change the spring) ◎ welding, clamp, thread, flange connection (mm or inches) ◎ maximum working pressure: 10bar ◎ work Temperature: -10 ℃ to 120 ℃ (140 ℃ for short term or disinfection) ◎ Compressed air pressure: 5bar-7bar ◎ Air connection: R1 / 8 "(BSP) ◎ Material contact parts: 1.4404 / AISI 316L 1.4301 / AISI 304 ◎ Other stainless steel parts: 1.4301 / AISI 304 ◎ Inner surface contact products: Ra≤0.8μm Electropolishing ◎ Outer surface treatment: Polishing ◎ Seals: EPDM meets FDA 17.2600
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