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Shanghai Feiyi Valve Co., Ltd. adheres to the business philosophy of "integrity-based and reasonable pricing" to provide customers with high-quality services, wholeheartedly—sincerely—earnestly—serving—you.

I. Overview, Application:

Low-temperature safety valves serve as overpressure protection devices in equipment and pipelines. During the manufacturing process, components are immersed in liquid nitrogen at -196°C for 2 to 6 hours, then removed for natural treatment. This cycle is repeated twice to minimize deformation caused by temperature differences and changes in metallographic structure, enhancing the valve's sealing performance at low temperatures. Valves used for flammable media require anti-static design.

II. Product Parameter Table:

Operating temperature range of low-temperature safety valves: -196°C to +80°C.

Valve materials include: brass, cast steel, carbon steel, stainless steel, chromium-molybdenum steel, etc.

Valve specifications: DN15-DN400.

Pressure: 1.0-32.0 MPa.

Actuation method: manual, automatic.

Standards: National Standard GB HB.

III. Applications:

Low-temperature safety valves and low-temperature valves are widely used in various fields such as chemical industry, papermaking, power generation, liquefied gas, food, pharmaceuticals, mechanical equipment, electronic industry, urban construction, etc.

IV. Ordering Information:

1. Caliber 2. Nominal pressure 3. Set popping pressure 4. Connection method 5. Material 6. Medium used 7. Operating temperature

V. Packaging: Carton, wooden case, gunny sack