Imported bellows-type back-pressure balanced safety valve

Release date:

2018-10-23

The imported bellows‑type back‑pressure‑balanced safety valve is a pressure‑resistant device designed for use in pipelines and vessels handling toxic, hazardous, flammable, or explosive media as an overpressure protection system. It employs a formed stainless‑steel bellows to ensure zero external leakage of the process medium while simultaneously balancing the back pressure at the safety valve outlet, thereby maintaining the accuracy of the set pressure.

Product Features:

Technical Specification for Basic Design: GB/T 12243

Test: GB/T 12242

Size range: DN20–DN250

Pressure rating: 0.05–4.0 MPa

Housing materials: carbon steel, stainless steel, Hastelloy, Monel alloy

Applicable media: gases, liquids

Operating mode: Automatic. Design features: Stainless steel corrugated pipe design ensures zero external leakage of the medium.

Balance the back pressure at the outlet of the safety valve to ensure the accuracy of the set pressure.

The set pressure deviation is small, as low as ±3%;

Closing pressure differential ≤ 15%;

High-quality spring steel is selected to ensure the spring’s longevity and stability.