Bellows Safety Valve

Bellows Safety Valve – Overview

A bellows safety valve is a specialized pressure relief device designed to provide leak-tight sealing in high-pressure, high-temperature, and corrosive environments. Featuring a welded bellows component, it effectively isolates the valve internals from process fluids, preventing leakage and protecting sensitive system components.

Key Design Features

• Welded Bellows Seal
  A corrosion-resistant bellows assembly separates the valve’s stem and spring chamber from the process media, eliminating leakage and enhancing valve longevity.

• Material Construction
  Typically constructed from stainless steel, alloy steel, or other corrosion-resistant alloys to withstand aggressive fluids and extreme temperatures.

• Adjustable Set Pressure
  Precisely calibrated to open at designated pressure thresholds, ensuring reliable overpressure protection.

• Compliance with Standards
  Manufactured according to ASME BPVC Section VIII, API 526, and ISO 4126, meeting stringent safety and performance requirements.

• Connection Options
  Available with flanged, threaded, or welded ends for flexible integration into various piping systems.

Applications

• Chemical and Petrochemical Industries – Suitable for handling toxic, corrosive, or hazardous fluids.

• Power Generation – Ideal for steam systems and high-temperature applications.

• Pharmaceutical and Food Processing – Ensures hygienic operation with zero leakage.

• Oil & Gas – Provides secure pressure relief in aggressive environments.

• Refineries and Processing Plants – Protects critical equipment from overpressure damage.

Advantages

• Leak-Proof Operation – Bellows seal prevents external leakage of process fluids.

• Enhanced Safety – Protects personnel and equipment from exposure to hazardous substances.

• Extended Service Life – Isolation of valve internals reduces corrosion and wear.

• High-Temperature Capability – Performs reliably in extreme thermal conditions.

• Low Maintenance – Simplified design allows easy inspection and servicing.

The bellows safety valve is an essential safety solution for industries requiring stringent leak-tightness and reliable overpressure protection under demanding conditions.