Safety Relief Valve Manufacturer in India
Speciality Valve is a leading Safety Relief Valve Manufacturer in India, supplying valves designed to protect equipment and pipelines from overpressure conditions. Built to ASME, API, and ISO standards, our safety relief valves are available in spring-loaded and pilot-operated designs for steam, liquid, gas, and cryogenic applications.
Function & Working
When system pressure exceeds the set limit, a safety relief valve automatically opens to release excess pressure. Once the system returns to a safe level, the valve reseats to prevent further leakage. These valves provide reliable protection for boilers, pipelines, storage tanks, compressors, and process systems.
Advantages
Accurate pressure relief with quick response
Available in conventional, balanced, and pilot-operated designs
Suitable for low, medium, and high-pressure ranges
Handles liquids, gases, vapors, and steam
Designed for safe operation in critical services
Types Offered
Conventional Spring-Loaded Safety Relief Valve
Balanced Bellows Safety Valve
Pilot-Operated Safety Relief Valve
Steam Safety Valve
Liquid Safety Relief Valve
Cryogenic Safety Relief Valve
Industries Served
Power Generation (Boilers, Turbines, Steam Systems)
Oil & Gas, Petrochemicals, Refineries
Marine & Offshore Applications
Water Treatment & Desalination Plants
Chemical & Fertilizer Industries
LNG & Cryogenic Facilities
Technical Specifications
Design Standards: ASME Sec. VIII, API 520/526, ISO 4126
Size Range: DN15 – DN600 (½″ – 24″)
Pressure Ratings: Class 150 – 2500 / PN10 – PN400
Temperature Range: –196 °C to +500 °C
End Connections: Flanged (RF/RTJ), Threaded (NPT/BSP), Butt Weld (BW), Socket Weld (SW)
Operation Types: Spring-loaded, Balanced Bellows, Pilot-Operated
Body & Trim Material Options
Material | Grade / Standard | Application Use |
---|---|---|
Cast Iron | ASTM A126 | Low-pressure steam and water |
Ductile Iron | ASTM A536 | Industrial water and air systems |
Carbon Steel | ASTM A216 WCB, A352 LCB/LCC | General service, low-temperature duty |
Stainless Steel | ASTM A182 F304, F316, F316L | Steam, gas, and corrosive applications |
Duplex Stainless Steel | ASTM A890 Gr. 4A (2205) | Offshore, seawater, and chloride service |
Super Duplex Stainless | ASTM A890 Gr. 5A (2507) | Desalination, marine, aggressive fluids |
Aluminium Bronze | ASTM B148 C95800 (AB2) | Marine and seawater service |
Titanium | ASTM B367 Gr. C2 | Seawater cooling, desalination plants |
Hastelloy | ASTM B622 C276 | Highly corrosive chemical media |
Monel | ASTM B127 400 / K-500 | Marine and brine services |
Inconel | ASTM B564 625 / 825 | High temperature, aggressive environments |