Safety Valve Manufacturer in India
Speciality Valve is a Safety Valve Manufacturer in India known for engineering precision-built valves that protect systems and equipment from overpressure. Our valves are manufactured as per ASME, API, and ISO standards and are available in spring-loaded and pilot-operated designs suitable for steam, gas, liquid, and cryogenic applications. Each valve is tested to ensure consistent pressure relief performance and reliable reseating under critical operating conditions.
Function & Working
A safety valve operates automatically to prevent system overpressure. When internal pressure exceeds the pre-set limit, the valve opens to release excess pressure and immediately reseats once normal conditions are restored. This mechanism ensures complete system protection and prevents equipment damage in boilers, pressure vessels, tanks, and process pipelines.
Speciality Valve designs both spring-loaded and pilot-operated safety valves that deliver precise control and repeatable performance across a wide range of process conditions.
Advantages
Accurate and repeatable pressure relief performance
Fast response to pressure surge or system upsets
Available in conventional, balanced bellows, and pilot-operated models
Handles gas, vapor, liquid, and steam media
Suitable for critical and high-pressure industrial systems
Engineered for tight shut-off and corrosion resistance
Types Offered
Conventional Spring-Loaded Safety 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 and Gas, Petrochemical, and Refining Industries
Water Treatment and Desalination Plants
Marine and Offshore Applications
Chemical and Fertilizer Processing
Cryogenic and LNG Storage Systems
HVAC and District Heating Networks
Technical Specifications
Design Standards: ASME Section VIII, API 520/526, ISO 4126
Testing Standards: API 527, EN 12266-1
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 and Trim Material Options
| Material | Grade / Standard | Application Use |
|---|---|---|
| Cast Iron | ASTM A126 | Low-pressure steam and water service |
| Ductile Iron | ASTM A536 | Industrial air and water service |
| Carbon Steel | ASTM A216 WCB / A352 LCB / LCC | General industrial and low-temperature duty |
| Stainless Steel | ASTM A182 F304 / F316 / F316L | Steam, gas, and corrosive fluid applications |
| Duplex Stainless Steel | ASTM A890 Gr. 4A (2205) | Offshore, seawater, and chloride-rich environments |
| Super Duplex Stainless Steel | ASTM A890 Gr. 5A (2507) | Desalination and marine applications |
| Aluminium Bronze | ASTM B148 C95800 (AB2) | Marine and seawater cooling systems |
| Titanium | ASTM B367 Gr. C2 | Seawater and desalination plants |
| Hastelloy | ASTM B622 C276 | Highly corrosive chemical and acid service |
| Monel | ASTM B127 400 / K-500 | Brine, marine, and saline applications |
| Inconel | ASTM B564 625 / 825 | High-temperature and aggressive environments |