Forged Steel Gate Valve Manufacturers in India
Speciality Valve is a Forged Steel Gate Valve Manufacturers in India, producing compact, high-integrity valves for high-pressure and high-temperature service. Designed to API 602 and ASME B16.34 standards, our forged steel gate valves are engineered for performance in critical isolation duties such as steam, refinery, petrochemical, and power plant applications.
Function & Working
Forged steel gate valves use a wedge or parallel gate that moves vertically between seats to start or stop flow. Forged construction ensures higher strength and resistance to porosity compared to cast valves, making them reliable under severe pressure and temperature conditions.
Advantages
High structural integrity from forged body construction
Compact design for small-bore, high-pressure pipelines
Available with bolted bonnet, welded bonnet, or pressure seal bonnet
Wide alloy selection for corrosive and high-temperature media
Long service life with hard-faced sealing surfaces
Materials of Construction
| Component | Material Options |
|---|---|
| Body / Bonnet | A105, A350 LF2 (low-temp CS), Alloy Steel F11, F22, F91, Stainless Steel F304, F304L, F316, F316L, F321, Duplex F51 (S31803/S32205), Super Duplex F53/F55 (S32750/S32760), SS904L, Alloy 20, Hastelloy C276, Monel, Titanium Grades 2 & 5 |
| Gate / Wedge | Forged Stainless Steels (304, 316, 316L, 321), Duplex F51, Super Duplex F53/F55, SS904L, hard-faced with Stellite or Tungsten Carbide for abrasion resistance |
| Stem | SS410, SS304, SS316/316L, Duplex, Super Duplex, Monel, Inconel alloys |
| Seats / Sealing | Renewable or hard-faced sealing with Stellite / Nickel alloys, Spiral Wound Gaskets (Graphite + SS), PTFE, Viton |
| Bolting | Alloy Steel B7 / B16, Stainless Steel B8 / B8M high-tensile fasteners |
Technical Specifications
Size Range: ½″ – 2″ (DN15 – DN50)
Pressure Ratings: ASME Class 150 – 1500 (Class 2500 available)
Bonnet Types: Bolted Bonnet, Welded Bonnet, Pressure Seal Bonnet
End Connections: Socket Weld, Butt Weld, NPT/BSP Threaded, Flanged (optional)
Standards: API 602, ASME B16.34, BS 5352
Testing: Hydrostatic and seat leakage testing as per API 598 / ISO 5208
Industries Served
Oil & Gas
Power Generation
Petrochemical & Fertilizer Plants
Marine & Offshore Systems
Chemical Processing Units
Steam & Utility Services
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