Ball Valve Manufacturer in India
Speciality Valve is a Ball Valve Manufacturer in India offering high-performance quarter-turn valves for reliable isolation in oil & gas, power, water, chemical, and marine applications. Our valves are designed for low pressure drop, tight shut-off, and long service life in demanding service conditions.
Function & Working
Ball valves use a perforated spherical ball that rotates 90° to open or close the flow path. Full-bore options minimize pressure loss, while reduced-bore designs balance cost and flow coefficient (Cv). Available in floating and trunnion-mounted constructions, they provide the right combination of torque, sealing performance, and pressure capability.
Advantages
Fast quarter-turn operation
Low pressure drop with high Cv
Fire-safe and anti-static design options
Suitable for severe service and high differential pressure
Easy inline maintenance with top-entry or three-piece options
Types Offered
Floating Ball Valve
Trunnion-Mounted Ball Valve
Forged Steel Ball Valve (compact, high-pressure)
Cast Steel Ball Valve
Metal-Seated Ball Valve (high temperature and abrasive media)
Top-Entry Ball Valve
Fully-Welded Ball Valve (pipeline service)
Jacketed Ball Valve
3-Way / 4-Way Ball Valve
Double Block & Bleed Ball Valve
Cryogenic Ball Valve (extended bonnet)
Industries Served
Oil & Gas (upstream, midstream, downstream)
Petrochemical and Refining
Power Generation (conventional and combined-cycle)
Water Treatment and Desalination
Marine and Offshore Applications
Chemical and Fertilizer Plants
District Cooling and HVAC Systems
LNG and Cryogenic Applications
Material of Construction
Body / Bonnet (grouped where applicable)
| Category | Grades / Standards |
|---|---|
| Cast & Forged Carbon Steel | Cast: ASTM A216 WCB/WCC, ASTM A352 LCB/LCC (LTCS); Forged: ASTM A105, ASTM A350 LF2 |
| Cast & Forged Stainless Steel | Forged: ASTM A182 F304, F316, F316L, F904L, F51 (2205), F53/F55 (Super Duplex); Cast: ASTM A351 CF8 (304), CF8M (316), CF3M (316L); ASTM A995 Gr.4A/5A/6A (Duplex/Super Duplex) |
| Alloy Steel (High-Temp) | ASTM A182 F11, F22, F91 |
| Nickel Alloys | Inconel 625/825 (ASTM B564 N06625/N08825); Hastelloy C276/B3 (ASTM B622); Monel 400/K-500 (ASTM B564 N04400/N05500) |
| Aluminium Bronze | ASTM B148 C95800 (AB2) |
| Titanium | ASTM B381 Grade 2 / Grade 5 |
| Cast Iron & Ductile Iron | ASTM A126 Class B (CI); ASTM A536 65-45-12 (DI) |
Ball / Stem
| Component | Materials / Options |
|---|---|
| Ball | SS316/316L, Duplex/Super Duplex, Inconel 625; Hard-coated (HVOF WC-Co/Cr), ENP overlay, Stellite overlay (metal-seated) |
| Stem | SS410/420, 17-4 PH, SS316/316L, Duplex; NACE-compliant (MR0175/ISO 15156) |
Seats & Seals
| Component | Materials / Options |
|---|---|
| Seats | PTFE, RPTFE, Devlon, PEEK, Nylon, UHMWPE; Metal-seated Stellite/Tungsten Carbide for high temperature or abrasion |
| Stem/Body Seals | PTFE, Graphite (fire-safe secondary seal), Low-fugitive emission packing |
Technical Specifications
Design & Construction: API 6D, ISO 17292, ASME B16.34
Fire-Safe: API 607 / ISO 10497
Fugitive Emissions: API 641 / ISO 15848-1 (on request)
Testing: API 598 / ISO 5208; hydrostatic and pneumatic testing per standard
Face-to-Face & Ends: ASME B16.10, B16.5/B16.47 (flanges), B16.25 (BW)
Size Range: DN15 – DN1200 (½″ – 48″)
Pressure Ratings: Class 150 – 2500 / PN10 – PN420
End Connections: Flanged RF/RTJ, Butt-Weld (BW), Socket-Weld (SW), Threaded (NPT/BSP), Hub/Clamp (on request)
Operation: Manual lever/gear, Pneumatic, Electric, or Hydraulic actuation
Options: Full-bore or Reduced-bore, Anti-blowout stem, Anti-static device, Cavity pressure relief, Cryogenic extended bonnet
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