Slurry Knife Gate Valve Manufacturers in India
Speciality Valve is a leading Slurry Knife Gate Valve Manufacturers in India, producing heavy-duty valves for abrasive, viscous, and solids-laden media. Engineered for severe service, our valves are trusted in mining, power, steel, cement, water treatment, and chemical industries. Manufactured in India and exported worldwide to the USA, Europe, GCC, and Africa, our slurry knife gate valves meet international performance and durability standards.
Function & Working
Slurry knife gate valves isolate slurry and solids-laden flows using a sharp-edged gate that cuts through the medium, providing bubble-tight shutoff and a full-bore opening. Replaceable sleeves and hardened trims ensure smooth operation, reduced cavitation, and long service life.
Advantages
Bi-directional, zero-leakage sealing under demanding conditions
Abrasion- and corrosion-resistant design with replaceable sleeves and trims
Full-bore opening prevents clogging and reduces pressure drop
Low-maintenance modular construction
Flexible actuation: manual, gear, pneumatic, electric, or hydraulic
Customizable options: purge ports, liners, deflector cones
Materials of Construction
| Component | Material Options |
|---|---|
| Body | Ductile Iron (GJS-500), Carbon Steel (WCB, WCC, LCB, LCC), Stainless Steel (CF8, CF8M, CF3M, SS304, SS316, SS316L, SS317L), SS904L, Duplex (SAF 2205), Super Duplex (SAF 2507), 254 SMO, Hastelloy C276/B3, Inconel, Alloy 20, Titanium Grades 2 & 7 |
| Gate / Trim | Stainless Steel (SS304, SS316/316L, SS317L), CF3M, SS904L, Duplex & Super Duplex, Hardened Tool Steels, Stellite Overlay, Tungsten Carbide Coating |
| Seat / Sleeve | Natural Rubber (NR), EPDM, Nitrile (NBR), Neoprene, Viton, Polyurethane/Urethane, PTFE, RPTFE, Reinforced Elastomers with Metal Cores |
| Guides & Supports | Bronze, Stainless Steel, Alloy Options |
| Other Components | Load Distribution Rings, Purge/Drain Ports, One-Piece Cast Body Options |
Technical Specifications
Size Range: DN50 – DN1200 (2″ – 48″)
Pressure Ratings: ASME Class 150 – 600 / PN10 – PN40 (special designs available)
End Connections: Wafer, Lug, Flanged (RF/RTJ), Butt Weld
Design Standards: MSS SP-81, API 609, ASME B16.34, ISO 9001, PED 2014/68/EU
Testing: Hydrostatic and seat leakage as per API 598 / ISO 5208
Industries Served
Mining & Mineral Processing
Steel & Cement Plants
Power Plants (fly ash, gypsum, ash slurry systems)
Pulp & Paper Mills
Water Treatment & Desalination Plants
Chemical & Fertilizer Plants
Oil & Gas / Petrochemical Facilities
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