Knife Gate Valve Manufacturer in USA
SVR Global is a leading Knife Gate Valve Manufacturer in USA, offering valves engineered for industries requiring reliable isolation in slurry, wastewater, pulp, mining, chemical, and power applications. Our valves are designed with a sharpened gate (disc) that cuts through thick media, ensuring minimal pressure drop and leak-tight performance. Built in compliance with API, MSS, and ASME standards, our knife gate valves are highly durable even under abrasive and corrosive conditions.
Function & Working
Knife gate valves use a sharpened disc (knife) to slice through slurry, sludge, or viscous media. When actuated, the gate moves down to provide tight shut-off or up to allow unobstructed flow. The design prevents clogging and ensures smooth operation in applications where conventional valves may fail.
Advantages
Reliable sealing for slurry and abrasive media
Full port opening ensures low pressure drop
Bi-directional sealing options available
Easy maintenance with replaceable seats and packing
Offered in manual, pneumatic, or electric actuation
Materials
| Component | Material Grades / Standards | Typical Applications |
|---|---|---|
| Body | Cast Iron (ASTM A126), Ductile Iron (ASTM A536), Carbon Steel (ASTM A216 WCB), Stainless Steel CF8/CF8M (SS304/SS316), Duplex (ASTM A890 CD4MCu), Super Duplex (UNS S32750), Titanium, Inconel 625 | Utility, wastewater, oil & gas, marine, mining, severe chemical service |
| Disc / Knife | Stainless Steel SS304, SS316, SS316L, Duplex S31803, Super Duplex S32750, Hardened SS with Stellite or Tungsten Carbide Coating, Alloy 20, Titanium | Abrasive slurry, corrosive media, high-chloride service, long wear resistance |
| Seat / Liner | EPDM, NBR, PTFE, Metal (SS316, Hard-faced) | Zero leakage sealing, chemical resistance |
| Stem | Stainless Steel SS410, SS316, Duplex Steel | Corrosion resistance, strength under load |
Industries Served
Mining and Mineral Processing
Wastewater Treatment
Pulp & Paper
Chemical and Petrochemical
Power Plants
Oil & Gas
Technical Specifications
Design Standards: API 609, MSS-SP-81, ASME B16.34
Size Range: 2” – 72”
Pressure Ratings: PN6 – PN40 / Class 150 – 300
End Connections: Flanged (ANSI B16.5), Wafer, Lugged, Butt Weld (BW), Socket Weld (SW)
Operation: Manual Handwheel, Pneumatic Cylinder, Electric Actuator
Special Features: Hardened knife edges, purge ports for cleaning, replaceable seats
