| Specification Feature |
Details & Standard Compliance |
| Design Standards |
MSS-SP-81, ASME B16.34, TAPPI TIS, BS EN 12266-1 |
| Size Range |
2" to 48" (DN50 - DN1200) |
| Pressure Ratings |
Class 150# (PN10, PN16, 150 PSI CWP) |
| Body Styles |
Semi-Lugged, Full Lugged, Wafer Flangeless Pattern |
| Gate Materials |
SS 304, SS 316, SS 316L, 17-4PH, Hard Chrome Plated / Stellite Coated |
| Body Materials |
Cast Iron (GG25), Ductile Iron (GGG40), Cast Steel (WCB), CF8M, CF3M |
| Seat Materials |
EPDM, Nitrile (NBR), Viton (FKM), Virgin PTFE, Metal-to-Metal Hardfaced |
| Stem Design |
Rising Stem (OS&Y) / Non-Rising Stem in Stainless Steel |
| Packing / Gland |
Multi-layer PTFE impregnated braided synthetic fiber with scraper rings |
| Actuation Options |
Rising / Non-Rising Handwheel, Pneumatic Cylinder, Bevel Gearbox, Electric Motor |
| Testing Standards |
MSS-SP-81, API 598 (Bi-directional Bubble Tight / Uni-directional Zero Leakage) |
| Type & Model |
Key Features & Operating Applications |
| Bi-Directional Knife Gate Valves |
Zero leakage in either flow direction; ideal for reversing flows, pump discharge, and backpressure pipelines. |
| Uni-Directional Slurry Knife Valves |
Heavy-duty beveled gate engineered for high-density mining tailings, pulp stock, and fly ash discharge. |
| Pneumatic Actuated Knife Gates |
High-speed pneumatic double-acting cylinder for rapid open/close automation on automated slurry headers. |
| Through-Conduit O-Port Knife Valves |
Features circular orifice gate that provides full uninterrupted flow with zero seat obstruction in both open and closed positions. |
