Knife Gate Valve

APPLICATIONS:
UNIMAC Knife Edge Gate Valves are designed for isolation, On-off and Throttling services in Paper and Pulp Industries, Power Plants, Steel Plants, Cement Plants, Sugar Industries, Chemical and Textile Processing Industries, Mining, Water and Sewage Plants to handle Slurries, Slag, Plug, and Fibrous Materials, Fly ash, Powders, Clean or Corrosive gases.

When situations require flow or pressure from either direction to be handled by valves, UNIMAC Series BD - 71 are uniquely designed gate valves for such applications
SALIENT FEATURES
Unlike our Uni-directional Series UD-70, the Bi-Directional series BD - 71 features a two piece bolt on body construction that allows replacementof peripheral seal when required. Seal replacement can be done even without full disassembly of the valve body halves by slightly loosening body bolting. Unlike our uni-directional series UD-70, which use a face sealing on the raised seat, as the series BD-71 has no raised seat and is a full port design offering unrestricted flow in either directions. This design uses an elastometer seal around the periphery of the gate to effect fluid sealing. As this is a symmetrical peripheral seal, the sealing remains identical from either directions of the valve and the special elastometer to metal peripheral sealing of gate ensures Bi-directional leakage prevention accross the gate.

Full closure achieved due to gate having bevelled knife edge at bottom to cut through solid particles settled at the bottom of the body. Glandless valves provided with unique cross sealing mechanism at the rear end for leakage prevention. This uniquely cross sealing arrangement facilitates re - packing in installed condition to eliminate leakage from accross the seal.

OPTIONS
Deflection Cone or Baffle provided in the front end of the top housing to ensure flow of material towards the centre. This facilitates in avoiding possible entrapment of granular amterial between the seal and the front end of the gate dring closing .

Valves available with or without rear encapsulation box to prevent leakage of material to the environment.
Wide variety of material options to suit the application.

Rising Stem in the case of encapsulated design and non Rising stem in the case of non encapsulated design which is best suited for tight spaces and sfety requirements.