EXPERT make Knife Gate Valves are ideal to cut through thick flow media like slurry, pulp and powders over a wide range of sizes. Knife Gate Valves are available in rising or non-rising stem with multiple actuation options like hand wheel, chain wheel, bevel gear box, pneumatic cylinder and electrical motorized actuator. These valves can be offered with an integral metal seat for abrasive flow media or with a resilient seat for flow media that requires a tight shut off. These valves are not recommended for throttling and are hence suitable for on/off applications only.
These valves can be supplied with additional accessories like air filter regulator, lubricator unit, solenoid valve, limit switches, proximity sensors, flow control valve and electro pneumatic positioners of reputed makes. Deflector Cone and Counter Flanges may be supplied on request.
Constructional Details
BODY AND BONNET
The Body of unidirectional knife gate valves comes as a single piece casting designed to ensure minimum pressure drop across the valve flow area. A wafer type design ensures compactness of the valve and thus reduces the space requirements. The Body is generally designed to withstand a shell pressure of 10 bar. For higher sizes, adequate ribbing is provided in the chest area to control deflection on pressurization. The Body comes with an integral stuffing box thereby reducing the number of additional components.
