Knife Gate Valve
GA Valves can offer a range of resilient seated uni & bi-directional wafer style pattern knife gate valves with non-rising spindle to provide a tight shut-off on an extensive range of slurries from heavy sludge to clean fluids. The blade has a round bottom and chamfered knife-edge to cut the demanding product media. An internal and external powder coated blue paint finish for the valve body is used as a rust preventative. The gland packing can be replaced without removing the valve from the pipeline.
Size Range: 50mm to 1200mm.
Materials: Cast Iron, Ductile Iron, Stainless steel, Duplex, Super Duplex, Various Plastics
Operation: Manual operation by hand wheel, chain wheel, gearbox & lever. Power operation by pneumatic, electric and hydraulic actuators, including positioners, minit switches, solenoids and I/P converters.
Connections: Wafer lugged to suit flanges ANSI B16.5 RF, flat face and RTJ ASA125 / ASA150 / ASA300, BS10 table D / E, BS4504 PN6 / PN10 / PN16 / PN25 / PN40
Other options: In addition to our standard uni-directional and bi-directional range, we also have available many other seat designs. High performance, square port, hopper and sluice designs. Other options include scrapers, various seat materials and specialized coatings.
Totally encasulated top with full machined bore for pipe needle duty.
Coal slice valve.
40 bar rated valve.
25 bar rated with hydraulic autuation.
25 bar rated with Nihard insert for abrasive appliction and spring forward fail closed system.
Brass body specific for pipelines with certain chemicals.