Rubber sleeve knife gate valve
This type knife gate valve is a flange valve designed for a wide range of industrial applications. The double-seated design provides bi-directional shut off. The design of the valve body and the two rubber sleeves makes the QS valve suited for use in handling abrasive slurries in industries such as: Mining, Power plants, Chemical plants, Wastewater treatment etc.
Body:
Flange style welded body, for installation between flanges, with reinforced ribs in larger diameters, providing the body with extra strength. Internal body design allows the gate to be fully guided. It is equipped with two machined lateral mouths where the sleeves fit perfectly. The grease nipples allow the gate to be lubricated, thus enhancing its capacity to slide between the sleeves. Additionally, the design allows draining through the lower part, where a cover or a bottom splash guard can be installed.
Gate:
Made of stainless steel, polished on both sides, and of rectangular shape, the gate is machined to an edge. As well as reducing friction and damage to the seats, this design allows it to cut perfectly through the fluid. The material can be changed upon request, thus allowing greater working pressures.
Rubber sleeves:
The seat is made up of two highly resistant, long-lasting sleeves, made of natural rubber with a metallic core. Its highly research and patented hollow design allows for maximum flexibility on passing through the gate, minimising the effort necessary for its operation.
The two sleeves are in permanent contact with each other, so that there is total flow. There are no seat cavities which may cause build-up, and the fluid does not come into contact with the metallic parts of the valve. This design allows for easy replacement of damaged sleeves.
Packing: Standard braided PTFE impregnated fibre with EPDM o-ring for better shut off, with an easy access packing gland ensuring a tight seal Long-life braided packing is available in a wide range of materials. Stem: Made of stainless steel, which provides it with a high resistance to corrosion and a long life.
Actuator yoke or support:
Made of steel (stainless steel available on request) and EPOXY coated. Its robust design provides it with great rigidity, withstanding the most adverse operating conditions. Epoxy coating: The epoxy coating on all JCS cast iron and carbon steel valve bodies and components is applied by means of an electrolytic process which provides the valves with a high resistance to corrosion and an excellent surface finish.
Bottom Splash:
There is splash guard that can be installed within the lower part of the valve body. They permit the either periodic or continuous removal of solids that may accumulate during operation of the valve.
Wenzhou JCS Valve Manufacture Co., Ltd., is a comprehensive valve enterprises which integrates scientific research, design, manufacture and sales. The company guarantees the product's quality with superior machining apparatus and testing methods.
JCS upholds "sincerity, quality first, customer first" for the purpose. It specializes in a series of valves including knife gate valve, Jacketed valve, butterfly valve, ball valve, gate valve, check valve, globe valve, threaded valve, which can be equipped with manual, electric, pneumatic, hydraulic, electro-hydraulic, chainwheel actuators etc. These valves can be applied widely to the automatic control system fields such as papermaking, sewage disposal, chemical fibre, petrochemical industry, food, metallurgy, electricity, pharmacy, etc...We assure that every piece of valve, before shipment, will be tested based on high standard, so quality has always been good enough to enjoy high reputation all over the world.
