Principle of functioning
TECOFI knife gate valve is constituted by a gate which slides in a narrow body. The upper part of the gate, in closed or opened position, stands out from the body.
The gate is sharp thanks to a chamfer of extremity. The polishing of faces facilitates the penetration of the gate in the product. At the end of valve closing, the gate is stuck to the joint to assure the seat tightness. The gland packing guarantees the internal tightness of the valve.
– This technology of TECOFI knife gate valve is particularly adapted for difficult using conditions such as thick or pow – dery products.
– Traditional gate valves contain important retention zones. Also thick or powdery products prevent the good functioning of the wedge. The TECOFI knife gate valves with the upper gate part always out of body can always open and being sharp always can close with sharp edge.