One way sealed fully enclosed knife gate valve is a structure in which the gate is fully enclosed in the valve chamber for opening and closing sealing.
○ DN50-DN150 10bar
○ DN200 8bar
○ DN350-DN400 5bar
○ DN450-DN600 3bar
○ DN700-DN1400 2bar
○ Slope wedge block
○ Tetrafluoroethylene ring
○ Valve stem reverse sealing
○ Plane support point
○ Side support point
○ Connection form: wafer (also available with plum blossom, flange optional)
○ Switch form: worm gear (also available in pneumatic and electric options)
Valve body material: WCB, CF8, CF8M
○ Gate material: F55, F532205, SS310, SS316L, SS316, SS304
○ Sealing materials: EPDM, NBR, PTFE,
○ Packing: aramid, high water-based, PTFE, rubber
Applicable media: Suitable for solid media such as mud, urban sewage treatment, sugar factories, papermaking, pharmaceuticals, chemical products.
○ Unidirectional sealed fully enclosed knife gate valve is a structure in which the gate is fully enclosed in the valve chamber for opening and closing sealing. It is suitable for installation under sewage tanks, pipelines where the valve body is immersed in liquid, or pipelines where valves are installed underground and the pressure is greater than or equal to PN10.
○ The sealing structure is achieved by closing the gate and moving it downwards until the inclined surface at the bottom of the gate matches the wedge block under the valve body, so that the gate is tightly attached to the sealing surface of the valve seat, thus achieving the sealing effect.
○ The upper semicircle of the gate plate is equipped with a slope wedge block and a slope wedge block on the inner cavity of the valve body. The PTFE guide ring is used to smoothly open and close with the gate plate plane, making the seal more reliable.
○ The circular packing on the valve stem is equipped with dual Y-shaped and O-shaped sealing rings and a reverse sealing structure, which can ensure that the packing can be replaced online when the gate is fully opened, ensuring that the upper valve stem seal of the valve does not leak for a long time.
○ Unidirectional cut-off control point for sludge or slurry pipelines in sewage treatment plants
○ Equipment for preventing medium backflow and blockage in pulp conveying pipelines in the paper industry
○ Realize one-way sealing and reliable isolation in the tailings discharge system of mines
○ The outlet pipeline of chemical storage tanks needs to be blocked in one direction to prevent backflow pollution
○ The conveying pipeline for thick materials in the food industry meets the hygiene requirement of one-way cutting
One way sealed fully enclosed knife gate valve is a structure in which the gate is fully enclosed in the valve chamber for opening and closing sealing.
Bidirectional self sealing knife gate valve adopts an integral valve body design, with pressure sleeves on both sides of the valve seat to protect the flange surface and increase the service life of the valve.
The one-way sealed knife gate valve is a double sealed structure, with a first seal at the valve packing to scrape off dirt on the surface of the gate and prevent debris from flowing up