The concealed rod knife gate valve is designed to be compact, occupying small space, lightweight, easy to install, wear-resistant (based on actual reports) (based on actual reports) (based on actual reports) (based on actual reports) (based on actual repo...
The concealed rod knife gate valve is designed to be compact, occupying small space, lightweight, easy to install, wear-resistant (based on actual reports) (based on actual reports) (based on actual reports) (based on actual reports) (based on actual reports) (based on actual reports). The anti blocking measures are complete, easy to maintain, and have a long service life
Dark stem knife gate valves are widely used in fly ash treatment, bulk material transportation, chemical plants, food and beverage, papermaking, pulp industry, industrial wastewater, and urban wastewater treatment industriesThe basic structure of a concealed stem knife gate valve includes main components such as the valve body, valve cover, and gate plate. The valve body is the main body of a gate valve, usually made by casting or forging processes, and internally processed into a streamlined shape to reduce fluid resistance. The gate is the core component that enables valve opening and closing, and its shape and movement determine the sealing and operational performance of the valveThe umbrella gearbox is an important component of the gate valve. It drives the umbrella gear to rotate by rotating the handwheel, thereby achieving the up and down movement of the gate valve and completing the opening and closing of the valve. Umbrella gear transmission is a mechanical transmission method with suitable accuracy and good efficiency, which can achieve transmission between any two axes in space such as parallel axis, intersecting axis, and staggered axis. This transmission method not only has a wide range of power transmission, but also has a high circumferential speed, making it suitable for various complex working conditionsThe working principle of the concealed rod knife gate valve is to drive the umbrella gear to rotate by rotating the handwheel, thereby causing the gate to move up and down. When the handwheel rotates counterclockwise, the umbrella gear drives the gate to move downward and the valve opens; When the handwheel rotates clockwise, the gate moves upward and the valve closes. When the valve is closed, the gate is tightly attached to the valve seat to confirm good sealing. Knife gate valve is a one-way sealed knife gate valve, which can replace the rubber sealing ring. The sealing principle is mainly achieved by the close contact between the gate and the rubber sealing ring, thus achieving the sealing effect. This series of knife gate valves is an economically efficient and stable product that can be equipped with pneumatic actuators to meet different industrial and mining requirements
Model: QZU
Diameter: DN50-1600
Valve body: WCB, CF8, CF8M, CF3, CF3M
Gate plate: SS304, SS316, SS316L, SS310, 2205, F53, F55,
Valve seat: EPDM,NBR、PTFE、Viton、 Metal valve seat
Packing: PTFE, rubber, graphite, aramid, high water-based
Manual drive mode: split wheel drive, bevel gear drive, spur gear drive, mechanical rod, sprocket, etc.
Automatic drive mode: divided into electric, pneumatic, hydraulic, electro-hydraulic
Fran connection standard (other flange standards can be provided upon request):
PN10、PN16、ANSI B16.5 Class 150,、BS“D”& E "
Work pressure:
DN 50-DN 250 10 kg
DN 300-DN 400 6 kg
DN 450 5 kg
DN 500-DN 600 4 kg
DN 700-DN 1200 2 kg
The structure of the umbrella gearbox adopts excellent materials and processing technology, confirming good transmission accuracy, long service life, and easy and flexible operation. For example, the PZ573H umbrella gear knife shaped gate valve of Yuxuan Valve adopts a knife shaped gate structure, which not only has good sealing performance, but also has self-cleaning function, which can effectively avoid gate jamming and other faults. It is suitable for harsh environments such as high temperature, high pressure, and strong corrosion
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