Umbrella gear concealed stem knife gate valve

The umbrella gear knife type gate valve has a compact design, small space occupation, light weight, easy installation, wear resistance (based on actual reports), complete anti blocking measures, easy maintenance, and long service life. Widely used in fly ash treatment, bulk material transportation, chemical plants, food and beverage, papermaking, pulp industry, industrial wastewater, and urban wastewater treatment industries

The basic structure of a gate valve includes the 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 a gate valve is to drive the umbrella gear to rotate by rotating the handwheel, thereby moving the gate 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 sealingThe 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