Product name: D41W worm gear rubber lined ventilation butterfly valve
The worm gear rubber lined butterfly valve is composed of several parts with simple structure, small volume and light weight. In addition, it can be quickly opened and closed by rotating 90 °, and is easy to operate, and has excellent fluid controllability. When the flanged butterfly valve is in the fully open position, there are two types of butterfly valves: elastic seal and metal seal. Elastic sealing valve and sealing ring can be installed in the valve body or around the butterfly plate.
Working principle of rubber lined butterfly valve: the butterfly valve is driven by a motor to drive the actuator. The disc is allowed to rotate freely within 90 ° to open and close or regulate the flow of medium.
1. Design and manufacture a new structure made by welding the intermediate disc and short structural steel plate. Compact structure, lightweight, easy to install, low flow resistance, avoiding the impact of high temperature expansion during large flow,
Easy to operate.
2. There is no connecting rod or bolt inside, with high reliability and long service life. It can be installed in multiple locations and is not affected by the flow direction of the medium.
The worm gear butterfly valve is made of steel plate by welding. It has the characteristics of short structure size, light weight and convenient installation. The valve has small driving torque, flexible opening and closing, and convenient operation. The oil seal retaining ring is set on the valve body. There is no visible gap between the sealing pairs and the leakage rate is small. The expansion gap between the butterfly plate and the valve body is large, which can effectively prevent the jamming caused by thermal expansion and cold contraction. The valve can be equipped with a variety of driving devices, such as manual device, worm gear transmission device, pneumatic device and electric device. Ventilating butterfly valve is widely used in industrial pipelines such as metallurgy, chemical engineering, electric power, building materials, mining, etc., to control or regulate the medium gas.
Check the design and working principle of rubber lined butterfly valve>& gt;
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