1. Product Overview

The ventilation butterfly valve produced by our factory is made of steel plate welding and has the characteristics of short structural size, light weight and easy installation. The valve has small driving torque, flexible opening and closing, and easy operation. The valve body is equipped with an oil sealing back-up ring. 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 jamming caused by thermal expansion and contraction. This valve can be equipped with a variety of driving devices, such as manual devices, worm gear transmission devices, pneumatic devices, and electric devices. Ventilation butterfly valves are widely used in industrial pipelines such as metallurgy, engineering, electricity, building materials, and mining to control or regulate medium gases.

Main appearance and connection dimensions of TD641W pneumatic ventilation butterfly valve