Cangzhou Aviva ventilation valve welded steel plate production manufacturing, with short structure size, light weight, easy installation features. The valve drive torque, hoist flexible, easy to operate. Set oil seal retainer on the body, no visible gap between the seal pair, small leakage rate. Expansion gap between the disc and the body is large, can effectively prevent stuck phenomenon caused by thermal expansion and contraction. The valve can be equipped with a variety of drives, such as manual device, worm gear, pneumatic, electric devices. Ventilation valve is widely used in metallurgy, electric power, building materials, mining and other industrial pipelines, gas control or gas for media regulation. Features 1, open and close easily and quickly, saving, fluid resistance, can often operate. 2, simple structure, small size and light weight. 3, can carry mud accumulation of fluid in the pipe mouth least. 4, low pressure, can achieve a good seal. 5, regulated performance. For more information about our products, please call 18032703752 Feedback and Machinery Manufacturing Co., Ltd. Changzhou Yingjie.