| Product Introduction： |
Our factory produce the ventilation valve with welded steel plate manufacture. The valve driving torque is small, open and closes a flexible, easy to operate. Valve Oil Seal Collar set, no visible gap between the seal pair, a small leakage rate. Butterfly valve plate and the expansion gap between the big, can effectively prevent the shrinkage due to temperature changes caused by the phenomenon of choked to death. The valve can be equipped with a variety of driving devices, such as manual devices, worm gear, pneumatic devices, and electrical devices. Ventilation butterfly valve is widely used in metallurgy, the division of, electric power, building materials, mining and other industrial pipeline gas to the media, control or regulates gas. |
