Metal seal butterfly is common soft seal butterfly valve to pressure in the high temperature areas of the extensions and development, cast steel valves, which in addition to retaining the original butterfly valve has compact structure, small size, light weight, easy operation, valve, reliable performance, maintenance Simple, but also has anti-aging, anti-radiation, durable, long life, temperature resistance, high pressure, wide range of applications and so on. Widely used in heat pipes, boiler auxiliary systems, petrochemical and metallurgical industries, to cut off and regulate a variety of non-corrosive and corrosive media. Butterfly installation techniques and how to use equipped with flange and bolts needed to regulate the flow, there are worm gear box control. Open and close the valve more frequently, in about two months time, open the worm wheel cover, Shandong cast steel valves, check whether the normal butter should maintain the right amount of butter. Check the connection site requires compression, valve brand, which is to ensure filling of bees, but also to ensure a flexible stem rotation. BD343H flanged valve multi-level hard sealed insulation thanks to the steam jacket insulation / cold (also with hot water, oil or other liquids, gases, heat / cold), so even if the outside temperature drops below freezing, the valve remains flexible operation, to ensure that the media can be closed pipelines can start. The advantage is that other control valves are not available, is ideal for heavy oil pipeline control valves. Shandong Everbright valve (Figure), the valve brand, Valve Co., Ltd. by Shandong Everbright valve. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) located in Weifang City, Shandong Province, Cravens District Bao Tong Street North Makers Industrial Park. Scraps and development in the wave of market economy, the current Everbright valve has a high profile in the ball, and enjoys a good reputation. Everbright valve made whole network business alliance certification, marking our service and management level has reached a new height. Everbright valve staff willing to work with all people of insight and common development, for a better future.