As a result of the steam valve insulation jacket insulation to help even if the outside temperature drops below freezing, the valve type, the valve is still operational flexibility to ensure that the pipeline can be able to start off. The advantage is that other control valves are not available, is ideal for heavy oil pipeline control valves. . Jacket Connection: 1 optional threaded connection DN15 - DN20 G3 / 8, DN25 - DN150 G1 / 2, DN200 above G3 / 4; 2 optional flange connection. 15 flange DN15-DN50, DN65 - DN150 20 flange, DN200 more than 25 flange. Features: 1 wedge seal structure. Valves are the mechanical force provided by the valve stem, the valve wholesale, ball and wedge against the seat and sealing, the valve seal is not affected by pressure changes in the pipeline, valves, sealing performance under various conditions have reliable guarantee. 2, self-cleaning structure sealing surface. When the ball away from the seat tilt, the pipeline fluid along the sealing surface of a sphere through 360 ° uniform, not only eliminates the high velocity fluid on the seat of local erosion, but also washed away the sealing surface accumulations, to self-cleaning purposes ??? Insulation valve; two-way insulation valve; soft sealing insulation valve; hard sealed insulation valve Due to the overall structure, and thus the insulation ball valve which is smaller than the average, lighter valve brands, and no leakage, good sealing performance, jacket using carbon steel welding firm with more pressure than the cast. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, welcomed the new and old customers to order our products! Shandong Everbright valve (Figure), wholesale valve, the valve is provided by Valve Co., Ltd. Shandong China Everbright. 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.