Ball insulation is a relatively new category two soft-ball (hard) ball price sealed insulation, it has its own unique structure some advantages BQ41F) sealed insulation valve, such as switches without friction, easy to wear BQ41F seal valve supplier , opening and closing torque is small. This reduces the actuator with the specifications. With multi-turn actuators can be realized on media regulation and tight cut. Widely used in petroleum, chemical, urban drainage and other demanding cutting conditions. Valve Malfunction Causes and Remedy: analyze production causes of leakage at the packing: 1. packing aging; 2. operating force too much too fast; 3. gland bolts loose; the failure to eliminate: 1. should be replaced aging, damaged packing BQ41F, placed by lap joints was 30 ° ~ 45 °; 2. to be normal force uniform operation, and not the other way cased or lengthened arm; 3. Squeeze the gland and tighten evenly with Bolt; BQ41F ball, Everbright valve, BQ41F Ltd provided by Shandong Everbright valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) Shandong Weifang, ball leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Everbright valve leadership with the staff warmly welcome all inquiries negotiations to create a better future for China Everbright valve.