Insulation is a relatively new type of ball valve type, it has its own unique structure some advantages Shandong BQ41F insulation valve, such as switches without friction seal easy to wear, small opening and closing torque. This reduces the actuator with the specifications. With multi-turn actuators BQ41F, can be realized on media regulation and tight cut. Widely used in petroleum, chemical, urban drainage and other demanding cutting conditions. 1. Turn off the closing process, clockwise rotation of the handwheel, the stem and the ball began to fall away from the seat starts to rotate. 2. Continue rotating the hand wheel, insert the stem on which the spiral groove by the guide pins holding role BQ41F ball price, so that the valve stem and ball while rotating 90 °. 3. When it is almost closed, the sphere has at without contact with the valve seat is rotated 90 °. 4. Turn the hand wheel the last few laps valve type, angular plane mechanically wedge at the bottom of the stem to the oppression of the ball, making it tightly pressed on the seat, to be completely sealed. Shandong BQ41F insulation Ball | Everbright Valve Model | 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.