Two-soft (hard) ball sealed insulation characteristics: the product has a good cold insulation properties, consistent with the valve diameter and diameter, while effectively reducing the pipeline medium heat loss. Mainly used in petroleum, chemical, metallurgy, pharmaceutical, food and other types of insulation systems BQ41F ball price, delivery will be solidified at room temperature, but also high-viscosity media. Valve Co., Ltd. Shandong Everbright valve manufacturer specializing in the production BQ41F, welcome new and old customers to order our products! Failure: the sealing surface leakage analysis for production reasons 1. Valve mounting direction and medium flow does not conform; 2. the valve is closed is not in place; 3. long-closed valve sealing surface fouling; 4. sealing surface slight rubbing injury; 5. Seal face serious damage; failure to eliminate 1. Note check valve is installed; 2. readjust speed screw on the valve actuator models, shutting the place; 3. the valve open a crack, so that the high-speed liquid flush fouling; 4. High-speed shims to compensate; 5. Re-grinding, high speed pads compensation; BQ41F insulation ball valve type _BQ41F price _ Everbright Ltd. Shandong Everbright provided by the 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.