Butterfly installation techniques and how to be equipped with flange and bolts metal sealing butterfly valve products are not suitable for installation in pipe end must be installed in the pipeline such as the end to be taken equipped outlet flange to prevent seals backlog over bits. Stem reaction periodically check valve installation using insulation effect BD343H butterfly, found fault immediately removed. Failure may occur even if the elimination method. Valve Co., Ltd. Shandong Everbright butterfly valve manufacturer specializing in the production, welcome new and old customers to order our products! Our company has made in strict accordance with the ISO9001 international quality system manufacturing, the company's quality policy and objectives are: 1. Quality: The company has always maintained a "customer first, multi-benefit" principle, market-oriented Shandong valves, wholeheartedly provide satisfactory products and services to customers. To improve the level of quality assurance BD343H sealed insulation valve, all staff will dutifully perform the following quality: one, depending on the quality of life, every man is responsible for the enterprise; Second, business management, quality management as the center, the implementation of a thorough quality priority ; three, continuous quality improvement, the pursuit of first-class work, first-class management, first-class quality. Valve Model _ Everbright valve (certified) _ Butterfly Limited 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.