Butterfly installation techniques and equipped with flange and bolts of how to use the need to adjust the flow BD343H butterfly with worm gear box control. Open and close the valve more frequently, about two months time, open the worm gear cover, check whether the normal butter should maintain the right amount of butter. Check the connection part of the requirements of compression, which is to ensure filling of bees, but also to ensure a flexible stem rotation. 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 butterfly, market-oriented, dedicated to provide customers with products and services. To improve the level of quality assurance BD343H valve manufacturers, all employees 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; Third, continuous quality improvement, the pursuit of first-class work, first-class management, first-class quality. Butterfly valve Shandong, China Everbright Everbright valve provided by Valve Co., Ltd., Shandong. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) in this field ball devoted boundless enthusiasm and passion, Everbright valve has been customer-centric, the idea of ??creating value for customers, quality and service to win the market, and sincerely hope to work with the community to create success, create brilliant. Welcome to the relevant business information, Contact: Manager Ma.