ESFR-17 Upright Sprinklers must follow the product information, NFPA standards and FM requirements for installation and maintenance. Improper installation and maintenance will reduce the fire sprinkler performance or even damage the nozzle. Action: fusible connection assembly consists of two equal length connecting member connected via a thin solder layer. When it reaches operating temperature, Wuhan fm certification spray product good, joints fuse, as long as two separate links, start sprinklers watering. This series of products from the nozzle, the nozzle action element hidden in the ceiling of the cover plate assembly and disposable plastic protective cap components. Vertical adjustment of the amount of separable two-piece decorative plate is 12.7mm, can reduce the cutting precision short tube connection nozzle. RFII Series nozzles are shipped with a disposable plastic cap protection, fm certification spray product for protecting the nozzle when decorating. The roof decoration materials to gently press the tip of the protective cap can mark hole center position on the decorative material, after the completion of the roof decoration, remove the protective cap, put the cover plate assembly. Wuhan best fm certification spray products | Creative Anyuan Electromechanical | fm spray products certified by the Hubei Chong Anyuan Electrical Equipment Co., Ltd. to provide. Hubei Chong Anyuan Electrical Equipment Co., Ltd. (www.hbcay119.com) (www.hbcay119.com) is a leader in Wuhan, fire protection equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Anyuan electromechanical leadership in creating the staff warmly welcome all inquiries negotiations to create create a better future for electromechanical Anyuan.