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 water spray, can reduce the cutting precision short tube connection nozzle. RFII Series nozzles are shipped with a disposable plastic cap protection for protecting the nozzle when decorating. The roof decoration materials to gently press the tip of the protective cap closed foam water spray system can mark the hole center position on the decorative material, after the completion of the roof decoration, remove the protective cap, put the cover plate assembly. Action: After the fire, cover plate heated by a fusible alloy solder joints melt three jet water spray nozzle side, the cover plate off, deflector on the guide pin drop to the working position. Thermal expansion of liquid inside the glass bulb. When reached nominal operating temperature, the glass bubble burst, sprinklers watering action. RFII series concealed pendent sprinklers only RFII series hidden a metallic appearance or the appearance of white paint cover plate for authentication together. Closed foam water spray system | water spray stuff | Electromechanical by the Hubei Chong Chong Anyuan Anyuan Electrical Equipment Co., Ltd. to provide. Hubei Chong Anyuan Electrical Equipment Co., Ltd. (www.hbcay119.com) (www.hbcay119.com) strong, credible, in Wuhan, Hubei fire equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead electromechanical create Anyuan into the brilliant and you work for a better future!