RF II Series K = 80 fast / standard response, standard coverage pendent sprinklers hidden as an optional component sprinkler products to buy, RFII series standard response (5mm glass bulb) concealed hanging sprinklers can be used silicone dust seal airtight member (see FIG. 5). Dust airtight seal for blocking the upper space of the ceiling air and dust flow through the cover plate to the sensitive area under the ceiling. RFII series concealed pendent sprinklers only RFII series hidden a metallic appearance or the appearance of white paint cover plate for authentication together. Note: RFII series of nozzles may not be used in the ceiling of the upper air pressure is greater than the ceiling lower part of the place. Downward airflow through the support cup will slow in the next state fire sprinklers operating time. Fusible alloy solder strength low water spray best product, care should be taken to install sprinklers good product, discontinuity when the cover plate, the cover plate joints will crack, the cover plate off. Sprinkler Manufacturers, caidian water spray products, a mechanical and electrical Anyuan Anyuan by the Hubei Chong 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!