EC-11 (K = 161) series of large coverage upright / sagging / drooping sprinklers for light embedded in danger and dangerous places (NFPA13) EC-11 series of large coverage upright / hanging decorative sprinklers for light-risk and moderate-risk sites , Shanghai fm certification spray products, according to NFPA13 standards, Hunan fm certification spray products, head protection area of ??37.2m2, fm certification spray products, and standard sprinkler protection in dangerous places in the area is only 12.1m2, in light dangerous places The protection area is only 20.6m2. UL and ULC allow EC-11 series jet nozzle for use in non-combustible barriers impede or ceiling structure and concrete "T" beam structure. Anyuan Hubei Chong Mechanical and Electrical Equipment Co., Ltd. is mainly engaged in proxy spray products provide FM certification, FM certification sprinklers, FM certification deluge valve FM certification / UL registered sprinkler system products Tyco central spray Po (TycoFire & amp; Building Products ) Series sprinkler system products, Shandong fm certification spray products, including various types of sprinkler head, wet alarm valves, deluge valves, flow meters, valves, signal butterfly valve, flowmeter, domestic high-pressure water mist like. TY-FRB series drooping intermediate layer sprinklers available TY-FRB Series pendent sprinklers and S2 type retaining plate combination. Droop can only be used to install sprinklers embedded numbered 10, 20 or 40 embedded decorative plate. Action: thermal expansion of liquid inside the glass bulb. When reached nominal operating temperature, the glass bubble burst, sprinklers watering action. fm Certified Spray Products | Year Anyuan Electromechanical | Shanghai fm spray products certified by the Hubei Chong Anyuan Electrical Equipment Co., Ltd. to provide. fm Certified Spray Products | Year Anyuan Electromechanical | Shanghai fm certification spray products are Anyuan Hubei Chong Mechanical and Electrical Equipment Co., Ltd. (www.hbcay119.com) (www.hbcay119.com) this year introduced a new upgrade, the above picture only for information, please call Tel picture on this page or to obtain the latest information, contact: Liu law.