Open sprinklers. The difference between open and closed nozzle sprinklers only in the lack of a release mechanism riverbank closed by the heat sensitive element consisting of open sprinklers, which consists of the body, frame and splash plate components. Its installation in the form of closed nozzle basically the same. WS series of horizontal / vertical sidewall sprinklers special use glazing K = 80WS type horizontal sidewall spacers windows and sagging nozzle flow coefficient K = 80 Castle closed open nozzle, a special closed nozzle 3mm tempered glass. Closed fire resistance is different from the open nozzle cooling nozzle protection, head protection through closed window panes have two hours of when the fire hydrant water column even direct spray glazing, the glass does not burst or produce visible damage It can be used as building materials fire cut off. Effective protection nozzle is specially designed nozzle splash thermal capacity and water nozzle plate rapid response. Wuchang closed open sprinklers _ Chong Anyuan Industrial (certified) _ Wuhan, Hubei closed by the open sprinklers create 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.