Chai Jin Tianjin Cable Bridge Co., Ltd. [] used between glass pipe socket double "O" - ring connections, so each installation of a pipe, fire bridge manufacturer, it is necessary to suppress the socket in place to detect double "O" - ring seal. With test pump directly through the top of the pipe pressure test hole. Water pressure to the working pressure of 1.5 times the pipe after the pump stops when (during the operation to open the drain valve exhaust), observe 2min, the pressure drop does not exceed 5% of the test pressure and the glass pipe nozzle no leakage. Speaking glass pipe pipe pressure is qualified. If the pressure drop decreased rapidly, Tangshan fire bridge, in order to install a comprehensive quality inspection pipe, according to test method "Water drains construction and acceptance" provisions pressure test, allowing seepage can be performed in accordance with standard steel pipes, glass pipes Before winding reconfirmed lining no bubbles, pores, no impurities, smooth surface, reasonable resin content, poor and non-white partial curing phenomenon. Must be carefully checked lining is qualified, the defective machine wound prohibited. Chai Jin Co., Ltd. [Tianjin] fire bridge cable bridge, galvanized fire bridge, surface matte sense, the general use of the respective distribution lines provided in the fire, including the fire control room, fire pumps, fire lifts, smoke and fire fan automatic alarm system, automatic fire alarm system in addition to other distribution lines may be resistant cables, spraying fire bridge, without using fire bridge. Fire bridge requires refractory longer than 1h in the underground garage. Fire protection requirements for bridge sections, can be added to the tray, ladder with a fire-resistant or flame-retardant board, online material enclosed or semi-enclosed structure, and the bridge surface priming line with CECS 24; 90 "fireproof coating applications Technical specifications "fire coating, the overall fire resistance shall meet the requirements for specifications of the national standard. Excellent characteristics to win the trust of customers, and gradually replace the old bridge. Galvanized fire bridge _ _ Tianjin, Cangzhou fire bridge cable bridge Preferred Chai Jin Chai Jin from the Tianjin cable bridge Limited. Chai Jin Tianjin Cable Bridge Co., Ltd. (www.tjcjdlqj.com) strong, credible, in Tianjin metals and building materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chai Jin cable tray and you hand into the brilliant, for a better future!