ZSTWC medium velocity water spray nozzle :spare parts of fire suppression system , the main components used to protect the flash point at 66 ° C below the flammable liquid ,gas and solid hazardous area quickly after the water flow through the nozzle is atomized to improve the fire performance .During a fire heat-absorbing surface of the nozzle exposed to a variety of building fire near continuous spray mist ,prevent the exposed surface absorbs heat and fire spread , in order to protect the safety of various buildings .ZSTWC medium velocity water spray nozzle features:1 , inhibit the burning rate , reduce fire losses and reduce the risk of explosion .2 , water is cheap extinguishing agent , has a good economy .3 , if the liquid fuel fire fighting , water can be added to fresh water bubble liquid , in order to improve the fire-extinguishing effect .K=28,34,42,50,57,64,80,115spray angle : 60°,90°,100°,120°,145°,163°,180°thread:1/2,3/4,