fire hose reel is composed of gate valve, input pipe, spoke, stand, rocker arm, hose and ejector. ... Brief introduction and applicationJPS firefighting hose coil is composed of gate valve, input pipe, spoke, stand, rocker arm, hose and ejector ... of φ19mm. The water inlet is connected to a Rc1 copper gate valve and the outlet is connected to aφ6mm Rc1 ...