Compared with the traditional connection method, compression connection is simpler to install, faster and more environmentally friendly in the fire end sprinkler system, with lower project cost and maintenance-free in the later stage. The compression connection takes only 10 seconds at one end, the efficiency is 33 times of the traditional threaded connection method, high efficiency, short construction period. Simple operation, 2 minutes to learn, greatly reducing staff skills requirements. No oil pollution at the construction site, more environmentally friendly, no need to paint, maintenance-free later.