Polyethylene pipe system for feedwater with shock -absorbing function

The utility model relates to a polyethylene pipe system for feedwater with shock -absorbing function, including duct main body, duct main body's outside parcel has one deck vulcanie circle, the top and the bottom of vulcanie circle respectively are provided with a guide rail, guide rail go up sliding connection and have the uide bushing, the top of uide bushing is connected with rings, rings and uide bushing between still be equipped with damping damping spring, guide rail on seted up the locating hole, the uide bushing on the position of corresponding locating hole offered the jack, the uide bushing make the locating pin pass in proper order that the jack is realized with the locating hole and guide rail's fixed connection through inserting the locating pin. This design reduces the influence of vibrating the pipe -line system major structure through addding damping damping spring, has played extension pipe -line system life's effect.