作者: Robert B. Washburn
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摘要: A coupler for connecting a pair of plastic pipes aligned end-to-end includes rigid sleeve having center portion and two end portions. An internal passage longitudinally extends through the is sized receiving ends pipes. The has spaced apart annular sealing grooves located within passage. Each portions circumferentially slits extending from an forming plurality elements deflectable toward away flexing groove near inner increasing flexibility elements. also locking on O-rings are encircling seals between Split metal rings in when engagement with Band clamps encircle radially outward deflecting to engage Preferably have respective sleeve. rounding