Injection equipment for cracked building - has O=ring in peripheral groove forming non-return valve for outlets

摘要

The injection equipment with coupling and barrier forces liquid and particularly a cement suspension through a hole drilled in a cracked building. It has an injector screwed, hammered or clamped in position and through which a passage runs, having radial outlets at the end. Its head is secured to the coupling and barrier. The outlets (18, 25) are connected to a peripheral groove (26) at the head end, and which accommodates an O-ring (28) forming a non-return valve for them. ADVANTAGE - Accommodates high rate of flow, allowing use of quick-hardening material.