FITTING FOR PIPES CONNECTION, IN PARTICULAR FLEXIBLE PIPES Russian patent published in 2015 - IPC F16L19/00 

FIELD: machine building.

SUBSTANCE: group of inventions relates to fitting for pipelines connection. Fitting for pipes connection contains at least first and second pipe elements equipped respectively with the first and second input/output holes, and creating at internal surface the first and second pipelines respectively. The pipe elements are made with possibility of connection with each other such that the first and second pipelines are connected with each other with possibility of mutual fluid transfer, and together create combined pipeline with fitting ensuring the first hole connection with the second hole with possibility of the fluid transfer. The fitting additionally contains at least the first securing device comprising coupling and locking ring; at that the couple is made with possibility of connection to the first pipe element such that surrounds it from external side and creates between the coupling and first pipe element a ring clearance intended to receive the inserted pipe; at that coupling has internal surface looking on the first pipe element, and external surface, and is provided with ring collar projecting from the said external surface, and ring groove in the said internal surface at the ring collar, in it the lock ring is installed. The first securing device operates at least in the insert configuration, when it provides the pipe insertion in the ring clearance, and in securing configuration it reliably and tightly for fluid secures the pipe in the ring clearance.

EFFECT: improved securing.

10 cl, 11 dwg