DEVICE FOR CONNECTION OF PLASTIC PIPE TO CONNECTION NIPPLE Russian patent published in 2014 - IPC F16L33/207 

FIELD: machine building.

SUBSTANCE: device for connection of a plastic pipe to a connection nipple has a connection end of the plastic pipe, which is equipped with a chamfer located on the end side in the area of inner diameter, which is axially fixed at intermediate location at least of one O-ring retained in the shaped connection nipple between the connection nipple and a fastening sleeve. In order to create preferable connection conditions, the connection nipple has at least one stop that projects radially outwards and radially displaced inside by means of the chamfer located on the end side in the area of inner diameter of connection end. If to look in the insert direction, the stop is located before the O-ring.

EFFECT: invention improves the connection reliability.

5 cl, 5 dwg