high-pressure PU joint is mainly composed of a core, jacket, rubber layer, and a steel wire layer.
high-pressure pups joint used in hydraulic support more, each bracket is about 10-30 Root, therefore, high-pressure pups joint structure, use and connection methods will directly affect the stability of the stent.
The requirements for high-pressure pug joint are as follows：
(1)before use should check the model, length meets the requirements, and do the sampling pressure test, qualified before use.
(2)check the pipe joints and hose connections have exposed wire, the outer layer is delamination, industrial dryer if the above phenomenon shall not be used.
(3) The coating at the end of the pipe joint shall not be damaged or peeled off, and shall not be used in case of peeling off, so as to avoid leakage due to improper sealing.
(4)the newly installed hose pipe wall should be cleaned, so as not to glue at the end and debris into the hydraulic system.
The connection requirements for the high-pressure pup joint are as follows：
(1)should be connected to prevent the hose twist, so as not to cause the skeleton layer angle change and make early damage.
(2)after connecting the hose length should be left a certain margin, in order to avoid tension caused by changes in the length of the hose and reduce the pressure capacity.
(3)hose clip should be fixed on the curve and the intersection of the straight line, the clip cannot be deformed hose card, the card cannot be too loose.
(4)when connecting moving parts, should be left with sufficient length, so as not to strain the hose during movement.
(5) the bend radius of the connection shall comply with the requirements of the relevant regulations.