At present, high-pressure cleaners have been gradually popularized and applied in various industrial fields in my country, and they are gradually expanding. The high-pressure hose in the high-pressure washer assembly is a necessary element to connect the nozzle and the high-pressure water pump, and the high-pressure hose is the connection between the pump directly and the jet unit. The following mainly introduces the joint form and precautions of the high-pressure hose. 1. The joint form of high-pressure hose can be roughly divided into internal thread form and external thread form1) Internal thread formThis structure is generally suitable for occasions…
At present, high-pressure cleaners have been gradually popularized and applied in various industrial fields in my country, and they are gradually expanding. The high-pressure hose in the high-pressure washer assembly is a necessary element to connect the nozzle and the high-pressure water pump, and the high-pressure hose is the connection between the pump directly and the jet unit. The following mainly introduces the joint form and precautions of the high-pressure hose.
1. The joint form of high-pressure hose can be roughly divided into internal thread form and external thread form
1) Internal thread form
This structure is generally suitable for occasions where the working pressure is relatively low and the flow rate is relatively large. This connection method allows the diameter of the high-pressure pipe to be appropriately increased, and its sealing mainly depends on the sealing ring.
2) External thread form
This structural form is mainly used in the case of high pressure, and this connection method is mostly used when the working pressure exceeds 1800bar. This connection method is to press the lock nut through the external thread connector, so that the sealing surface of the tapered surface of the pipe section is closely fitted with the sealing surface of the connected part, and plays a sealing role. The connected parts can also be jet accessories, such as high-pressure spray guns, plane cleaning nozzles, three-dimensional rotating nozzles, etc., or other high-pressure hoses. This connection method can effectively prevent the connection loosening under complex construction conditions.
2. Precautions for the use of conical seals for high-pressure hoses
1) The taper angle of this connection is 60 degrees, and the taper angle of the pipe end is generally required to be less than 1 degree of the hole taper angle;
2) The position of the pipe end must be kept sharp and not blunt;
3) The direction of thread rotation between the pipe end and the lock nut should be opposite to that of the external thread connection;
4) When processing the connector, a small leak hole should be reserved at the seal, in order to prevent the leakage of high-pressure water when the cone surface is not tightly sealed. This can not only play a safety warning role, but also facilitate observation and judgment. So as to better protect the sealing surface from damage
