Hydraulic pipe quick coupling principle of hydraulic pipe joint
Quick change joint, one is with one-way valve, and the other is without one-way valve. The application with a one-way valve, a one-way valve end is connected with the gas source, when the check valve closes automatically when connected to a one-way valve open end of the thimble. Self locking is the use of steel balls embedded in the groove, while the "cone - cylinder" sleeve to lock the ball.Type, type, structure diagram, characteristic table and standard number of pipe joint, welded pipe joint is welded by pipe and pipe. The sealing surface of the O sealing ring is sealed between the joint body and the pipe. The utility model has the advantages of simple structure, easy fabrication, good tightness and low requirement for the dimension precision of the pipe. High welding quality, inconvenient assembly and disassembly. The working pressure can reach 31.5MPa and the working temperature is -25 to 80 degrees. It is suitable for the piping system with oil as the medium. Table 6~14The JB966 ~ 1003-1977 card sleeve pipe joint is jammed and clamped by the deformation of the clamping sleeve. The utility model has the advantages of advanced structure, good performance, light weight, small size and convenient operation, and is widely used in the hydraulic system. Working pressure up to 31.5MPa, requiring high dimensional accuracy of the pipe, cold drawn steel pipe is required. The card sleeve is also of high accuracy. Piping systems for oil, gas and general corrosive media 15~26
JB/T6381 ~ 6385-1992 burking hose connector has the advantages of convenient installation, but added a tightening process. After the hose is damaged, the joint coat can not be reused, and it is made up of a steel wire braided hose. The utility model can be connected with a welding pipe joint sealed with a O ring. Pipeline system suitable for oil, water and gas as medium. Medium temperature: Oil: -30 ~ 80 degrees Celsius; air, -30 ~ 50 degrees Celsius; water, 80 degrees below JB/ZQ4427 ~ 4428-1986, three valve type hose joint assembly, do not need to remove the rubber tube of the outer layer. A slightly different diameter of hose hose, hose on the joint coat of pre compression to compensate. Hose pre compression in 31% ~ 50% range to ensure no leakage under the pressure of work, will not pull glue, cover does not break. With the welded pipe joint, quick joint, sleeve type pipe joint used for oil, water and gas pipeline system for medium, working pressure, medium temperature by connecting hose limited JB/ZQ4429 ~ 4431-1986 quick change connector (both open and closed) tube apart and self sealing pipe. In the liquid will not be lost, so it is suitable for frequent disassembly occasions. The structure is complex, and the local resistance loss is greater. Suitable for oil and gas pipeline system for medium, the working pressure is lower than 31.5MPa, the medium temperature of -20 to 80 DEG JB/ZQ4434-1986 quick change connector (both ends open) for oil and gas pipeline system for medium, the working pressure of medium temperature according to connecting hose limited JB/ZQ4435-1986
High degree. Piping systems for oil, gas and general corrosive media 15~26GB3733.1 to 3765-1983 flared pipe joints are sealed using the end expansion of the pipe, without the need for other seals. The utility model has simple structure and is suitable for the connection of thin-wall pipe fittingsA low pressure piping system for oil and gas, allowing pressure to be used in table 41, table 27~41GB5625.1 ~ 5653-1985 insert welded pipe joints will need to the length of the pipe is inserted into the pipe end and the pipe connector until the connector end of the contact, the pipe and the pipe joint are welded together, can save over, but the pipe size is strictly applicable to oil and gas as the medium pipeline system table 43 ~ 49JB3878-1985 cone seal welded pipe joint pipe end is an external cone surface, plus O shape sealing ring, and the connector body cone surface matching, screwed with screw. The working pressure is 16 ~ 31.5MPa, the temperature to 80 DEG C - 25Piping system for oil medium 50~62
