Hydraulic hose coupling type

Welded hose joints are welded using hoses and hoses. The O-ring seal faces the joint body and the connecting hose. The structure is simple, easy to manufacture, and the sealing is good. The requirement for the dimensional accuracy of the hose is not high. Requires high welding quality and inconvenience in assembly and disassembly. Working pressure up to 31.5MPa, working temperature -25 ~ 80 °C, suitable for oil pipeline system.
Card sleeve type hose joints are used to seal and seal the hose with the deformation of the sleeve. The structure is advanced, the performance is good, the weight is light, the volume is small, and the use is convenient. It is widely used in the hydraulic system. Working pressure up to 31.5MPa, requiring high dimensional accuracy of the hose, need to use cold-drawn steel. Card sleeve accuracy is also high. Suitable for pipeline system of oil, gas and general corrosive media.
Flared fittings are sealed with the flared end of the tube and no additional seals are required. Simple structure, suitable for connecting thin-walled hose fittings
Applicable to oil and gas medium pressure pipeline system.
Insert the welded pipe joint, insert the required length of pipe into the pipe joint until the end face of the hose is in contact with the inner end of the hose joint, and weld the pipe and the pipe joint together. This eliminates the need to take over the pipe, but requires that the pipe be strictly sized for oil and gas. Piping system.
Cone sealed welded fittings are easy to install but add a tightening procedure. After the hose is damaged, the joint jacket can not be reused, and it is combined with the steel wire braided hose to form the assembly. Can be used with welded hose fittings with     O-ring seals. Applicable to oil, water, gas pipeline system for the media. Medium temperature: oil: -30 ~ 80 °C; air, -30 ~ 50 °C; water, 80 °C or less.
Three-leaf hose fittings do not need to be stripped of the rubber cover during assembly. For hoses with slightly different hose outside diameters, the connector housing compensates for the pre-compression of the hose. The pre-compression volume of the hose is in the range of 31% to 50% to ensure that there is no leakage under the working pressure, and no glue is removed and the outer rubber layer is not broken. It can be used with welded hose fittings, quick-change fittings, and snap-on pipe fittings. It is suitable for oil, water and gas-based pipe systems. Its working pressure and medium temperature are limited by the connected hoses.
Fast-change joints (open and close at both ends) can be sealed after the hose is disassembled, and the liquid in the pipe will not be lost. Therefore, it is suitable for frequent dismantling occasions. The structure is more complex and the local resistance loss is greater. Applicable to oil and gas pipeline system, working pressure is less than 31.5MPa, medium temperature -20 ~ 80 °C.

Quick change fittings (open ends), suitable for oil, gas as the medium of the pipeline system, the working pressure medium temperature is limited by the connecting hose.