Hose Fittings

Pipe fittings and pipe connecting tool between the connection point between elements can be removable and pipes. Serves as an indispensable role in the tube, it is the two hydraulic pipes constitute one of the main parts. Fittings for instruments, such as straight lines, connecting the form of socket weld or threaded connections. Mainly used for low pressure pipeline small caliber for assembly and disassembly of parts need frequent or as threaded pipe fittings with a final adjustment. Related products are excellent quick and easy collection of the structure should be adopted in the form of metal surface contact seal structure, structure gasket usually general pipeline for transporting water, oil, air, etc., using malleable iron material. In addition, when the choice is to consider the requirements and price and other factors.
Has a variety of types of pipe fittings, pipe fittings commonly used in general can be divided into two kinds of hardware fittings and hose fittings  If, pursuant to pipe fittings and pipe connections to points, hardware fittings have flared, ferrule and welded three, jic hose fittings are mainly withhold hose connector.
Hydraulic system connection pipes and fittings are also different, screwed into the end of the pipeline connecting thread is used. Taper thread by virtue of their vertebral body tighten and use PTFE sealing operations and other substances, mainly used in low-pressure hydraulic systems. Fine thread sealing effect is very good, often used for high-pressure system, but it requires the use of a combination of gaskets or O-rings to work against a closed end face, sometimes used copper washers, which are more suitable for comparison in connection wall thick pipes, which are mainly part of the joint body take over and nuts. In use, the connector body embedded targets, in conjunction with the previously mentioned gasket seal with a rubber seal between the connector body and takes over, sometimes using spherical sealing manner.
As the pipe joints belong to removable connecting elements, which meet the normal connection secure, sealing strong, reasonable size, small pressure loss, good process performance requirements, etc., but also must meet the requirements to facilitate disassembly . Therefore, do not watch a small a small pipe joint, because it exists only in order to prop up the entire hydraulic system

Hose Features

1, a flexible hose fittings between pitches.
2, better scalability, non-blocking and stiffness.
3, light weight hydraulic hose, caliber and good consistency.
4, softness, repeated bending resistance, good flexibility.
5, corrosion resistance, high temperature resistance.
6, rodent, good abrasion resistance, to prevent the internal wiring being worn.
7, resistance to bending, tensile properties, resistance to lateral pressure and strong.
8, soft and smooth, easy threading installation positioning.

hydraulic hose specified operating pressure

Third, the security measures: To ensure safe and reliable use of the hose assembly, the following special attention.
1, pressure: hydraulic hose specified operating pressure is normally the case can not be less than the maximum system pressure, only in the case of infrequently used, only allow an increase of 20%; For use frequently, often bending and torsion are to be reduced by 40%. Shock pressure system if higher than the specified operating pressurehydraulic hose machine, hydraulic hose not only reduces life, and may result in personal equipment accidents.
2, temperature: fluid temperature and ambient temperature, whether it is stable or transient, shall not exceed the hose temperature limit, the temperature is below or above the recommended temperature hose, the hose can reduce performance, causing the hose damaged, causing leaks.
3. Fluid Compatibility: Hose fluid, product samples shall comply with the provisions of "use" in made outside the specified use can not guarantee the life and safety of the pipe.
4, the appropriate end connections: As easy nut connection, low cost and are widely used, but the vibration is large, taking fully into account the issue nut loose, take the flange connection.

Hydraulic hose in use and design should note the following

reusable hydraulic hose fittings in use and design should note the following:
1, the bending radius of hydraulic hoses should not be too small, usually not less than the value "of hydraulic hose assemblies technical features" in the regulations. Connection hose assembly and fittings should have a straight part, this length should not be less than twice the pipe diameter.
2, hydraulic hose assembly should take into account the length of the hose after a pass into the pressure oil, the length of the shrinkage will occur, the general shrinkage of 3 to 4 percent of the tube length. Therefore, when hose assembly installation, not allowed to be in tension.
3, metric hydraulic hose fittings assemblies should be installed to ensure that does not happen torsional deformation. Hose joint axis should be placed in the plane of movement, to avoid each other at both ends of the hose impaired movement.
4, hydraulic hose should avoid contact with the sharp parts on mechanical and friction, so as not to damage the pipe.

Hose fittings installation

hose fittings installation
1, according to the size and dislocation of joints at both ends of the case may require connections.
2, the installation, first unscrew the connectors at both ends of the connector were installed in the return pipe fan coil for the interface,
Shall be sealed and tighten.
3, when the corrugated flexible connector pre-bend should be placed at both ends of the nut Looper corrugated flexible joints, to avoid bending when the bellows nut stuck.
4, note that during the installation process, do not squeeze hit with a hard object, do not damage the sealing surface.
5. Note the reading to see whether it isreusable hose fittings

Hydraulic hose fitting

 seals at its convergence is elastic sealing body, it passes austerity load and deformation and maintain contact stress,hydraulic quick couplers close to the sealed surface, and was squeezed into the sealing surface everything microscopic pits. When the sealing medium pressure is less than the contact stress on the surface of the elastomer,jic hose fittings can not constitute a leak. hydraulic hose adapters by using the ring sealing surface when the device is in cooperation with the amount of interference has obtained a deformation and contact stress. Contact stress and deformation and elastic modulus seal related.