China Marine Expansion Bellow

We can supply expansion joints and expansion bellows with various class certificates.
Certificates: ABS, BV, CCS, DNV, GL, LR, NK, RINA etc.
Expansion joints type:
VSSJA
SSJB
SSJA
Expansion bellow type:
Single axial corrugated expansion bellow
Marine type expansion bellow
Sing hinged type expansion bellow/joint
Singe gimbal expanion bellow/joint
Bend pressure balanced expansioin joint/bellow
Straight pressure balanced expansion bellow/joint
Externally pressurized single axial expanion bellow/joint
Straight burial expanion bellow/joint
Rectangular expansion bellow/joint
Rubber joint is also called rubber hose joint, flexible rubber joint, soft rubber joints, rubber joint, high pressure rubber joints, rubber shock absorber, compensator and so on. By the inside and outside layer of glue, ply and a steel wire ring composed of tubular rubber parts, after vulcanization molding again and metal flange or parallel joints loose combination sets and. This product can reduce the vibration and noise, and the thermal expansion due to temperature change caused by the shrinkage compensation action, can fundamentally solve all kinds of line interface displacement and axial stretching and different degree of heart and. Widely used in all kinds of pipeline system.
1. Production standard: flange connection standard using GB/T9115.1-2000.
2.Materials: polarity rubber, avoid contact with sharp metal devices, in order to avoid punctured sphere.
3. Bearing capacity: divided into PN0.6, PN1.0, PN1.6, PN2.5 four, and sometimes also called 6 kg, 10 kg, 16 kg, 25 kg.
4. Product model: JGD JGD-B KXT
5. Specification model: DN32-DN3200
6. Product classification: according to the structure can be divided into single ball, double ball, different diameter body, curved sphere and wind pressure coil
7. Medium and the environment: the common type is used for conveying air, compressed air, water, sea water, oil, acid, alkali, etc.. The special type is used for conveying the medium or the oil, the concentrated acid and the solid material, and the solid material, which is more than 30 degrees Celsius to 250 degrees Celsius.
8. Connection: flange connection, clamp connection
Performance characteristics:
1. Small volume, light weight, good flexibility, easy installation and maintenance
2. Large displacement: when the installation can be transverse, axial, angular displacement, from the pipeline is not unreasonable, the flange is not parallel to the limit
3. Vibration absorption ability: work can reduce the structure of transmission noise.
4.The service life is long: the inner seamless high pressure rubber joint can effectively prevent the corrosion of the inner wall of the rubber joint in the high temperature, acid and alkali and greasy pipes.
5. Wide use : Due to the flexible rubber joint has good comprehensive performance, so it is widely used in chemical, construction, water supply, drainage, oil, light and heavy industries, freezing, health, plumbing, fire, electricity, water supply and drainage, circulating water, HVAC, fire, paper, pharmaceutical, petrochemical, marine, water pump, compressor, fan and other piping systems.
Installation method and matters needing attention:
1. When the rubber joint is installed, the super displacement limit installation is strictly prohibited.
2. If the pipeline pressure is too high, the application of the limit bolt will be both ends of the flange together
3. Install the bolts to be symmetric, gradually tightening pressure, to prevent local leakage.
4. 1.6Mpa above working pressure, the installation of bolts to have an elastic pressure pad, in case of work when the bolt is loose.
5. When both ends of the pipeline should be installed in a vertical joint vertical force support, or take the escapement, in order to prevent work pressure.
6.Rubber joints should be kept away from the heat source, the ozone region, is strictly prohibited and the use of strong radiation exposure does not meet the requirements of the media.
7. The rubber joint is strictly prohibited to cut through the surface and the sealing surface when transporting and loading and unloading.
8. Such as overhead use, can be matched with elastic support, installation bolt tightening with diagonal method.
Factory sale flange stainless steel metal bellows pipe expansion joint/compensator