Union Type Double Sphere Epoxy Flexible Rubber Joints for Steel Mills
Union Type Double Sphere Flexible Rubber Joints
Description:
Rubber Expansion Joints are designed for piping systems to absorb pipe movements, relieve stress, reduce system noise/vibration, compensate for misalignment/offset and to protect rotating mechanical equipment against start-up surge forces.
Because of rubber has superior capability in resistance of acid, alkali, oil, and electrolytic, Rubber Expansion Joint has become one of the alternatives of stainless steel and been successfully installed in tough demanding applications such as: Chemical/Petrochemical, Marine, Power Generation, Pulp/Paper, Steel Mills and Water/Wastewater Treatment.
Specifications:
Type: Double spheres or arch
Connector Approval: Flanged, flange type Threaded, Union type Rubber Joint
Construction: Inner core, Outer cover, Frame, Metallic ring, M. I. union or Carbon steel flange
Ends: flange ends.
Surface: Galvanized, Epoxy
Size: DN32 to DN2000mm
Usage: Protecting piping and equipments systems from stress or motion
Table of Materials:
| NO. | Part | Material | ||
| 1 | Main body | Polarizde rubber | ||
| 2 | Lining | Nylon cord fabric | ||
| 3 | Union | Malleable iron or Steel | ||
Technical Condition:
| Working pressure | 1.0Mpa(10kgf/cm2) | Deflecting angle | (a1+a2)45 | |
| Bursting pressure | 3.0Mpa(30kgf/cm2) | Vacuity | 53Kpa(400mm Hg) | |
| Applicable temp.C | 10-80 | |||
| Applicable media | Air,Compressed air,Water,Sea water,Hot weak acid,etc. | |||
Table of Main Parameters of Normal Core Diameter,Length,Displacement Value and Flange:
| Normal core diameter DN |
L(mm) L Value | Axial displacement (mm) |
Lateral displacement (mm) |
||
| (mm) | (in.) | Stretch(mm) | Compression | ||
| 15 | 1/2 | 200 | 5-6 | 22 | 22 |
| 20 | 3/4 | 200 | 5-6 | 22 | 22 |
| 25 | 1 | 200 | 5-6 | 22 | 22 |
| 32 | 1.1/4 | 200 | 5-6 | 22 | 22 |
| 40 | 1.1/2 | 200 | 5-6 | 22 | 22 |
| 50 | 2 | 200 | 5-6 | 22 | 22 |
| 65 | 2.1/2 | 240 | 5-6 | 22 | 22 |
| 80 | 3 | 240 | 5-6 | 22 | 22 |
Schematic diagram of displacement and deflection of floating flange rubber expansion joints.
