Intermech Sealing Solutions

Intermech Sealing Solutions (Pty) Ltd - Rubber Bellows

Bodies are internally reinforced with synthetic material cloth and metal rings to assure a high mechanical resistance while operating at a positive internal pressure or vacuum.

Intermech Rubber Expansion Joints are supplied from ND 1.1/4" (32mm) up to ND 80" (200mm), being recommended to operate up to 225 PSIG (16 Kgf/cm) and 250 °F (120°C), according to the specific model. For different models and other diameters, pressure and/or temperatures, please contact us.

Features

  • Compensation for displacements with small installation lengths and low spring forces.
  • Corrosion resistant.
  • High absorption of mechanical and sonorous vibration.
  • Low weight.
  • Exempt of sealing joints.
  • Not-welded end connections.
  • Electrical discontinuity.
  • Excellent ability to resist heat, water, weather and severe atmospheric conditions.

Applications

  • Air-condition systems.
  • Pumps, air compressors, blowers, etc.
  • Industrial piping systems.
  • Marine piping systems.
  • Sanitary systems.
  • Any piping system where it is necessary to compensate thermal displacements.

Pressure / Temperature

The allowable operating pressure (P) shown on dimensional table, correspond to temperatures up to 250°F (120°C). Find below the vibration of pressure resistance according to the operating temperature, the test pressures and the minimum burst pressures of the Intermech Rubber Expansion Joints.

OPERATING TEMPERATURE PRESSURE RESISTANCE
Up to 250°F (120°C) 100% P
Hydrostatic Test Pressure (Max) at 70°F (20°C) 1.5 x P
Burst Pressure (Min.) at 70°F (20°C) 3.0 x P

Rubber Identification

The different rubbers employed in the manufacturing of Intermech expansion joints, are identified with circular coloured labels placed at external surfaces of bodies, as follows:

RUBBER IDENTIFICATION
Internal External
Chloroprene Chloroprene Black
EPDM EPDM Red
Nitrile (BunaN) Chloroprene Yellow
Hypalon Chloroprene Green
Natural Chloroprene Grey

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