This Type Rubber Expansion Joint is a totally effective SMI’s solution for unwanted vibration in heating and air conditioning systems. Available in the common HVAC, Plumbing and Fire Fighting pipeline sizes, it is ideal for motion compensation, vibration elimination, and noise control and stress relief.
Manufactured to a fully moulded spherical design the style has a high pressure rating with the added benefit of a non-clogging, long radius Arch. Available in Natural rubber and many different polymers like EPDM, Neoprene, Nitrile, and Butyl having a wide range of flange drilling standards to your building services requirements.
Type Floating Flange is designed as per the latest International Standards of FSA and EJMA (USA) which are used all over the world. Further, the most beneficial advantage is that if replacement is required it can be replaced without distributing the welded flange due to floating/rotating flange design.
| Size I.D (mm) | Standard F/F length (mm) | Operating Condition | Expressio n Joints Style | |||
| Axial Comp n (mm) | Elongat ion (mm) | Lateral (mm) | Angular Degrees | |||
| 25 | 150 | 13 | 12 | 13 | 15° | SI 400 |
| 32 | 150 | 13 | 12 | 13 | 15° | SI 400 |
| 40 | 150 | 13 | 12 | 13 | 15° | SI 400 |
| 50 | 150 | 13 | 12 | 13 | 15° | SI 400 |
| 65 | 150 | 13 | 12 | 13 | 15° | SI 400 |
| 80 | 150 | 13 | 12 | 13 | 15° | SI 400 |
| 100 | 150 | 16 | 12 | 16 | 15° | SI 400 |
| 125 | 150 | 16 | 12 | 16 | 15° | SI 400 |
| 150 | 150 | 16 | 12 | 16 | 15° | SI 400 |
| 200 | 150 | 16 | 12 | 16 | 15° | SI 400 |
| 250 | 200 | 16 | 15 | 16 | 15° | SI 400 |
| 300 | 200 | 16 | 15 | 16 | 15° | SI 400 |
| 350 | 200 | 16 | 15 | 16 | 15° | SI 400 |
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Maximum Temperature Maximum Pressure Vacuum Rating |
115°C (Neoprene/EPDM) 16 bar Full vacuum (26”Hg) |
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Working pressure depends on temperature and at higher temperature and at higher temperature, the pressure ratings are reduced slightly |
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BS Table D / E / F ANSI B16.5 Class 125 / 150 BS 4504 / DIN 2501 or as per customer requirement
Elastomers
Neoprene – Provides excellent resistance to oxidation, ozone and sunlight ageing. Good resistance to oil.
EPDM
Good for hot and cold water service and chemicals.
Flanges
'Expansion joints are furnished with zinc plated steel flanges. They rotate easily on the bellow which allows for simple bolt alignment.
Control Units
Tie rods and gusset plates are normally recommended and can be supplied along with the bellows.
Warning:
Control unit must be used unless piping is properly anchored. When Expansion joints are installed in pipelines or equipment carrying fluids and gases at a elevated temperatures and pressures, precautions should be taken to ensure proper installation and regular inspection. Care is required to protect personnel in the event of leakage or splash.
Note: Maximum pressures rating is based on 40 C operating temperature.
Due to policy of continual improvement, the specifications are subject to change without prior notice.
Measurements are subject to 5% tolerance.