AAP EPDM rubber bellow, 2-1/2"
Available
This AAP EPDM rubber bellow is drilled to Table E. It is supplied in 16 sizes from 1-1/4" (32mm) to 24" (600mm). A rubber bellow is a flexible joint moulded in a spherical shape from heat-resisting synthetic elastomer, with metal floating flanges. Installed in a piping system, it absorbs movement in three directions: axial (elongation and compression along the centre line), lateral (offset from the centre line) and angular (bending about the centre line).
The body is EPDM, rated -30 to +120 °C, with a nylon cord fabric lining and a hard steel wire frame. Applications: air, compressed air, water, sea water, hot water and weak acid.
Where this product is used
- Absorbing axial, lateral and angular pipe movement
- Flexible connections at pumps and other equipment
- Compressed air, water, sea water and hot water lines
- Weak acid duties, subject to chemical resistance
Features
- 16 sizes from 1-1/4" (32mm) to 24" (600mm)
- EPDM body, -30 to +120 °C
- Flange drilling: AS2129 Table E
- Absorbs axial, lateral and angular movement, with 15° angular deflection on all sizes
- Bursting pressure 6,000 kPa and vacuum rating 86.7 kPa
- Moulded spherical body with nylon cord lining, steel wire frame and metal floating flanges
- EPDM resists animal and vegetable oils, ozone and strong oxidising chemicals
Key specifications
| Specification | Detail |
|---|---|
| Brand | AAP |
| Product | Rubber bellow (flexible rubber joint) |
| Rubber | Ethylene-propylene-diene terpolymer (EPDM), ASTM D1418-64 designation |
| Flange drilling | AS2129 Table E |
| Construction | Spherical moulded body in heat-resisting synthetic elastomer with a nylon cord fabric lining, a hard steel wire frame and metal floating flanges |
| Temperature range | -30 to +120 °C |
| Bursting pressure | 6,000 kPa |
| Vacuum rating | 86.7 kPa (vacuity) |
| Working pressure | 1,600 kPa for DN32 to DN300, 1,000 kPa for DN350 to DN450, 600 kPa above that (see table) |
| Movements absorbed | Axial compression and elongation, lateral displacement and angular deflection |
| Angular deflection | 15° on all sizes |
| Sizes | 1-1/4" (32mm) to 24" (600mm) (16 sizes) |
Choosing the right option
Match the flange drilling to the flanges on your pipework: this bellow is drilled to Table E (AS2129). EPDM is not suited to mineral oils, solvents or aromatic hydrocarbons, so choose an NBR bellow for those duties. Working pressure steps down with size: 1,600 kPa up to DN300, 1,000 kPa for DN350 and DN400 and 600 kPa for DN500 and DN600.
Related AAP products: AAP EPDM Rubber Bellow, Table E x BS4504 PN16, AAP NBR Rubber Bellow, Table E, AAP EPDM Rubber Bellow, Table D, 10" (250mm), AAP NBR Rubber Bellow, ANSI B16.5 Class 150.
| Option | Part number | SKU |
|---|---|---|
| 1-1/4" | RB32 | A0081272 |
| 1-1/2" | RB40 | A0081273 |
| 2" | RB50 | A0081274 |
| 2-1/2" | RB65 | A0081275 |
| 3" | RB80 | A0081276 |
| 4" | RB100 | A0081277 |
| 5" | RB125 | A0081278 |
| 6" | RB150 | A0081279 |
| 8" | RB200 | A0081280 |
| 10" | RB250 | A0081281 |
| 12" | RB300 | A0081282 |
| 14" | RB350 | A0081283 |
| 16" | RB400 | A0081284 |
| 18" | RB450 | A0081285 |
| 20" | RB500 | A0081286 |
| 24" | RB600 | A0081287 |
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AAP EPDM Rubber Bellow, Table E: 2-1/2"
SKU: A0081275 | Model: RB65
AAP RB65: AAP EPDM rubber bellow, 2-1/2". Pipe Size (inch): 2-1/2. Pipe Size (mm): 65. Axial Compression: 13.

