Asbestos Free(AF) Fibre Jointing Sheets - AF 139
Compressed fibre jointing sheet with aramid and inorganic fibres with NBR binder
Champion Jointing Style AF 139 is higher performance BS7531 Grade-X Asbestos-Free (AF) Jointing sheet. It is comprised of compressed aramid fibres and bonded with a combination of functional fibres with a nitrile rubber binder to create a matrix of stability for thermal and chemical medium service.
Champion AF 139 Sheets are available in non-metallic and also in metallic option (with wire re-inforcement and anti-stick properties- which minimizes adhesion of the gasket to flange surfaces even at elevated temperatures, resulting in reduced removal time). This grade is produced in orange color.
Champion Jointing AF139 is very popular as soft cut gasket for wide range of media.
Hyrdocarbons-oils, solvents, steam, gases, glycols, aqueous solutions. (medium service conditions).
Sheets, pre-cut gaskets, special density, thickness, shape or grade available on request.
| Available Sheet Sizes in mm (+/- 5%) |
1600 mm x 1500 mm |
|---|---|
| 1500 mm x 2000 mm | |
| 1600 mm x 4500 mm | |
| 2000 mm X 6000 mm | |
| Thickness(mm) | 0.4/0.5 mm; 0.75/0.8 mm; 1.0 mm; 1.5 mm; 2.0 mm;3.0 mm; 4.0 mm; 5.0 mm |
| Description | Standard Specs | Typical Values |
|---|---|---|
| Density | DIN 28090-2 | 1.8-2.0 g/cm3 |
| Tensile Strength | ASTM F 152 | ≥10 MPa / 100 Bar (1450 psi) |
| Compressibility | ASTM F 36 | 8% to 12% |
| Residual Stress | BS 7531 | ≥26 MPa /260 Bar (3770 psi) |
| Gas Permeability | BS 7531 | <0.5 cc/min |
| Recovery | ASTM F 36 | ≥40% |
| Water Absorption | BS 7531 | ≤5% |
| Ignition Loss | DIN 52911 | ≤35% |
| Description | Standard Specs | Typical Values |
|---|---|---|
| Weight Increase | ASTM Oil No.3 : 5hr/150°C(300°F) | <10% |
| ASTM Fuel B : 5hr/23°C(73.4°F) | <10% | |
| Thickness Increase | ASTM Oil No.3 : 5hr/150°C(300°F) | <10% |
| ASTM Fuel B : 5hr/23°C(73.4°F) | <10% |
Champion Gasket
Style AF 139
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