4A Molecular Sieve For Air Brake System
Molecular sieves for automobiles are mainly used for drying the pneumatic brake systems of automobiles, heavy trucks, trains and ships. It has the characteristics of good chemical compatibility, high adsorption capacity, high crushing strength, low dust, and high dry and wet abrasion capacity.
Molecular sieves for pneumatic brake systems can be used as compressed air desiccant in the air brake system of motor vehicles to protect the brake air circuit and avoid safety accidents. This product not only absorbs the moisture in the compressed air, but also makes the desiccant compressed air in the regenerative air storage tank reversely pass through the desiccant through the process of unloading and exhausting the pressure regulating valve in the air circuit, taking away the moisture adsorbed on the surface of the desiccant and discharging it into the air. Atmosphere, to achieve regeneration.
Technical Parameter:
| Model | 4A | |||
| CAS Number |
70955-01-0 |
|||
| Nominal pore diameter | 4 angstroms | |||
| Shape | Sphere | Pellet | ||
| Diameter (mm) | 1.7-2.5(8*12 mesh) | 3.0-5.0(4*8 mesh) | 1.6(1/16 inch) | 3.2(1/8 inch) |
| Size ratio up to grade (%) | ≥98 | ≥98 | ≥96 | ≥96 |
| Bulk density (g/ml) | ≥0.70 | ≥0.70 | ≥0.68 | ≥0.68 |
| Wear ratio (%) | ≤0.20 | ≤0.20 | ≤0.40 | ≤0.40 |
| Crushing strength (N) | ≥35/piece | ≥85/piece | ≥30/piece | ≥70/piece |
| Static H2O adsorption (%) | ≥21.5 | ≥21.5 | ≥21.5 | ≥21.5 |
| Static methanol adsorption (‰) | ≥15 | ≥15 | ≥15 | ≥15 |
| Water content (%) | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 |
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