Molecular sieve can adsorb water in great speed. It is the basic characteristic of molecular sieve.
What’s XH molecular sieve?XH molecular sieve is refrigeration molecular sieve. It can absorb water under low temperature for general usage or special refrigerant.
XH molecular sieve is specialized for refrigeration and air conditioner. It can efficiently adsorb the water of the cryogen to avoid refrigeration system plugged and corroded caused by freezing of the refrigerant. The general type of XH molecular sieve is XH-7, XH-9,XH-11. The general size of XH-7, XH-9, XH-11 refrigeration molecular sieve is dia0.5-0.9mm and dia1.0-1.5mm.
Molecular sieve XH-7
Molecular sieve XH-7 is suitable for drying system of new refrigerant R-134a in household and industrial refrigerators,freezers and air conditioners. It is also suitable for the dehydration and drying of the special refrigerant of tetrane in energy-saving refrigerator.
Technical data sheet of XH-7
| Item | Unit | XH-7 |
| Diameter | Cell | 8*12 |
| Static water absorptio | ≥ %wt | 18.5 |
| Dynamic water absorption | ≥ %wt | 6.0 |
| Bulk density | ≥ g/ml | 0.80 |
| Compression strength | ≥ N | 75 |
| Wearing rate | ≤ %wt | 0.1 |
| Residual water content | ≤ %wt | 1.5 |
Compatibility test with R-134a
| Fluorine content before test | %wt | 0.018 |
| Fluorine content after test | %wt | 0.018 |
Molecular sieve XH-9
Molecular sieve XH-9 is suitable for the drying of various refrigerant except for the mixed refrigerants including difluoromethane. It is a general type of desiccant.
Technical data sheet of XH-9 dia0.5-0.85
| Test item | Unit | Standard | Test result |
| Firing loss | 575℃/1.5h | ≤1.5 | 0.5 |
| Water adsorption | 25℃ 80RH | ≥21.0 | 21.5 |
| Bulk density | G/L | ≥0.75 | 0.815 |
| dusk | PPM | ≤40 | 25 |
| Temp. increase | ℃ | >38 | 45 |
| Gas pre-absorption | ML | ≤50 | 27 |
| Sieving % | % | >0.85 | 0.12 |
| % | 0.5-0.85mm | 99.8 | |
| % | <0.5 | 0.08 |
Compatibility test with R-134a
| Fluorine content before test | %wt | 0.018 |
| Fluorine content after test | %wt | 0.018 |
Molecular sieve XH-11
Molecular sieve XH-11 is used for the dehydration and drying of new refrigerant R407C, R-410A in air conditioners.
Technical data sheet of XH-11 dia0.85-1.4
| Test item | Unit | Standard | Test result |
| Firing loss | 575℃/1.5h | ≤1.5 | 0.5 |
| Water adsorption | 25℃80RH | ≥21.0 | 21.4 |
| Bulk density | G/L | ≥0.75 | 0.819 |
| dusk | PPM | ≤40 | 27 |
| Temp. increase | ℃ | >38 | 43 |
| Gas pre-absorption | ML | ≤50 | 27 |
| Sieving % | % | >1.4mm | 0.01 |
| % | 0.85-1.4mm | 99.73 | |
| % | <0.85 | 0.26 |
Packaging
1.Vacuum packing, carton with 25kgs/carton,
2.Paper drum with 25kgs/drum
3.steel drum with150kgs/drum
