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3A Molecular Sieve, is an alkali metal alumina silicate. It is the potassium form of the type A crystal structure. It has an effective pore opening of about 3 angstroms(0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers.
"Packing-mall" 3A Molecular Sieve, has the advantages of faster adsorption speed, more regeneration times, higher crushing strength, stronger anti-pollution ability, greater utilization efficiency and longer service life.
4A Molecular Sieve, is an alkali alumina silicate. It is the sodium form of the type A crystal structure. It has an effective pore opening of about 4 angstroms(0.4nm). It will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger.
"Packing-mall" 4A Molecular Sieve, the pore size distribution is very uniform, has very good adsorption properties and good oil adhesion, and has a certain buffer alkalinity effect. It is non-toxic, safe and reliable to human body, and has no adverse effects on ecosystem.
5A Molecular Sieve, is an alkali alumina silicate. It is the calcium form of the type A crystal structure. It has an effective pore opening of 5 angstroms(0.5nm). It will adsorb molecules with a kinetic diameter of less than 5 angstrom and exclude those larger.
"Packing-mall" molecular sieve psa 13X is the sodium form of the type X crystal and has a much larger pore opening than the type A crystals. It will adsorb molecules with a kinetic diameter of less than 9 Angstrom (0.9 nm) and exclude those larger.
It also has the highest theoretical capacity of the common adsorbents and very good mass transfer rates. It can remove impurities too large to fit into a type A crystal and is commonly used to separate nitrogen from oxygen.
Type | Packing-mall Molecular Sieves | ||||
Shape | Pellet / Cylindrical | Sphere / Beads | |||
Size | 1/16’’ 1/8’’ | 1.6-2.5mm 3.0-5.0mm 4.0-6.0mm | |||
Type | 3A | 4A | 5A | 13X | 13X-APG |
Bulk density (g/ml) | ≥0.70 | ≥0.70 | ≥0.70 | ≥0.62 | ≥0.62 |
H2O capacity (%) | ≥21 | ≥21.5 | ≥22 | ≥25 | ≥27 |
CO2 adsorption (%) | - | - | - | ≥18 | ≥18.5 |
Water content (%) | ≤1.2 | ≤1.2 | ≤1.2 | ≤1.2 | ≤1.2 |
Wear ratio (%) | ≤0.30 | ≤0.30 | ≤0.10 | ≤0.10 | ≤0.10 |
Size ratio up to grade (%) | ≥98 | ≥98 | ≥96 | ≥96 | ≥98 |
Remarks: The data is for Sphere / bead, if need pellet data please contact us. | |||||
Warranty: By National Standard HG/T 2690-2012.
Free consultation during the warranty period.
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Other Molecular Sieve for PSA / VPSA equipment:
Carbon Molecular Sieve Size: 0.95mm, 1.1-1.3mm, 1.6mm |

Package | 25kg/carton | 30kg/paper drum | 150kg/steel drum | |
1 Pallet | Quantity | 750kg / 1,650lbs | 540kg / 1,188lbs | 600kg / 1,320lbs |
Delivery Time | 2~3 days | 2~3 days | 2~3 days | |
20’ feet | Quantity | 15,000kg / 33,000lbs | 10,800kg / 23,760lbs | 12,000kg / 26,400lbs |
Delivery Time | 7~10 days | 7~10 days | 7~10 days | |
Remarks: The data is for ocean freight, and pallet size is 1.1*1.1*0.1mm | ||||
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