The molecular sieve core is the consumable heart of a filter drier and directly determines system drying capacity. Kilterra molecular sieve uses 3A/4A zeolite with precise pore size and strong water adsorption, paired with high-precision filter mesh for continuous, reliable drying protection.
How It Works
3A molecular sieve has a pore size of about 3 angstroms: only water molecules pass through and are adsorbed, while refrigerant and lubricant molecules are kept out - selective adsorption. 4A has larger pores and can also pick up some contaminants. Adsorption is physical: water is locked inside the crystal cage and keeps working until saturated.
Key Applications
- Commercial refrigeration and air conditioning
- Automotive air conditioning
- Heat pump systems
- Cold-chain transport and refrigeration
- Ice makers
Frequently Asked Questions
- Can a molecular sieve core be reused? - No. Once saturated it must be replaced; regeneration costs more than a new core.
- What is the difference between 3A and 4A? - Pore size: 3A adsorbs water only (more professional), 4A also picks up some debris.
- How often should the core be replaced? - Same as the filter drier: 2-3 years or after major repair.
- How should cores be stored? - Sealed and dry; use promptly after opening.
For 37 years Kilterra has focused on one thing: build refrigeration components right, deliver them on time. Molecular Sieve Core supports OEM/ODM customization - factory visits, sample testing and volume partnerships are welcome.