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.
Materials and Manufacturing
Raw molecular sieve is activated, formed and dried into granules, then regenerated at high temperature before filling to guarantee rated dryness. Filter mesh is stainless steel with stable filtration grade, resistant to refrigerant and lubricant corrosion.
Quality Checkpoints
- Choose core size by system water load and operating cycle
- Match pore size to refrigerant (R134a/R32 etc.)
- For replaceable-core designs choose high-capacity cores to cut long-term cost
- For debris-heavy systems choose cores with pre-filtration mesh
Quality FAQ
- 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.