Import Air Filter Qaf Series — Buy in Bulk from Supplier in China

The QAF Series is a dedicated particulate and coalescing air filter intended for inline installation within compressed air distribution systems. Unlike combination FRL units, it performs filtration alone, removing bulk water, oil aerosols, and solid contaminants downstream of the compressor and before sensitive pneumatic equipment. The design emphasises high contaminant holding capacity within a compact housing suitable for both indoor plant installations and sheltered outdoor compressor housings. Port configurations and flow ratings typical for general industrial filtration apply, though exact connection sizes and maximum flow in standard litres per second must be confirmed directly with the supplier. The housing material and seal compatibility with synthetic compressor lubricants are additional points to clarify before specification.

Filter media in this class of product is generally a borosilicate glass fibre pleated element with hydrophobic treatment for water rejection, or a wrapped cellulose blend for lower duty cycles. The QAF Series housing is likely die-cast aluminium with a twist-lock or bolted bowl retention mechanism, which is standard across many Asian-manufactured industrial filters. Differential pressure indicators, either visual or electrical, are common options but not always standard. Drain configuration, whether manual ball valve, semi-automatic, or fully automatic float type, significantly affects maintenance labour and the risk of condensate carryover. Buyers should also establish whether the filter is rated for oil coalescing or particulate removal only, as these require different test standards and element constructions.

Target markets include metalworking shops with high coolant mist exposure, powder handling plants where particulate contamination is severe, and any facility where point-of-use filtration protects valve spools and cylinders. The QAF Series suits maintenance departments and OEMs building compressor packages or air treatment skids. When importing from Shanghai Sunfine Filtration Technology Co.,Ltd, clarify the filter's tested performance to ISO 12500 or equivalent, the verified flow rate at a given pressure drop, and whether multiple housing sizes share common element diameters to simplify spare parts inventory. Also confirm if the unit arrives with mounting brackets and if the element is pre-installed or packaged separately for transport.

Shanghai Sunfine Filtration Technology Co.,Ltd operates from Room 702, Unit 3, No.388 Pangu Road, Baoshan District, Shanghai 201900, China. The company's trust tier is listed as 'harbor', which is an entry-level verification status. A response rate of 0.00% and zero recorded average response hours are significant red flags for buyers who require prompt pre-sales technical support or after-sales service. Prospective importers should not assume active account management and may need to engage a sourcing agent in Shanghai to bridge communication gaps and conduct on-site verification.

No information is provided in this listing about the company's founding year, factory ownership, production capacity, quality management system registration, or named customers. References to ISO and SGS in the source text lack certificate numbers, scopes, or expiry dates, and therefore cannot be relied upon without independent verification. The supplier's specialisation in filtration technology suggests the QAF Series is within its claimed product range, but buyers should request a factory acceptance test report and a sample unit to confirm manufacturing consistency. Due diligence through a third-party audit or a video factory inspection is advisable before committing to volume orders.