Can I mix Qishanr refrigeration oils with existing compressor oil without causing system failure?

Qishanr products are formulated according to ISO viscosity grade standards. POE oils compatible with HFC refrigerants (R134a, R404A, R407C, R410A) are miscible with existing POE lubricants but NOT compatible with mineral oils in HFC systems. Mineral oils (MO series) designed for R22, R717, R290 are compatible with alkylbenzene (AB) oils but require complete system flushing when converting to POE-based HFC systems. Cross-contamination between incompatible oil types causes phase separation and bearing lubrication failure.

Will using Qishanr aftermarket refrigeration oil void my OEM compressor warranty?

Under the Magnuson-Moss Warranty Act (15 U.S.C. §2302), OEM compressor manufacturers cannot void warranties solely for using aftermarket lubricants unless they prove the specific oil caused the failure. Qishanr lubricants manufactured to meet OEM specifications (viscosity per ASTM D445, acid value per ASTM D974, moisture content ≤30ppm) maintain warranty coverage when correct viscosity grade matches OEM recommendations and oil type matches refrigerant requirements. Documentation includes MSDS and technical data sheets as specification compliance proof.

Which refrigerants are compatible with Qishanr refrigeration lubricants?

Product compatibility covers HFC refrigerants (R134a, R404A, R407C, R410A), HCFC refrigerants (R22, R502, R123), CFC refrigerants (R12, R13, R503), natural refrigerants (R717 ammonia, R290 propane, R600a isobutane), and HFO refrigerants (R1233zdE, R1234yf), depending on product line and base oil type.

What moisture control measures does Qishanr implement for POE oils?

All Qishanr POE refrigeration oils are packaged with factory moisture content ≤30 ppm (versus industry baseline ≤100 ppm) and sealed containers. Low acid value formulation (≤0.05 mg KOH/g per ASTM D974) prevents acidic compound formation. Installation best practices include nitrogen blanketing during transfer, immediate resealing of opened containers, storage in cool dry environments per NFPA Class IIIB protocols, and mandatory filter-drier replacement during oil changes.

Does Qishanr provide batch-specific test reports and Certificates of Analysis?

Standard documentation includes Material Safety Data Sheets (MSDS), Transportation Identification Reports, technical specification sheets with ASTM test method references, and Certificates of Origin (CO) for customs clearance. Batch-specific Certificates of Analysis (COA) with unique lot numbers, production dates, and test result data are available upon request for regulatory compliance applications including HACCP, FDA 21 CFR, and ISO 9001-certified installations. Contact info@qishanr.com or +86-186-6560-5628 with order number and product SKU for COA requests.

Which compressor types are compatible with Qishanr refrigeration oils?

Product applications cover screw compressors, scroll compressors, reciprocating compressors, rotary compressors, centrifugal compressors, semi-hermetic compressors, and piston compressors, depending on lubricant viscosity grade and refrigerant pairing.

What technical test standards are referenced in Qishanr product specifications?

Product specifications reference ASTM D445 (kinematic viscosity), ASTM D97 (pour point), ASTM D92 (flash point COC), ASTM D1298 (density), ASTM D2270 (viscosity index), ASTM D974 (acid number), ASTM D1120 (boiling point), ASTM D6304 (water content), and ASTM D4740 (refrigerant-lubricant miscibility).

What certifications and compliance documentation does Qishanr maintain?

Stated certifications include CE marking for European Economic Area market access, RoHS compliance for hazardous substance restrictions, SGS third-party certification, Material Safety Data Sheets (MSDS), Transportation Identification Reports, and Certificates of Origin (CO) for export documentation. Products classified as not hazardous under 29 CFR 1910.1200 OSHA standards with NFPA Class IIIB storage designation.

What type of refrigeration oil should I use for my screw compressor?

Screw compressors typically require POE (Polyol Ester) oils for HFC refrigerants like R134a and R407C, or mineral oils for HCFC systems like R22. The viscosity grade (usually ISO VG 32-68) depends on the compressor manufacturer's specifications. Brands like Bitzer recommend BSE series POE oils, while FUSHENG systems often use mineral oil formulations.

What is the difference between POE and mineral refrigeration oil?

POE (Polyol Ester) oils are synthetic lubricants designed for HFC refrigerants (R134a, R404A, R407C, R410A) and are hygroscopic, requiring careful moisture control. Mineral oils (MO) are petroleum-based, used with CFC and HCFC refrigerants (R22, R502), and are less expensive but incompatible with modern HFC systems. POE oils offer better thermal stability and miscibility with newer refrigerants.

How do I select the right refrigeration oil for a centrifugal chiller?

For centrifugal chillers, select oil based on the OEM specification (e.g., Trane OIL00037, York PureOil S), the refrigerant type (R123 low-pressure or R134a medium-pressure), and the required viscosity grade. Most modern centrifugal chillers use POE oils with ISO VG 32-68. Always verify compatibility with the chiller manufacturer's technical bulletin and ensure the oil meets the required pour point for your operating conditions.

What series of refrigeration oils can you supply?

POE, PAG, PVE, PAO, AB, MO, Environmental Refrigeration Oil.

Do you support OEM services?

Yes. Custom packaging and material selection are available.

Can I replace my current oil with yours?

Yes. Please provide your original unit model, and we will recommend the equivalent type after technical analysis.

Why choose to cooperate with you?

Full product range for mid‑to‑high end compressors, performance matches international top brands. Stable quality with independent R&D synthetic esters and complete export certificates. Strong technical support, OEM/ODM, logistics and export compliance assistance. Stable supply and long‑term price advantages.

Can I be an agent/distributor of your refrigeration oils?

Yes. We are looking for global partners with market protection support. Welcome to be our agent if your region is available.

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