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.

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SL-100S Sunice SL-100S SUNOCO Refrigeration Oil Sunice SL-100S Solest 68 Carrier PP23BZ110005C

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Emkarate SUNOCO Refrigeration Oil Sunice SL-100S DB OIL 18 What is danfoss refrigeration oil? CPI

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About Us

we specialize in designing and manufacturing advanced food processing machines that enhance productivity, reduce waste, and maintain the highest hygiene standards. With years of expertise in the industry, we provide cutting-edge solutions for sorting, cutting, cooking, and packaging—helping food producers optimize their operations.

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Perché noi

Copertura mondiale +: rete di vendita per la distribuzione facilmente accessibile.
Garanzia OEM per le principali marche del settore HVACR. Garanzia di qualità.
Servizio intimo: servizio di consulenza per la selezione e l’applicazione di olio freddo.
Soluzione completa di lubrificanti: compatibile con tutti i refrigeranti HFC (ad es. R-125, R-134a, R-143a, R-152a, R404A, R-407C, R-410A e R-507A), Qishanr QSL presenta un’eccezionale miscibilità anche a temperature estremamente basse.