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.

Language

Back

Home

Products

Download

About Us

Cases

News

Get a Quote

Back

POE Refrigeration Oil

PAG Refrigeration Lubricants

AB Refrigeration Oil

MO Refrigeration Oil

Vacuum Pump Oil

Environmental Refrigeration Oil

Who We Are

What We Do

Our Mission

Enterprise Culture

Why Partner With Us

Customer Reviews

FAQ

Blog

Get a Quote

Search History

SL-100S

Sunice SL-100S

SUNOCO Refrigeration Oil Sunice SL-100S

Solest 68

Carrier PP23BZ110005C

About Us

QISHANR supplies compressor refrigeration oil, and industrial lubricants from Foshan, Guangdong for HVACR maintenance, OEM fill and repair channels.We make refrigeration lubricants for B2B buyers who need stable quality and repeat supply.

6000

tons

Production capacity

10+

years

History

28+

regions

Export Countries

Qishanr Refegrigeration lubricants series

Our Mission

Our Mission: Sustainable Cooling

We believe that sustainable development is the foundation of our corporate strategy. Our mission is to balance economic growth with environmental responsibility, meeting the needs of current and future generations by providing high-efficiency refrigeration solutions.

Eco-Innovation

Continuous investment in R&D to develop low-GWP (Global Warming Potential) and energy-efficient synthetic lubricant formulations.

Safe Operations

Adhering to strict safety standards (29 CFR 1910.1200), ensuring all products are safe for handling, transport, and long-term use.

Quality Stability

Precision manufacturing processes that ensure batch-to-batch consistency, reducing waste and protecting our partners' compressors.

Global Vision

Promoting internationalization by aligning our production standards with global environmental and quality benchmarks.

Turning Vision into Action

At Qishanr, our commitment to sustainability is integrated into every stage of the lubricant lifecycle:

Responsible Production: Implementing advanced production technologies to minimize emissions and resource consumption in our Guangzhou facility.
Lifecycle Efficiency: Designing oils that improve compressor thermal efficiency, effectively reducing the overall energy consumption of refrigeration systems.
Technical Stewardship: Through our consultancy services, we help clients optimize oil selection, preventing premature equipment failure and reducing the environmental footprint of waste oil.
Community & Industry Growth: Fostering long-term collaboration based on mutual benefit, helping global partners achieve their own green transformation goals.