Qishanr Refrigeration Oil--3GS & 4GS

By Qishanr Lubricants November 13th, 2025 327 views

Core Positioning

  • Product Type: Regular MO-type refrigeration oil
  • Target Application: Commercial & residential refrigeration, air conditioning systems
  • Compatible Compressors: Reciprocating, scroll, screw types
  • Formula: Synthetic naphthenic refrigeration lubricant

Key Technical Parameters

Product Kinematic Viscosity (40℃) Kinematic Viscosity (100℃) Density (20℃) Pour Point
3GS 29cSt 4.2cSt 933kg/m³ -36℃
4GS 56cSt 6.1cSt 925.7kg/m³ -33℃


Key Performance Advantages

1. Wide Compatibility

  • Compatible Refrigerants: CFCs, HCFCs, R717, R600a, R290
  • Advantage: Adapts to equipment of different ages and specifications, reducing oil replacement frequency and costs.

2. Strong Operational Stability

  • Base Oil: Highly refined naphthenic oil
  • Features: Excellent chemical and thermal stability, maintains stable viscosity under alternating high and low temperatures.
  • Benefit: Avoids oil deterioration and sediment formation, ensuring clean compressor operation.

3. Outstanding Low-Temperature Performance

  • Pour point of 3GS (-36℃) and 4GS (-33℃) ensures good fluidity in low-temperature environments.
  • Benefit: Reduces startup resistance, guarantees normal startup and operation under extreme cold conditions.

4. Precise Load Adaptability

  • 3GS (lower viscosity): Suitable for low-load equipment (home AC, small fridges), balancing lubrication and energy efficiency.
  • 4GS (higher viscosity): Fits medium-load commercial units (supermarket freezers, catering refrigeration systems), supporting high-intensity operation.


Application Scenarios

Scenario Type Specific Equipment
Residential & Commercial AC Wall-mounted AC, central AC, multi-split systems
Small Refrigeration Convenience store freezers, household fridges
Medium-Sized Units Small supermarket refrigeration systems, office centralized cooling

Brand Guarantee

  • Company: Guangzhou Qishanr Technologies Co., Ltd. (specializes in mid-to-high-end refrigeration lubricants R&D, production, sales)
  • Support: Professional product selection technical support
  • Packaging: 200L drum, 20L pail, 4L×6 carton, 1L×10 carton
Qishanr 3GS/4GS combine professional parameters and practical design, providing reliable lubrication solutions for various refrigeration needs.

Copyright & Citation Notice

Original publication. This article, “Qishanr Refrigeration Oil--3GS & 4GS”, was originally published by QishanrLubricants on 2025-11-13 at qishanrlubricants.com. © 2026 QishanrLubricants. All rights reserved.

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