Hitachi, a leading global manufacturer of electrical and industrial equipment, offers a wide range of refrigeration oils to meet the needs of different refrigeration systems. Refrigerator oils are essential for the proper functioning of refrigeration systems, providing the necessary lubrication for the compressor, helping to dissipate heat and preventing wear and tear on internal components, and are mainly used in central air-conditioning, refrigeration, cold storage and other applications.
Chi tiết vụ án
The characteristics of Hitachi refrigeration oil mainly include the following:
Good compatibility with refrigerants: Hitachi refrigeration oils have good compatibility with HFC (e.g. R134a, R404A, R407C, R410AR, 507, R23, R508A, R508B) and HCFC (e.g. R22, etc.) refrigerants, and are also compatible with CFC refrigerants.
Excellent chemical and thermo-oxidative stability: these refrigeration oils do not decompose easily at high temperatures and resist thermo-oxidative processes, avoiding the formation of carbon and acids, which helps to prolong the service life of the refrigeration system.
Good Electrical Insulation: Due to the good electrical insulation properties of Hitachi refrigeration oils, they can be used safely in a variety of hermetically sealed compressors without leakage.
Low pour point and good viscosity-temperature characteristics: Hitachi refrigeration oils have a low pour point, usually about 10°C below the freezing temperature, which allows them to remain fluid at low temperatures and ensures the efficient operation of refrigeration systems.
Wax-free and less prone to clogging: These refrigeration oils are wax-free and less prone to forming clogs in the system, which is essential to keeping the refrigeration system clean and unclogged.
Environmentally friendly: With the need for environmental protection in mind, Hitachi refrigeration oils are also designed and manufactured with an eye to their environmental friendliness, such as Emkarate RL220H, a synthetic polyol ester (POE) lubricant designed specifically for refrigeration and air-conditioning compressors that use HFC-based refrigerants.
Common Models:
UX-300
Viscosity grade: 32
Viscosity Index (VI): 120-140
Pour Point: < -45°C
Flash point: > 200°C
Density (at 20°C): 0.96 g/cm³
Water content: < 50 ppm
Acid value (mg KOH/g): < 0.05
Oxidation stability (tested at 175°C): < 0.1% precipitate
Refrigerants: R22, R404A, R507
Characteristics:
Wide temperature adaptability, suitable for applications from low to high temperature environments.
Application Scenarios:
Supermarket coolers, refrigerated display cabinets, air conditioning systems and heat pump applications.
FVC-32D
Viscosity grade: 32
Viscosity Index (VI): 130-150
Pour Point: < -45°C
Flash point: > 200°C
Density (at 20°C): 0.96 g/cm³
Water content: < 50 ppm
Acid value (mg KOH/g): < 0.05
Oxidation stability (tested at 175°C): < 0.1% precipitate
Refrigerants:R134a, R407C, R410A
Characteristics:
Excellent antioxidant performance, which can maintain the quality of the oil for a long time and reduce the frequency of maintenance.
Application Scenarios:
Domestic air-conditioning systems, commercial air-conditioning systems, heat pump applications.
BF-32H
Viscosity grade: 32
Viscosity Index (VI): 120-140
Pour Point: < -50°C
Flash point: > 220°C
Density (at 20°C): 0.96 g/cm³
Water content: < 50 ppm
Acid value (mg KOH/g): < 0.05
Oxidation stability (tested at 175°C): < 0.1% precipitate
Refrigerants: R134a, R407C, R410A
Characteristics:
Good compatibility with seal materials:The oil is compatible with common sealing materials (e.g., rubber, plastic, etc.) and will not cause expansion or contraction, thus ensuring system sealing and reliability.
Application Scenarios:
Split air conditioners, window air conditioners, heat pump systems, food processing, cold chain logistics, and freezers and cooling systems in the pharmaceutical industry.
