SINOPEC 4521-1 Semi-synthetic Refrigeration Compressor Oil is the lubricant dedicated to ammonia refrigeration system and blended with semi-synthetic base oil of special structure and high efficiency additive without acid.

Advantages

♦ Excellent low temperature fluidity, ensuring little oil entered system returning back to compressor

♦ Relatively high viscosity index, ensuring good lubricity and sealing of equipment in wide temperature range

♦ Relatively low acid number, not likely to react with refrigerant to produce harmful mater such as deposit

♦ Good anti-rust and anti-corrosion performance, preventing parts of compressor from corrosion

Applications

♦ Suitable for lubrication of rotary screw, reciprocating and rotary vane compressors in ammonia refrigeration system in food and chemical engineering industries

♦ Applied temperature range: -35 ºC~100 ºC, possibly reaching 130 ºC in short time

Typical properties