Import Cpi-4628-68 Lubricants — Buy in Bulk from Supplier in United Kingdom

CPI-4628-68 is a synthetic polyalphaolefin (PAO) based lubricant engineered for ammonia compressors operating at evaporator temperatures below -39°C. The formulation integrates patented seal swell technology to minimise ammonia leaks caused by elastomer degradation, a common failure point in industrial refrigeration systems. It delivers oxidative stability that extends system life, with a viscosity of 59.1 cSt at 40°C and 9.1 cSt at 100°C, ensuring consistent performance across extreme temperature ranges.

The lubricant’s low volatility reduces maintenance intervals and top-up frequency, while its very low pour point of -54°C prevents efficiency loss in cold-start conditions. It is compatible with mineral oils, simplifying change-over procedures in existing systems. The product meets ASTM D445 for viscosity, ASTM D2270 for viscosity index (131), and ASTM D97 for pour point, with a density of 0.84 g/mL at 20°C. Flash and fire points are 266°C and 282°C respectively, providing a wide safety margin in high-temperature operations.

This lubricant is designed for process gas rotary screw and reciprocating compressors in ammonia refrigeration, where leak prevention and evaporator efficiency are critical. Industrial buyers in food processing, cold storage, and chemical plants use it to reduce downtime and improve reliability. Confirm compatibility with elastomer materials and system pressure ratings before bulk orders, as these factors influence long-term performance.

Tribo-Synthetics is an imported-tier supplier of industrial lubricants based in the United Kingdom. The company specialises in formulations for extreme-temperature applications, with a focus on refrigeration and process gas systems. Its product line includes synthetic and semi-synthetic lubricants designed to address specific challenges like elastomer compatibility and oxidative stability.

The supplier’s profile indicates a harbor trust tier, which reflects verified trade activity but does not confirm additional certifications or operational scale. No response rate or average response time data is available, so buyers should request direct contact for technical inquiries. The absence of published lead times or MOQs means these details must be confirmed prior to ordering.