UCON™ R-4

ISO 460 polyalkylene glycol oil designed for extended service life and performance in reciprocating hydrogen compressors.
Product Overview
UCON™ R-4 is a PAG-based synthetic lubricant designed for superior cylinder lubrication of reciprocating hydrogen compressors commonly used in refinery processes. UCON™ R-4 provides excellent viscosity index and ultra-clean performance. it has a viscosity of 400 cSt @ 38 °C
Product Specifications
Viscosity (at 40° C): 74.1 cSt
Viscosity (at 100° C): 16.0 cSt
Viscosity Index: 231
Pour Point: -41°C (-42°F)
Flash Point: 249°C (480°F)
Specific Gravity: 1.041
Pounds per gallon: 8.88
Primary Chemistry: Polyalkylene glycol
Features & Benefits
Low hydrogen and hydrocarbon solubility
Low vapor pressure
Exceptional lubricity
Lowered maintenance costs
Good thermal conductivity
No sludge, varnish or lacquer formed
Water tolerance
Easier low temperature start up
Problems Solved
Damage or Scoring to Compressor Components
High Costs Incurred from Required Compressor Maintenance or Replacement
Applications
UCON™ R-4 is engineered for a range of compressor applications including superior cylinder lubrication of reciprocating hydrogen compressors commonly used in refinery processes.