CP-4214 series is designed for R22 refrigerant screw machine developed ester (POE) synthetic refrigeration oils. CP-4214 series provides a different viscosity grades of products. Higher operating viscosity can produce a good seal between the rotor and can provide good lubrication in bearings and seals them; at low temperatures it provides good solubility, and ensure that the oil bath evaporator good oil return and better heat exchange efficiency; its low volatility provides good separation of oil and gas. CP-4214-150 series synthetic refrigeration oil Typical Specifications: Model CP-4214-150 refrigeration oil viscosity 40 ℃, cSt, ASTM D445 168 Viscosity 100 ℃, cSt, ASTM D445 20.2 Viscosity Index ASTM D2270 150 Density lb / gal, 60 ℉ 8.41