Overview
2LQFW, 2LQFL, 2LQFIW and 2LQGW coolers, similar in function to GLLQ units, cool working oil in hydraulic and lubrication equipment used in metallurgy, mining, light industry, power and chemical processing. The stated maximum design-temperature range is 100-120 °C and working pressure is 1.6 MPa. The heat-transfer coefficient is 348-407 W/(m²·K). Finned tubes give 523-580 W/(m²·K), but the permitted fluid-viscosity range is then 10-50 cSt. The listed 2LQF designs use a viscosity range of 10-326 cSt.
Selection and operation
Pressure, temperature and heat-transfer area differ between subseries. Select by the specific model and leave space for tube-bundle withdrawal and maintenance.
Technical documentation
Specifications, installation dimensions and diagrams are provided in the following sheets and the attached PDF. Use the data for the selected model and configuration. Check the connections, operating medium and installation space before ordering.
