Cooling & Heat Exchange RAL Series Air/Oil Heat Exchangers ii TECHNICAL SPECIFICATION » Material: aluminium. » Working pressure: 26 bar. » Test pressure: 39 bar. » Max working temperature: 120°C. INSTALLATION The heat exchanger should be installed in such a way that there should be no obstacles to the air flow, respecting the minimum distance from the wall (1/2 fan diameter) so as to ensure a natural flow of cooling air. The cooler can be fitted in vertical and horizontal position. RAL series coolers are normally used for cooling hydraulic circuits and installed on the return lines: they must be protected from impact and mechanical vibrations by support and must be connected to the circuit with flexible pipes. To prevent any damage caused by changes in flow, hammering and pulsations we recommend installing a by-pass valve. COMPATIBLE FLUIDS » Mineral oils » Water-oil emulsion » Water-Glycol For other fluids please contact jbj Techniques Limited technical office, telephone: 01737 767493 or email: info@jbj.co.uk MAINTENANCE Cleaning oil side After having dismantled the exchanger, carry out the cleaning procedure by circulating de-greasing substance inside the radiator compatible with aluminium. Wash with hydraulic oil before reconnecting the cooler.
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