Pressure Relief Valve Adjustment - Neslab System I Liquid to Liquid Instruction And Operation Manual

PD-2 Pump: a wire mesh screen is located under the large hex nut on the
pump suction line.
Strainer
Before cleaning the strainer, disconnect the line cord from the power source
and drain the reservoir.
Remove the appropriate nut. Remove the strainer from the unit and rinse it
with water. When the screen is clean, replace it in the strainer cavity, tighten
the hex nut and replace the panel. Refer to Section III, Filling Requirements
for instructions on replacing the cooling fluid.
Pressure Relief
Valve Adjustment
The adjustable pressure relief valve establishes the maximum operating
pressure of the unit. If the pressure of the fluid leaving the pump exceeds the
valve setting, the relief valve will bypass the fluid within the unit to relieve the
pressure. The relief valve does not determine the actual operating pressure;
the operating pressure of the system is determined by the back pressure of
the connected equipment and the setting of the flow control.
If adjustment is necessary, contact our Service Department.
For applications requiring maximum pressure less than 55 psi, a retrofittable
External Pressure Reducer (EPR) is available. An EPR allows an operating
pressure of 10 to 50 psi. Contact our Sales Department for more information
(see Preface, After-sale Support). Before calling please obtain the following
information:
BOM number
Serial number
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