5.6 Heating/Cooling devices
The DuraCirc pumps have the option of being fitted with a heating/cooling
jacket fitted on the rear of the rotorcase.
These are to be used for heating the pump head to maintain the pumped
media viscosity and reduce risk of any crystallisation/solidification of the
pumped product occurring. They may also be used for cooling purposes.
3206-0053
The maximum pressure and temperature of heating/cooling fluid is 3.5 bar (50
psi) and 150°C (302°F) respectively. Heating/cooling jackets should be in
operation approximately 15 minutes prior to pump start up and remain in
operation 15 minutes after pump shut down.
Disassembly
NOTE:
It is recommended to mark the positions of the rotors and rotorcase
(e.g. Top/Bottom or Left/Right) prior to removal to the parts are refitted in the
same position.
Ensure pump has been allowed to reach ambient temperature before
continuing and that any heating / cooling media has been drained.
1.
Remove rotorcase cover (1) and rotors (3).
2.
Remove the jacket connection pipes.
3.
Remove the rotorcase (2) and place face down on a suitable surface.
4.
Remove the jacket screws (19) and the jackets (17) using a soft mallet to
gently tap free if required.
5.
Remove the o-ring (18) and replace.
6.
Clean the jacket and the mating face of the rotor case of any debris or
residue and ensure the port connections are not blocked.
200002348-1-EN-GB
57
Maintenance 5
EN
Summary of Contents for DuraCirc Range
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