Pharmaceutical Industry Pneumatic-Control Heating / Cooling Skid

This Pneumatic-Control Heating / Cooling Skid was designed for a customer who had restricted building management connections available to them.

The skid is used for both heating (up to 80 deg. C) and cooling (ambient temperature) a reactor jacket. The switch from cooling to heating is done through a pneumatic control panel, and a single 4-20 mA temperature set point signal.

This control panel controls both the cooling and heating control valves through split-range pneumatic positioners.

Due to previous issues with thermal cycling on stick-built temperature control for the existing reactor, ESI chose Shell & Plate exchangers to minimise leak paths.

To avoid the heating heat exchanger stalling after prolonged periods of the skid being in cooling mode, ESI fitted a compressed air-driven condensate pump to ensure that the condensate side of the exchanger was fully drained at all times independent of the steam being live onto the skid.

Reduced foot print and ease of access for maintenance were also key requirements in the design process.

For further information on skid design & build, and skid fabrication, send us a product enquiry or contact Alan Venner at ESI on Ireland: +353 21 4510900; or UK: +44 1633 877505

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