When tightening the plate type heat exchangers shown in the illustration, care must be taken to __________. MO-0110

Correct Answer: Option D — use a specific opposing pattern while measuring the distance to which the plates have been compressed

Plate heat exchangers rely on precise compression to ensure gasket integrity. Using an opposing, cross-pattern tightening sequence prevents plate distortion or uneven loading. Measuring the compressed plate pack distance ensures the manufacturer's specified gasket compression is achieved without damaging the thin, heat-transfer plates or the frame.