Free-flow models have wider plate gaps ranging from 5.4 mm to 11.5 mm and can handle fluids with particulate pulp or fibrous materials up to 2mm in diameter and 5mm long. Free-flow models feature minimum metal-to-metal contact points between elastomer adjacent plates to reduce points for particles to catch. Free-flow models available in 2″ to 12″ connection sizes.

Plate and Frame heat exchangers use a combination of chevron-style heat transfer plates sequenced between a frame plate and pressure plate. The heat transfer plates have holes at the four corners forming a header that distribute the respective flows to the opposite sides of each plate when the plates align. The fluids are confined to the heat transfer surface of the plate or the port as appropriate with elastomer gaskets.