Chemical Processing

Run the stream's phase behavior across the exchanger temperatures rather than trusting the averaged lab analysis. Where the stream partly condenses or boils inside the pack, acids and salts collect in a thin layer at the wall at concentrations far above the feed. A corrosion coupon in the existing line, or a deposit sample from a unit already in service, tells you more than any bulk number.

Every one used in the clean-in-place or manual cleaning cycle, at the temperature it is applied. Operators often check the process fluid carefully and forget that a hot nitric or caustic wash can swell or harden a gasket faster than the product does. List the cleaning agents, strengths and wash temperatures with the process data so the compound is picked for both.

When the fluid can be pumped through narrow channels without solids settling or viscosity climbing out of reach. A plate pack gives far more surface per unit volume and a closer approach. A Temp-Plate assembly wins where the material must stay in the reactor or tank, where it carries heavy solids, or where any elastomer in contact with the chemistry is unacceptable.

Material certificates for the plates and wetted parts are supplied, which most chemical plants need for their management of change file. If your site requires specific traceability, positive material identification or a particular certificate format, say so at the inquiry stage. Adding those requests after the order is placed tends to slow release of the unit.