Evaporator materials and CIP specification for food liquids
Specify product-contact materials, cleaning chemistry, inspection access, seals and CIP verification for a falling film evaporation project.
Material choice starts with the actual duty
State acidity, salts or chloride exposure, product temperature and the planned cleaning chemicals. A food-liquid name does not establish an alloy or seal specification. Ask for the proposed product-contact materials and the basis for selecting them; grade labels alone do not prove compatibility.
Identify the whole product-contact boundary
Include the distributor, heating tubes, separator, product piping, valves, instruments, pump wetted parts and seals. Confirm which materials and surfaces are included in the supply. Where a project specifies certificates, surface finish or hygienic connection requirements, state those requirements before comparing quotations.
Design cleaning around the equipment
The cleaning circuit needs defined flow, temperature, chemical conditions, time and return paths. Check the distributor head, final pass, separator and dead-leg risks. Clarify whether a CIP supply unit is included, shared with existing equipment or supplied by others. Equipment drawings should show the relevant interfaces and drainage.
Agree how cleaning will be verified
Ask how the cleaning endpoint is checked and how deposits, inspection access and maintenance are handled. Cleaning interval and product changes affect useful operating time. A general “CIP-ready” description is less useful than an agreed cleaning procedure and verification method for the actual product.
Related selection resources
How to specify falling film evaporator capacity
Separate feed throughput from evaporation capacity. Specify kg/h water removal, inlet and final solids, operating hours and the measurement basis.
Read the engineering basis ↗APPLICATION & SELECTIONViscosity and minimum wetting in falling film evaporation
Review concentrate viscosity, particles, distributor geometry and minimum liquid flow before choosing a falling film evaporator for a food liquid.
Read the engineering basis ↗APPLICATION & SELECTIONSteam, electricity and cooling-water checklist for evaporators
Prepare the utility data needed for steam, TVR or MVR falling film evaporation: pressures, electrical capacity, cooling conditions and operating hours.
Read the engineering basis ↗Give the equipment a clear brief.
Tell us the liquid, feed rate and concentration target. Add the utility conditions you know; we will identify what needs further review.