Chemical environment
Provide each product and cleaning fluid, concentration range, pH where relevant, impurities, dissolved solids, aeration and any changing addition sequence.
Wetted materials / Corrosion review
Specify product-contact materials from the full exposure—not a grade name.
A stainless, ceramic, coating or elastomer label is not a compatibility guarantee. The real exposure includes product chemistry, concentration, contaminants, temperature, aeration, flow, abrasion, cleaning agents, time and upset conditions.
01 / EnvironmentChemistry, concentration, contaminants and temperature
02 / ServiceTime, aeration, flow, abrasion, cleaning and upset cases
03 / DecisionFull-train review, representative test and supplier approval
Review the exposure
Material selection needs chemistry, design and service context.
Published compatibility tables can help screen questions. They cannot reproduce every weld, surface, crevice, velocity, cleaning cycle or changing formulation in the actual process.
Thermal and mechanical service
Record normal and upset temperatures, exposure time, flow or stagnation, pressure state, abrasion, media contact and cleaning frequency.
Complete contact train
Review base metals, welds, finish, linings, coatings, media, separator, seals, hoses, piping, valves and pump as connected interfaces.
Compatibility review route
Move from a formulation record to a supplier-approved wetted train.
Keep every material decision traceable to the exposure it was reviewed against, including cleaning and abnormal conditions.
01→
Define all fluids
List product stages, intermediates, rinses and cleaning agents with their relevant composition ranges.
02→
Map service conditions
Add temperatures, exposure sequence, stagnation or flow, abrasion, aeration, cleaning cycles and upset cases.
03→
Screen the full wetted train
Ask material and equipment suppliers to review each metal, lining, coating, media, seal, hose and interface.
04
Test and document
Use representative exposure or sample-process testing where needed, then record approvals, limits and unresolved conditions.
Material-review checklist
Give material reviewers the full chemistry, exposure and wear context.
This brief does not recommend a stainless grade, ceramic or elastomer. Final selection requires material-supplier and equipment-supplier confirmation plus representative testing where the service is uncertain.
Open the process brief- 01Product chemistry
All ingredients and intermediates, concentration range, pH where relevant, impurities, aeration and formulation variability.
- 02Cleaning chemistry
Cleaning and rinse fluids, concentration, sequence, temperature, contact time, frequency and disposal route.
- 03Temperature & time
Normal, start-up, shutdown and upset temperatures, continuous or intermittent exposure and hold periods.
- 04Flow & wear
Stagnant zones, velocity context, pumping, solids, grinding media, abrasion, vibration and previous failure evidence.
- 05Contact components
Vessel, chamber, agitator, separator, welds, finish, lining, coating, seals, hoses, piping, valves and pump.
- 06Verification route
Supplier compatibility review, coupon or immersion plan, sample-process trial, inspection method and approval owner.
Buyer decision FAQ
A material name is not a service-condition guarantee.
Is stainless steel automatically compatible with the product?
No. Compatibility depends on the specific grade and construction as well as chemistry, concentration, contaminants, temperature, aeration, flow, abrasion, weld and finish condition, cleaning and exposure time.
Can a compatibility table approve the final material?
A table can support initial screening, but it cannot reproduce every service condition. Use it to form questions, then obtain material and equipment supplier review for the actual exposure.
Which product-contact components need review?
Review the entire wetted train, including vessel or chamber, agitator, media, separator, welds, finish, linings, coatings, seals, hoses, piping, valves, pump and cleaning circuit.
How is a product-contact material finally confirmed?
Use supplier review against the complete service record and, where uncertainty remains, representative coupon, immersion or sample-process testing before approval.