| Application and Process Fit |
The equipment should be selected according to liquid viscosity, temperature, foaming tendency, solids content, required throughput, and permitted residence time. |
Process questionnaire, product data sheet, pilot-test report, and a written process design basis. |
15% |
0–5 |
| Vacuum Operating Range |
The proposed operating pressure must match the product's boiling point and thermal limits. Lower absolute pressure generally supports deaeration at lower temperatures, but the practical range depends on the process. |
Vacuum-pump curve, pressure-control range, calibrated vacuum gauge specification, and factory acceptance test records. |
10% |
0–5 |
| Deaeration Performance |
Performance should be stated as a measurable dissolved-oxygen reduction or gas-removal result under defined product and operating conditions, rather than as a general marketing claim. |
Before-and-after dissolved-oxygen test results, test method, sampling procedure, product temperature, pressure, and throughput. |
15% |
0–5 |
| Capacity and Hydraulic Stability |
Rated capacity should be provided in a defined unit such as L/h or m³/h, with viscosity, density, temperature, inlet pressure, and outlet pressure clearly specified. |
Pump curve, equipment datasheet, piping-and-instrumentation diagram, and a capacity test using a comparable fluid. |
10% |
0–5 |
| Material Compatibility |
Product-contact materials should be suitable for the liquid, cleaning chemicals, temperature, and regulatory requirements. Stainless steel grades and elastomer materials must be identified. |
Material list, certificates for product-contact parts, gasket specifications, surface-finish information, and corrosion-compatibility statement. |
10% |
0–5 |
| Hygienic and Cleanable Design |
For food, beverage, pharmaceutical, or cosmetic use, the design should minimize dead legs, provide drainability, and define cleaning and sanitation procedures. |
General arrangement drawing, hygienic design review, cleaning-in-place procedure, drainability confirmation, and surface-finish records where applicable. |
10% |
0–5 |
| Vacuum Tightness and Leakage Control |
The manufacturer should define the leak-test method, test pressure, allowable leak rate, and inspection points for the vessel, piping, valves, seals, and instruments. |
Pressure or vacuum holding-test report, leak-test procedure, weld inspection records, and documented corrective-action process. |
10% |
0–5 |
| Instrumentation and Automation |
The control system should monitor absolute pressure, temperature, flow, liquid level, pump status, alarms, and emergency conditions relevant to the process. |
I/O list, control philosophy, electrical drawings, alarm matrix, sensor accuracy information, and software backup policy. |
8% |
0–5 |
| Safety and Compliance Documentation |
The design should address pressure-related hazards, moving parts, electrical safety, hot surfaces, vacuum collapse risks, and applicable destination-market requirements. |
Risk assessment, operating manual, safety circuit description, electrical documentation, pressure-vessel documents where applicable, and conformity declarations. |
7% |
0–5 |
| Factory Testing and Acceptance |
A documented factory acceptance test should verify pressure stability, flow, temperature control, pump operation, alarms, interlocks, and key workmanship requirements. |
FAT protocol, signed test checklist, calibration certificates, video records when required, and punch-list closeout documentation. |
5% |
0–5 |
| After-Sales Service and Spare Parts |
A reliable supplier should provide commissioning support, troubleshooting response, recommended spare-parts lists, maintenance schedules, and clear warranty terms. |
Service-level agreement, warranty policy, spare-parts catalog, response-time commitment, training plan, and references for comparable installations. |
5% |
0–5 |
| Total Evaluation Method |
Calculate the weighted score using: Weighted Score = Σ (Dimension Score ÷ 5 × Dimension Weight). A higher score indicates stronger documented suitability, not an automatic purchasing recommendation. |
Completed supplier comparison sheets, verified documents, test results, and commercial quotations. |
100% |
0–100% |
LTCC
MLCC
