Yufeng Machinery performs complete Factory Acceptance Test (FAT) for each valve test bench before shipment. The FAT inspection verifies every valve test bench meets strict performance and quality specifications before leaving Yufeng Machinery workshop.
Yufeng Machinery engineers design FAT plans according to customer requirements, ISO standards and API industry norms. Engineers check safety interlock systems and calibrate all gauges on valve test benches. Core FAT items include hydrostatic shell test and sealing pressure test at required pressure levels. The inspection confirms no unacceptable leakage on valve test benches. Acceptance rules follow international standards, which requires no visible leakage under 1.5 times rated pressure. Engineers record all test data into formal FAT report. If valve test bench fails any test item, Yufeng Machinery team makes correction immediately and repeats testing until valve test bench satisfies all specifications. Yufeng Machinery arranges FAT schedule in advance to guarantee delivery cycle of valve test benches.
Clients or authorized third-party inspectors including SGS and TÜV can witness FAT of valve test benches. Third-party inspectors check whether valve test bench satisfies contract requirements and safety rules. Inspectors review test procedures and all recorded test data of valve test benches.
Yufeng Machinery provides complete document package after FAT of valve test benches. The package contains FAT test reports, gauge calibration certificates and material certificates. QA department and authorized inspectors sign all documents. These supporting files will be delivered together with valve test benches to customers.
After passing FAT, Yufeng Machinery team drains and cleans valve test bench. Workers pack valve test bench into solid wooden case. Yufeng QA team inspects packaging quality and fixes moving components to avoid damage during transportation.
Yufeng Machinery keeps close communication with buyers during FAT preparation. Yufeng Machinery shares FAT schedule with customers and invites customer engineers to watch the FAT test on valve test benches. Regular progress updates help keep the whole project on schedule.
Site Acceptance Testing (SAT) will be carried out after valve test bench arrives at customer site. Technicians install valve test bench and reconnect power, air and water resources. Technicians run the same functional tests under real working conditions during SAT. SAT verifies valve test bench can work smoothly with customer’s on-site system. Technicians make final adjustments until valve test bench runs perfectly. Customers sign acceptance document after successful SAT.
The difference between FAT and SAT is clear. FAT takes place inside Yufeng Machinery workshop before shipment. FAT checks valve test bench structure, function and compliance with contract specs. SAT runs after installation at customer site. SAT confirms stable operation and system compatibility under real working environment. All testing activities follow authoritative pressure test guidelines, API and ISO standards for valve testing equipment, together with Yufeng Machinery internal quality management documents.
