A thorough Factory Acceptance Test (FAT) at Yufeng’s China workshop ensures each valve test bench meets rigorous performance and quality standards before shipment .FAT Workflow at the FactoryYufeng engineers meticulously plan the FAT according to customer specs and ISO/API standards. Safety interlocks are checked and all gauges are calibrated. Key tests include hydrostatic shell and sealing tests at prescribed pressures, verifying there are no leaks beyond acceptable limits. Acceptance criteria follow international norms (e.g. no visible leakage at 1.5× rated pressure). Each test result is logged in a detailed FAT report. If any test fails, immediate corrective action is taken and the test is repeated until specifications are met. These FAT steps are scheduled well in advance so that testing is completed before shipment without delaying delivery.
· Witness & Inspection: Clients or authorized inspectors (e.g. SGS/TÜV) may witness the FAT. Third-party inspectors verify the bench meets contractual and safety requirements, reviewing procedures and test data.
· Documentation: A complete FAT package includes test reports, calibration certificates and material certificates, all signed off by QA (and inspector). These documents accompany the bench for handover to the customer.
· Packaging: After FAT the bench is drained, cleaned, and safely crated. Yufeng’s QA inspects the packaging and secures moving parts to prevent damage during transport.
· Client Coordination: Yufeng shares the FAT schedule with buyers and invites customer engineers to observe tests. Regular updates keep the project on track.Site Acceptance Testing (SAT)Once delivered, the bench is installed on-site and powered up. During SAT, technicians reconnect utilities (power, air, water) and run the same functional tests under real operating conditions. This verifies the bench integrates with the customer’s system and performs as expected. Any final adjustments are made until operation is smooth. A successful SAT concludes with customer sign-off.AspectFAT (Factory Acceptance Test)SAT (Site Acceptance Test)Location & TimingYufeng’s workshop before shipmentCustomer site after installationPurpose & FocusVerify bench build, function and contractual specsConfirm operation and integration under real conditionsSources: Authoritative testing and inspection guidelines, including SGS/TÜV procedures and industry standards (API/ISO) for pressure testing, as well as Yufeng’s quality documentation.
