A valve order is not complete when assembly ends. Inspection records, identification, preservation and packaging all affect whether the customer receives a product that can be checked and installed as intended. Chinese manufacturers can strengthen export quality by planning these steps with the buyer before production begins.
Agree on inspection before manufacturing
Define the inspection and test plan in the order documentation. It should identify the required checks, acceptance criteria, records and any customer or third-party witness points. Specify the governing standards and editions where applicable, and resolve conflicting requirements before testing.
A general request for a “pressure test” is not enough to describe the full acceptance process. The approved procedure should distinguish the required pressure-boundary and closure checks, test conditions, duration and acceptance criteria. The details depend on the valve design, size, rating, seat construction and governing specification.
Record what was tested
A useful test report connects the result to an identifiable valve or permitted test batch. It should record the applicable procedure, relevant test conditions, equipment identification, date and responsible personnel. Measuring equipment should be suitable for the required measurement and within its applicable calibration controls.
Testing belongs in a controlled facility under an approved procedure. A passed factory test demonstrates compliance with the specified test conditions; it does not establish suitability for every possible process condition or replace correct installation.
Check operation and configuration
Verify that the completed assembly matches the approved order. Where applicable, check operating direction, travel, position indication, actuator configuration, accessories and identification labels. Functional checks should follow the agreed scope and account for the difference between workshop conditions and the actual service duty.
If a nonconformity is found, document the disposition, complete the approved correction and repeat the affected checks as required. A delivery deadline should not turn an unresolved deviation into an undocumented acceptance.
Protect the valve after acceptance
Use preservation and packing appropriate to the material, design, transport route and expected storage period. Protect connection faces and openings, secure movable parts as specified and prevent loads from being transferred through vulnerable accessories. Follow the manufacturer’s instructions for storage position and preservation.
Packaging should allow the receiving team to identify each item without unnecessary unpacking. Include the purchase-order reference, item identification, quantity and handling information. Confirm any destination-specific packaging requirements with the buyer before dispatch.
Close the shipment with a document review
- Valve configuration and identifiers match the approved order.
- Required inspection and test records are complete and accepted.
- Material records and approved deviations are included where required.
- Installation, operation and maintenance information matches the supplied assembly.
- Packing list, package markings and product identification agree.
- Preservation, accessories and loose items have been checked.
Export quality is the result of a complete handover: the right valve, protected for the journey, accompanied by usable evidence. Clear inspection planning helps buyers and Chinese manufacturers resolve expectations before they become shipment disputes.
Share your inspection, documentation and delivery requirements with DQSV when requesting a quotation. See our engineering support checklist for the application details to include.