Verified Quality Evidence
Review genuine certification documents, qualified product scope, a redacted EN 10204 3.1 MTC sample and public QC report samples before sending your valve RFQ.
Certified Company Identity
The legal manufacturing company shown on our API 6D, PED and ISO documentation is Zhejiang Yinke Valve Co., Ltd. For due diligence, the website uses the certified API 6D address below instead of a generic marketing address.
Certification Library
Use the original PDF documents to check certificate number, scope, issuing body, qualified range and validity. Fire-test applicability should always be confirmed against the exact offered valve design, size, pressure class and material.
License 6D-2157. Certificate scope includes ball valves, check valves, gate valves and plug valves.
EU quality-system conformity for design and manufacture of ball, gate, globe and check valves within the attached certificate schedule.
Management-system certification for design and manufacture of ball, gate, globe and check valves for market abroad.
TÜV SÜD certificates for qualified ball valve designs. The document includes separate qualified ranges for different test-valve sizes and pressure classes.
TÜV SÜD certificates for qualified ball valve designs, including separate certificates for size and pressure-class qualification ranges.
Third-party fire-test certificate and report for an NPS 2-1/2 Class 600 DBB ball valve, with the qualified range stated in the certificate.
Environmental and occupational health & safety management-system certificates for export valve design, manufacturing and related management activities.
Sample material certificate showing material heat numbers, chemical properties, mechanical properties, pressure testing and inspection results.
Certified PED Scope
The following values are taken from the attached PED certificate schedule. They are certification scope, not a blanket quotation promise; final offered range is confirmed against the product design and RFQ.
| Valve Type | Certified Schedule |
|---|---|
| Ball Valve | CL150-300 up to 42"; CL600 up to 36"; CL900 up to 30"; CL1500 up to 24"; CL2500 up to 12". |
| Gate Valve | CL150-600 up to 36"; CL900-1500 up to 24"; CL2500 up to 6". |
| Globe Valve | CL150-300 up to 16"; CL600 up to 12"; CL900-1500 up to 8". |
| Check Valve | CL150-600 up to 32"; CL900 up to 30"; CL1500 up to 16". |
Material Traceability
The sample demonstrates how material chemistry, mechanical properties, heat numbers and test results can be presented in shipment documentation. The original sample contains no visible client name in the Client field; the website copy additionally removes project/order identifiers and trace numbers for privacy.
The published sample is evidence of document format and traceability practice. Final MTC content is issued against the actual supplied materials, heat numbers, purchase order and agreed documentation requirements.
Public QC Evidence
Review how YINKE records traceability, inspection conditions, measured results and release fields. This section includes public website samples plus a redacted third-party UT report retained as manufacturing and quality-control evidence.
Public website sample showing valve identification, material traceability, calibrated pressure gauges, shell/backseat/closure test records and QC release fields.
Public sample for alloy verification and component traceability, including instrument control, component identification, illustrative readings and QC disposition fields.
Public sample covering VT, MT and PT examination records, personnel qualification fields, equipment and consumable control, material traceability and release authorization.
Public redacted copy of an actual third-party UT report for DBB ball valve body and bonnet components. It retains the examination method, test conditions, technical photographs, acceptance basis and final Accept result while confidential customer and personnel data are mosaicked.
Public sample showing surface preparation, environmental conditions, coating batch traceability, application records, dry film thickness checks and visual inspection fields.
Public sample showing drawing traceability, calibrated measuring tools, primary valve dimensions, flange/end-connection verification and final QC release fields.
Website samples demonstrate document structure and QC traceability. Final production records are issued against the actual purchase order, approved drawings, applicable standards, inspection plan and valve-specific identification.
Before Production
Send required standards, inspection level, NDE/PMI requirements, MTC format, third-party inspection, coating and documentation list with the enquiry so they can be reviewed before production.
Send the project name, valve list and required certification/document list.
