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Zhejiang Yinke Valve Co., Ltd.

Certified manufacturing location: Yongjia County, Wenzhou City, Zhejiang Province, China

Quality & Inspection

Ball Valve Quality Inspection & Traceability

Ball valve quality inspection covers material traceability, manufacturing controls, pressure testing, NDE/NDT, PMI, dimensional inspection, coating and final documentation according to project requirements.

Inspection Evidence

Traceable quality records.

Material and inspection records allow engineering and procurement teams to review how the final valve is linked to material certificates, manufacturing controls and test results.

Project requirements control the final inspection scope

The approved datasheet, ITP/QAP and project specifications should define witness points, hold points, NDE extent, pressure testing, PMI, dimensional checks, coating requirements and final document submission.

Confidentiality of sample records

Sample records shared for technical review are provided with customer or project details removed when confidentiality requires.

low temperature cryogenic valve test setup in YINKE factory test area
Low-temperature / cryogenic valve test setup photographed in the factory test area.
Real Factory Evidence

Workshop testing & inspection.

The gallery shows a low-temperature test setup and workshop inspection activity from our manufacturing operations.

low temperature cryogenic ball valve test setup in factory test area
Low-temperature / cryogenic valve test setup photographed in the factory test area.
workshop inspection activity on large industrial ball valve assembly
Workshop inspection activity on a large industrial ball valve assembly.
close up of auxiliary valve drain and vent details on large valve assembly
Close-up of auxiliary valve and drain / vent details on a large valve assembly.
large industrial valve wrapped for shipment
Large valve protected and wrapped for shipment.
Public Inspection Samples

Inspection records for project review.

Depending on the approved ITP/QAP and project requirements, documentation can include the records listed below.

Pressure Test

Hydrostatic Test Report

Shell and seat test evidence for a representative valve.

Request a sample report.
NDE / NDT

UT / RT / PT / MT Report

Representative NDE/NDT report according to the applicable project requirement.

Request a sample report.
Material Verification

PMI Report

Positive material identification sample for pressure-containing or trim components.

Request a sample report.
Dimensional

Dimensional Inspection

Representative dimensional record against approved drawing requirements.

Request a sample report.
Coating

Coating / DFT Report

Surface preparation, coating system and dry film thickness inspection sample.

Request a sample report.
Material Certificate

MTC / EN 10204 3.1 Sample

Representative material certificate with confidential commercial data removed.

Request a sample report.
Inspection Process

Define inspection requirements in the RFQ.

Agree inspection levels, witness points and document requirements before production so they can be included in the manufacturing and inspection plan.

Material certificate review
Heat-number traceability
NDE / NDT requirements
PMI scope
Shell / seat pressure test
Dimensional inspection
Coating / DFT inspection
Third-party inspection witness

Send us your ball valve datasheet.

We review valve design, pressure class, materials, seat system, end connection, operation, testing and project documentation before quotation.

Request Technical Review →