Quality Checked at Every Stage, Not Just at the End
At BOVTECK, quality control isn't a single checkpoint before shipment — it's built into every stage of production, from incoming raw material to the final container loading.
We combine ISO 9001-certified quality management processes with 100% functional testing on every valve, giving our international partners confidence that what they ordered is exactly what arrives.
100%
Valves Function-Tested
5
QC Checkpoints per Order
<0.5%
Customer-Reported Defect Rate
ISO 9001
Certified QMS
From Raw Material to Shipment
A detailed look at every quality checkpoint your order passes through.
Incoming Material Inspection (IQC)
All plastic resin, metal sheet, spring wire, and gasket materials are inspected and tested against specification before being released to production.
In-Process Inspection (IPQC)
During injection molding, stamping, and spring coiling, operators and QC staff perform periodic dimensional and visual checks to catch deviations early.
Assembly Line Function Testing
As valves move through automatic assembly, in-line testing stations perform 100% leak testing and spray function verification — not just a sample.
Final Quality Inspection (FQC)
Before packing, finished goods undergo a final round of dimensional, visual, and functional checks, including dosage/spray pattern verification for metering products.
Pre-Shipment Inspection (PSI)
A final random sampling inspection, following AQL standards, is performed on packed cartons before container loading — covering quantity, packaging, and product condition.
How We Test Our Products
Specific test methods used to validate function, safety, and durability.
Leak Testing
Water bath immersion and pressure decay methods detect any micro-leaks in the valve seal.
Spray Pattern Test
Verifies mist quality, spray angle, and consistency against the approved reference sample.
Dosage Verification
Measures actual output per actuation for metering valves and pumps, checked against target spec.
Seal Depth Measurement
Confirms crimping/seal depth compatibility with your filling line equipment before mass production.
Dimensional Inspection
Critical dimensions checked with calipers, gauges, and CMM equipment against drawing tolerance.
Spring Force Test
Measures spring compression force to ensure consistent actuation feel and valve return performance.
Drop & Transit Test
Packed cartons undergo drop testing to simulate handling and shipping conditions before export.
Material Composition Test
Third-party lab testing (e.g. SGS) available on request to verify material safety and regulatory compliance.
AQL Inspection Standards
Our pre-shipment inspection follows internationally recognized AQL (Acceptable Quality Level) sampling standards.
| Defect Classification | Definition | AQL Level Applied |
|---|---|---|
| Critical Defect | Could cause safety hazard or complete functional failure (e.g. valve leakage) | 0 (Zero tolerance) |
| Major Defect | Affects product function or usability (e.g. incorrect dosage, poor spray pattern) | AQL 1.5 |
| Minor Defect | Cosmetic or minor issue not affecting function (e.g. small surface mark) | AQL 2.5 |
Inspection sample size is determined based on total order quantity, following standard AQL sampling tables (e.g. ANSI/ASQC Z1.4 or ISO 2859-1).
Quality Documentation We Provide
Supporting documents available to accompany your order for your own quality records.
Certificate of Conformance (CoC)
Confirms the shipped batch meets agreed specifications.
Inspection Report
Detailed results from final inspection, including sample size and defect findings.
Batch Traceability Records
Production batch numbers linked to raw material lots for full traceability.
Material Test Reports
Third-party lab reports (e.g. SGS) available on request for material safety verification.
Dimensional Inspection Data
Measurement records for critical dimensions against approved drawings.
Pre-Shipment Inspection Summary
Final AQL-based inspection summary prior to container loading.
Defect Handling & Continuous Improvement
If an issue is ever found, here's how we handle it.
Report the Issue
Client shares photos, videos & batch number
Root Cause Investigation
QC team traces issue to its production stage
Resolution Proposed
Replacement, credit, or corrective action plan
Process Update
QC checklist updated to prevent recurrence
Want to Discuss Quality Requirements for Your Order?
Whether you need a specific AQL level, third-party inspection, or special test report — let's talk through your requirements.