Purge Valve for Audi A4: Sintered Metal
This purge valve for the Audi A4 is specified around sintered metal, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is documentation that arrived after the container shipped, or packing that arrived crushed at the port. Both are specification problems, and both are preventable.
Specification
| Product | Purge Valve |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Sintered Metal |
| Typical use | Airport Ground Fleets |
| MOQ | 3,000 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 15-30 days after approval |
| Compliance | SAE J431 |
| Packing | 50 pieces per inner box, 200 per carton |
Material options
- Magnesium Alloy — preferred when weight matters more than rigidity
- Carbon Fibre Composite — selected when the part is exposed to weather and road salt
- Aluminium Alloy — preferred when weight matters more than rigidity
- Forged Aluminium — selected when the part is exposed to weather and road salt
- Anodised Aluminium — chosen where wear resistance comes first
Processes available
- rubber vulcanisation
- precision stamping
- ultrasonic cleaning
- sintering
- heat treatment
- surface grinding
Fitment notes
Check whether the mounting points on your market version match the catalogue drawing — regional variants are the usual cause of a wrong first order.
Where it is used
The specification above is the one most often ordered for airport ground fleets. Related applications include ride-hailing fleets, delivery fleets, adventure travel, long-distance touring, airport ground fleets.
Quality and packing
- In-line inspection with AQL 1.5 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
What is the minimum order quantity?
The standard MOQ is 3000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
What testing is included?
Standard lots ship with dimensional and hardness reports. SAE J431 documentation is issued with the shipment when your market requires it.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
How long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 5 days once you have seen the first piece.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.
