Expansion Valve for Audi A4: EPDM Rubber
This expansion valve for the Audi A4 is specified around epdm rubber, 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 a fitment that looked right on paper and failed on the bench, or documentation that arrived after the container shipped. Both are specification problems, and both are preventable.
Specification
| Product | Expansion Valve |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | EPDM Rubber |
| Typical use | Passenger Transport |
| MOQ | 3,000 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 20-30 days after approval |
| Compliance | ISO/TS 16949 |
| Packing | 10 pieces per inner box, 500 per carton |
Material options
- Brass — chosen where wear resistance comes first
- Powder Coated Steel — selected when the part is exposed to weather and road salt
- Anodised Aluminium — specified where the part sits close to a heat source
- Tempered Glass — used when the finish has to hold a coating
- Semi-Metallic Compound — used when the finish has to hold a coating
Processes available
- assembly line testing
- electroplating
- robot welding
- powder coating
- heat treatment
- ultrasonic cleaning
Fitment notes
Confirm the fitment against the VIN or the frame number before ordering; two model years often share a name and not a part.
Where it is used
The specification above is the one most often ordered for passenger transport. Related applications include coastal delivery, passenger transport, weekend riding, airport ground fleets, security patrols.
Quality and packing
- In-line inspection with AQL 2.5 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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.
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.
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. ISO/TS 16949 documentation is issued with the shipment when your market requires it.
Send the specification you are working to and we will confirm what we can match, what we would change and why.
