
Aunov Tech builds this Stainless Steel Union Strainer Fitting in stainless steel, from coil or bar through to the finished surfaces. Once installed, the CNC machined part provides the finished surfaces, threads and seats the mating parts locate on. The same floor forms, machines and inspects the part, so first-article dimensions hold through volume batches under one roof.
Product overview
For this stainless steel fitting, the drawing centres on, draw depth, wall band and the surfaces that forming cannot hold, re-checked whenever the drawing is revised.
Tooling and finishing for this stainless steel fitting run under one roof, so revisions do not wait on outside suppliers, with process data archived for repeat orders.
How it is manufactured
Production follows a defined route: Blanks are drawn in stages, with interstage annealing where the wall thins; piercing and trimming are done in the same die line.
Every blue ported tube order keeps its trace back to the approved first article, and a reorder is a repeat rather than a new start. Mill certificates are filed per heat, so blue ported tube traceability survives a change of material batch.
Materials and finishing
Everything is drawn from a fixed stock list: SPCC / DC01 carbon steel, 304 / 316 stainless, aluminium, brass, copper and bronze with 304 / 316 stainless steel specified on the drawing for this stainless steel fitting.
The finish is chosen for the duty it will see: plating, anodising, powder coating, electrophoresis and passivation. It is fixed on the drawing for this stainless steel fitting, so repeat orders never reopen the question.
Each blue ported tube shipment is verified against the master sample before it leaves the shop. The signed blue ported tube sample remains the reference and is kept with the job file.
Quality control
Quality management is certified to ISO 9001: incoming material is verified against mill certificates, first articles are measured on a CMM, and run inspections follow an agreed sampling plan. The blue ported tube first article is CMM measured – threads gauged to class, diameters on the record. Functional testing – torque, leak or pressure – can be written into the plan, and the report is packed with the shipment.
Applications
You will find this stainless steel fitting inside industrial and appliance assemblies across automotive, appliance and industrial programmes.
This stainless steel fitting is supplied to several positions in the same machine, so the finish is chosen to cover the harshest of them, and the same first article applies throughout.
Options and variations
Where designs usually differ
Typical customer decisions: material and coating for the duty, thread classes, seat finishes, milled features, cross-holes and plating or anodizing to the print, and whether orders run as prototypes, pilot lots or scheduled batches.
Quotes show which options the current die already supports, so nothing hidden appears later in the project.
Specifications
| Item | Stainless Steel Union Strainer Fitting |
|---|---|
| Brand | AUNOV |
| Designing | Quotation follows the print, not a catalogue – samples are reverse-measured into a controlled drawing; changes are priced before they are made. |
| Tooling | Our toolroom covers die design, wire-cut EDM and maintenance, so die cost stays transparent, and the charge is refundable against agreed volumes. |
| Samples | Sample and first article are the same discipline here: measured, reported, then approved. |
| Materials | Carbon steel, 304 / 316 stainless, aluminium and brass are all held in stock; the final grade is fixed with the drawing review. |
| Surface finish | Natural, plated or coated – the print decides, and the agreed finish is logged; the finish is inspected with the dimensional report on the first article. |
| Processing | Turn-mill machining, critical diameters finished in one setup; batch records are filed so a repeat order starts from approved data. |
| Equipment | Bar-fed CNC turning centres plus 3- and 4-axis machining centres, with CNC turning centres for secondary operations and CMM inspection. |
| Tolerance | +/-0.01 mm on turned and milled features; capability is checked on the first article before the run continues. |
| Delivery terms | FOB, with DDP offered for EU and US addresses, payment by T/T, L/C at sight or D/P; repeat orders reuse the approved first article. |
Packing and shipment
Finish comes first when packing this stainless steel fitting: the coating decides whether parts are interleaved, bagged or tray-packed, then cartons are sealed and palletised, with marks and documents as you specify.




