This CNC Machined Stainless Steel Valve and Flange Fittings is an Aunov Tech production part in stainless steel, quoted and built to customer print. In duty, the CNC machined part carries the controlled features that forming alone cannot hold. Die work, machining and CMM inspection are all in-house, so repeat orders stay aligned with the approved sample without re-quoting the job elsewhere.
Product overview
What defines this stainless steel fitting is, the forming route, the tolerance band and the sealing faces, audited against the approved sample at each production release.
The press shop and machine shop that make this stainless steel fitting share one floor, so a change of wall or hole does not restart the programme, and the die record stays with your part number.
How it is manufactured
The process for this stainless steel fitting runs in a fixed sequence: Bar stock is sawn and then machined on CNC turning and milling centres; in-process gauging runs alongside the machines on longer batches.
Each threaded pipe union shipment is verified against the master sample before it leaves the shop. Mill certificates are filed per heat, so threaded pipe union traceability survives a change of material batch.
Materials and finishing
Materials kept on the floor cover 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.
Coating selection follows the duty – indoor, outdoor or under-hood: polishing, zinc / nickel / chrome plating, anodising or powder coating. It is fixed on the drawing for this stainless steel fitting, so repeat orders never reopen the question.
Every threaded pipe union 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 threaded pipe union traceability survives a change of material batch.
Quality control and inspection
The plant is ISO 9001 certified: material traceability starts with mill certificates, the first article is CMM-measured against the print, and production batches are inspected on a sampling plan. The threaded pipe union first article is measured on the CMM and thread gauges confirm class. If the assembly calls for torque, leak or pressure proof, the test is built into the quality plan, and the batch file carries the results.
Applications
The stainless steel fitting is fitted into pumps, valves and hydraulic equipment for customers who buy to drawing.
One part number for this stainless steel fitting frequently serves several assemblies, so wall bands and finishes are selected to cover the widest duty, and the drawing stays common.
Customization and options
Where designs usually differ
Typical decisions customers make on this stainless steel fitting: grade and finish for the environment, wall thickness bands, flange and rim forms, threads, bosses and closed ends, and whether the programme starts as a sample or a full release.
Each quote for this stainless steel fitting states which variations are already tooled, so you can see which options are free and which need new tooling. Price breaks for the threaded pipe union are shown against quantities on the quote.
Specifications
| Item | CNC Machined Stainless Steel Valve and Flange Fittings |
|---|---|
| Brand | AUNOV |
| Designing | Driven by your drawing or a physical sample – a manufacturability review comes back with the quotation; changes are priced before they are made. |
| Tooling | Our toolroom covers die design, wire-cut EDM and maintenance, so the die charge appears as its own quotation line, and ownership is confirmed on the quotation. |
| Samples | First-article samples ship with a dimensional report and material certificate. |
| Materials | Standard stock: carbon steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass; material substitutes are proposed only with your written approval. |
| Surface finish | Finish selected from the drawing: plating, coating, anodising or passivation; the agreed finish travels with the part number. |
| Processing | Turn-mill machining, critical diameters finished in one setup; in-process checks sit between stages, not only at the end. |
| Equipment | CNC turning centres with bar feeders and 3-/4-axis machining centres, with in-house toolmaking to keep dies and fixtures maintained. |
| Tolerance | +/-0.02 mm general machining, tighter on flagged dimensions; finer bands confirmed from capability data before quoting. |
| Delivery terms | FOB Ningbo or Shanghai, T/T with deposit and L/C for larger runs; repeat orders reuse the approved first article. |
Packaging and delivery
For this stainless steel fitting, protection starts at the surface: interleaves, bags or trays are matched to the surface treatment, in sealed cartons on export pallets, with documents issued to your instructions.
