The Brass and Stainless Steel Check Valve Bodies is produced by Aunov Tech from brass or stainless steel, formed and finished under one roof. In the assembly, the CNC machined part provides the finished surfaces, threads and seats the mating parts locate on. Die work, machining and CMM inspection are all in-house, so repeat orders stay aligned with the approved sample on one production route.
Product overview
What defines this stainless steel valve is, the forming route, the tolerance band and the sealing faces, re-checked whenever the drawing is revised.
Forming, machining and finishing for this stainless steel valve happen on one site, so a drawing change is absorbed in one step, and the die record stays with your part number.
How it is manufactured
Every stainless steel valve follows the same routed path: The shell is drawn from a blank in successive stages, annealed where the wall thins; piercing and trimming are done in the same die line.
Each flanged bobbin hub shipment is verified against the master sample before it leaves the shop. The signed flanged bobbin hub sample remains the reference and is kept with the job file.
Materials and finishing
Base materials in stock: cold-rolled steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass, copper and bronze with 304 / 316 stainless steel specified on the drawing for this stainless steel valve.
The coating is matched to the working environment: electrophoresis, powder coating, anodising and zinc / nickel plating. It is written into the drawing for this stainless steel valve, so it cannot drift between batches.
Later runs are measured back to the first article, so the colour and grain of the finish stay stable.
Quality control and inspection
Production runs under an ISO 9001 certified quality system: stock arrivals are checked against mill certificates, first articles are measured on a CMM, and production batches are inspected on a sampling plan. First articles of the flanged bobbin hub are CMM measured, with threads gauged to class and diameters recorded. If the assembly calls for torque, leak or pressure proof, the test is built into the quality plan, and the inspection report ships with each batch.
Applications
The stainless steel valve is fitted into pumps, valves and hydraulic equipment under schedules that run for years at a time.
Drawings for this stainless steel valve are adapted across programmes, so a single grade and coating can cover each application, and the drawing stays common.
Customization and options
What customers usually vary
What customers usually vary on this stainless steel valve: coating, wall bands, flange profiles, threads and the degree of closure on the ends, and whether orders run as prototypes, pilot lots or scheduled batches.
Tooled and untooled options for this stainless steel valve are listed separately, so new tooling is only quoted where it is genuinely required. The approved revision of the flanged bobbin hub drawing becomes the master version.
Specifications
| Item | Brass and Stainless Steel Check Valve Bodies |
|---|---|
| Brand | AUNOV |
| Designing | Made to your 2D/3D drawings (PDF, DWG, STEP, IGS) – a manufacturability review comes back with the quotation; the agreed version governs every later batch. |
| Tooling | Dies, fixtures and gauges are made in our own toolroom, so die cost stays transparent, and the die remains dedicated to your part. |
| Samples | Sample parts are measured and reported before submission, so the part is proven before it is made in volume, and later batches are gauged back to the signed sample. |
| Materials | Standard stock: carbon steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass; the final grade is fixed with the drawing review. |
| Surface finish | Surface treatment matched to the duty: plating, coating or polishing; the agreed finish travels with the part number. |
| Processing | CNC turning with milling and drilling in as few setups as the geometry allows; first articles verify the whole flow before the run is released. |
| Equipment | CNC turning centres with bar feeders and 3-/4-axis machining centres, backed by CNC turning centres and a climate-controlled inspection room. |
| Tolerance | +/-0.02 mm general machining, tighter on flagged dimensions; finer bands confirmed from capability data before quoting. |
| Delivery terms | FOB, with DDP offered for EU and US addresses, T/T or L/C, with D/P accepted on repeat business; repeat orders reuse the approved first article. |
Packaging and delivery
This stainless steel valve is packed to protect the finish: interleaving, bagging or tray packing is matched to the surface, in sealed cartons on export pallets, documented and marked to your instruction.
