Machined Valve Body
CNC machined valve bodies from solid bar stock and forgings, with precision bores, flange faces, and threaded connections.
| Materials | Stainless Steel, Carbon Steel |
|---|---|
| Processes | CNC Machining |
| Tolerance | ±0.01mm standard, ±0.005mm on critical bores |
| Standard | ASME B16.34 / API 6A / API 600 |
Overview
CNC machined valve bodies are produced from solid bar stock, forgings, or cast blanks that require precision machining. Our 5-axis CNC machining centers handle complex geometries including internal bores, flange faces, threaded connections, and ball seats — all in a single setup for maximum accuracy.
Machining Capabilities
5-Axis CNC Milling
Complex valve body geometries machined in a single setup:
- Internal flow channels and cavities
- Multi-angle flange faces
- Curved ball valve seat profiles
- Threaded bonnet connections
CNC Turning
Precision bores and cylindrical features:
- Seat ring bores (±0.005mm)
- Stem stuffing box bores
- Threaded connections (NPT, BSPT, BSPP)
- Bonnet flange outside diameters
Deep Hole Boring
Long-reach boring for valve body internals:
- Bore depth up to 500mm
- Bore diameter 10mm to 200mm
- Surface finish Ra 0.4 achievable
Material Options
| Material | Grade | Application |
|---|---|---|
| Stainless steel | 316L, 304L | Corrosive media, chemical |
| Duplex stainless | 2205, 2507 | High-chloride, sour service |
| Carbon steel | 1045, 4140 | General service |
| Alloy steel | F22, F91 | High temperature |
| Bronze | C95400 | Marine, low-pressure |
Advantages of Machined Valve Bodies
- Precision: Critical bores held to ±0.005mm
- Material integrity: Solid stock has no casting defects
- Surface finish: Ground sealing surfaces to Ra 0.2
- Flexibility: Design changes only require program update
- Lead time: No pattern or mold tooling needed
Tolerances on Critical Features
| Feature | Standard | Precision |
|---|---|---|
| Seat bore | ±0.02mm | ±0.005mm |
| Flange face flatness | 0.05mm | 0.01mm |
| Bolt circle | ±0.1mm | ±0.02mm |
| Surface finish (sealing) | Ra 0.8 | Ra 0.2 |
Specifications
| Specification | Value |
|---|---|
| Material | Stainless Steel 316L / Carbon Steel 4140 / Duplex 2205 |
| Process | CNC Machining (Milling & Turning) |
| Tolerance | ±0.01mm standard, ±0.005mm on critical bores |
| Standard | ASME B16.34 / API 6A / API 600 |
| Surface Finish | Machined / Deburred |
| Weight Range | 0.1 - 20 kg |
Related Machining Products
- 3D Printed Valve Body — Precision-engineered 3d printed valve body for fluid control
- Hydraulic Cartridge Valve Inserts — Precision-engineered hydraulic cartridge valve inserts for fluid control
