Cast Valve Body
Cast steel and stainless steel valve bodies produced by investment casting and sand casting for industrial valve assemblies.
| Materials | Stainless Steel, Cast Iron |
|---|---|
| Processes | Casting |
| Tolerance | ±0.5mm as-cast, ±0.05mm on machined surfaces |
| Standard | ASTM A216 / A351 / A48 |
Overview
We produce cast valve bodies for gate valves, globe valves, check valves, and ball valves using both investment casting and sand casting processes. Cast valve bodies offer complex internal geometries, thin-wall sections, and smooth flow paths that would be difficult or expensive to machine from solid stock.
Casting Processes
Investment Casting (Lost Wax)
Investment casting produces near-net-shape valve bodies with excellent surface finish and dimensional accuracy. Ideal for stainless steel and alloy steel valve bodies up to 50kg.
- Surface finish: Ra 3.2-6.3μm as-cast
- Minimum wall: 3mm
- Size range: 0.1kg to 50kg
- Materials: CF8M (316 stainless), CF8 (304 stainless), WCB
Sand Casting
Sand casting is cost-effective for larger valve bodies and lower volume production. We use resin-bonded sand molds for improved dimensional accuracy.
- Surface finish: Ra 12.5-25μm as-cast
- Minimum wall: 6mm
- Size range: 1kg to 500kg
- Materials: WCB, WCC, WC6, WC9, GG25
Material Options
| Material | Grade | Application |
|---|---|---|
| Cast carbon steel | WCB, WCC | General service, water, oil |
| Cast stainless steel | CF8M (316), CF8 (304) | Corrosive media, chemical |
| Cast low alloy steel | WC6, WC9 | High temperature steam |
| Cast bronze | C90500 | Marine, low-pressure |
| Cast iron | GG25 | Low-pressure water |
Post-Casting Machining
All cast valve bodies are machined on critical surfaces:
- Flange faces: Machined flat and parallel for gasket sealing
- Bore: Machined to seat ring or ball dimensions
- Threaded connections: Drilled and tapped to standard
- Bonnet connection: Machined for bolt pattern
Why Choose Casting for Valve Bodies?
- Complex internal geometry: Flow channels and cavities cast directly
- Material efficiency: Near-net-shape reduces material waste
- Cost advantage: Lower cost than machining from solid for complex shapes
- Material variety: Wide range of cast alloys available
Specifications
| Specification | Value |
|---|---|
| Material | Cast Steel WCB / Stainless Steel CF8M / CF8 / Bronze |
| Process | Sand Casting / Investment Casting |
| Tolerance | ±0.5mm as-cast, ±0.05mm on machined surfaces |
| Standard | ASTM A216 / A351 / A48 |
| Surface Finish | As-cast / Shot Blasted / Machined |
| Weight Range | 5 - 200 kg |
Related Casting Products
- Pump Impeller and Valve Body Components — Reliable pump impeller and valve body components for industrial applications
- Cast Iron Pump Body — Reliable cast iron pump body for industrial applications
