The stainless steel ball valve body from Ningbo Ruican is a precision investment cast component engineered for ball Valves used in chemical processing, water treatment, food and beverage, pharmaceutical, and marine applications. The CF8M (AISI 316 stainless steel) construction provides outstanding corrosion resistance against chlorides, acids, and aggressive media, while the Investment Casting process accurately forms the complex internal flow cavity, stem bore, and flange geometry in a single operation — eliminating the welds and joints required with fabricated valve bodies.
Ningbo Ruican manufactures ball valve bodies from 1/2″ to 8″ nominal size, with flanged, threaded, or welded end connections per ANSI, DIN, or JIS standards. Our casting process achieves internal surface finishes that minimize flow turbulence and media entrapment, and our CNC MACHINING ensures precise stem bore alignment for smooth quarter-turn operation and bubble-tight shut-off (API 598 / ISO 5208 Class A zero leakage).
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Stainless Steel Ball Valve Body |
| Material | CF8M (AISI 316 Stainless Steel, 1.4408) |
| Manufacturing Process | Investment Casting (Lost Wax) |
| Size Range | 1/2″ – 8″ (DN15 – DN200) |
| Pressure Class | 150# – 600# (PN16 – PN100) |
| Tensile Strength | ≥ 485 MPa |
| Yield Strength | ≥ 205 MPa |
| End Connections | Flanged (ANSI/DIN/JIS), NPT threaded, butt weld, socket weld |
| Dimensional Tolerance | ISO 8062 CT4–CT6 |
| Test Standards | API 598, ISO 5208, MSS SP-72 |
| Surface Treatment | Pickled & passivated, mirror polished (Ra 0.4–0.8 μm optional) |
| Certification | EN 10204 3.1 material certificate |
Key Features
- Complex Flow Geometry Cast-to-Shape: Investment casting forms the ball cavity, flow port, and stem pocket in one piece
- 316 Stainless Corrosion Resistance: CF8M withstands chloride environments and aggressive chemical media
- Hygienic Surface Option: Interior polishing to Ra 0.4 μm for food, beverage, and pharma applications
- Multi-Standard End Connections: ANSI, DIN, JIS flanges or threaded/welded ends
Quality Assurance
- Chemical composition verified by spectrometer (batch tested)
- Intergranular corrosion test per ASTM A262 Practice A/E
- 100% dye penetrant inspection of machined sealing surfaces
- Hydrostatic shell and seat testing available
- IATF 16949 certified quality management
Applications
Chemical processing, water and wastewater treatment, desalination, food and beverage, pharmaceutical, marine, oil and gas, and HVAC systems.
Why Choose Ningbo Ruican?
- Specialized Stainless Steel Casting expertise with controlled furnace atmosphere
- Low porosity, high integrity castings for pressure-retaining components
- Complete machining + pressure testing services
- Flexible order quantities: samples, small batches, and high volume
