Ball Valve 12 Inch Class 600 Flanged Gear Operated
High-performance trunnion-mounted ball valve designed for critical service applications. Features cast steel WCB body, SS316 ball with weld overlay cladding seat for superior sealing and durability. Gear operated for precise control.
Key Specifications
- Size: 12 inch (300mm) NB
- Pressure Class: ASME 600 (Class 600)
- Operation: Manual - Gear Operated
- End Connection: Flanged as per ASME B16.5
Design Standards
- Design Code: API 608
- Flange Standard: ASME B16.5
- Testing: API 598 / API 6D
- Face to Face: ASME B16.10
Salient Features
- API 608 design for petroleum & gas service
- Class 600 rating for high-pressure applications
- SS316 ball for excellent corrosion resistance
- Weld overlay cladding on seat for durability
- Gear operated for easy manual operation
- ASME B16.5 flanged connections
- Cast steel WCB body construction
- Full bore design for minimal pressure drop
- Bi-directional sealing capability
- Anti-static device for safe operation
Materials of Construction (MOC)
| Sr. No. | Component | Material | Specification |
|---|---|---|---|
| 01 | Body | Cast Steel | ASTM A216 Grade WCB |
| 02 | Ball | Stainless Steel | SS 316 |
| 03 | Seat | Stainless Steel | SS 316 with Weld Overlay Cladding |
| 04 | Stem | Stainless Steel | SS 316 / ASTM A182 F316 |
| 05 | Body Seal | Graphite | Spiral Wound Gasket with SS316 windings |
| 06 | Stem Packing | Graphite | Braided graphite rings with PTFE |
| 07 | Bolting | Alloy Steel | ASTM A193 Gr.B7 / A194 Gr.2H |
| 08 | Gear Box | Cast Iron/Steel | As per manufacturer standard |
| 09 | Handwheel | Carbon Steel | Painted finish |
Dimensions (Class 600 - ASME B16.10)
| Parameter | Value | Unit |
|---|---|---|
| Nominal Size | 300 | mm (12 inch) |
| Face to Face (Full Bore) | 838 | mm |
| Flange OD | 520.7 | mm |
| Bolt Circle Diameter (PCD) | 450.8 | mm |
| Number of Bolts | 20 | nos |
| Bolt Hole Diameter | 34.9 | mm |
| Flange Thickness | 72.9 | mm |
| Raised Face Height | 6.4 | mm |
| Bore ID | 295.3 | mm |
| Overall Height (with gear) | ~1200 | mm (approx) |
Dimensions as per ASME B16.10 Class 600. Tolerance: ±3mm. Exact dimensions on request.
Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Type | Ball Valve (Trunnion Mounted) |
| Size | 12 inch (300mm) NB |
| Pressure Rating | ASME Class 600 (PN 100) |
| Design Pressure | 102 bar @ 38°C |
| Temperature Range | -29°C to +425°C |
| End Connection | Flanged (RF) as per ASME B16.5 |
| Operation | Manual - Gear Operated |
| Port Type | Full Bore |
| Flow Direction | Bi-directional |
| Seat Type | Metal to Metal (SS316 with Weld Overlay) |
| Leakage Class | Class V (Soft Seated) / Class IV (Metal Seated) |
| Design Code | API 608 |
| Testing Standard | API 598 / API 6D |
| Fire Safe | API 607 (Optional) |
Test Pressure
| Test Type | Pressure (bar) | Pressure (PSI) | Medium |
|---|---|---|---|
| Shell / Body Test (Hydrostatic) | 153 | 2220 | Water |
| Seat Test (Hydrostatic) | 112 | 1628 | Water |
| Seat Test (Pneumatic) | 7 | 100 | Air / Nitrogen |
Applications
- Oil & Gas Pipelines
- Petrochemical Plants
- Chemical Processing
- Power Generation
- Offshore Platforms
- LNG / LPG Terminals
- Water Treatment
- Process Industries
Frequently Asked Questions
What is the design code for this Ball Valve?
This ball valve is designed and manufactured as per API 608 standard, which covers metal ball valves with flanged, threaded, and welding ends for petroleum and natural gas industries.
What type of seat material is used?
The seat is made of SS316 stainless steel with weld overlay cladding, providing excellent corrosion resistance and durability for metal-to-metal sealing.
Why is gear operation used for this valve?
Gear operation is used for large bore valves (12 inch) because it provides mechanical advantage, making it easier to operate the valve and providing precise control over the ball position.
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