12 Inch Ball Valve
A 12-inch ball valve is a large industrial valve designed to control the flow of liquids or gases in high-capacity piping systems.
- Size
- 12" (DN300)
- Pressure Rating
- Class 150-2500 (PN20-420)
- Unit Price
- $1215-$24000
- Origin
- China
Key Specifications
- Size: 12-inch nominal pipe size (NPS), corresponding to the inner diameter of connected pipes.
- Pressure Rating: Typically follows ANSI classes (e.g., Class 150, 300, 600) or API standards. Common in high-pressure oil/gas or water systems.
- Material:
Body: Stainless steel (corrosion-resistant), carbon steel (durable for industrial use), brass (lower pressure), or PVC (chemical resistance).
Seats/Seals: PTFE, elastomers (e.g., EPDM, Viton) for tight shut-off. - Connection Types: Flanged (common for easy installation), butt-weld (permanent, high-integrity), or threaded (rare for this size).
Types
- Full Port (Full Bore): Bore matches pipe diameter, minimizing pressure drop—ideal for slurry or viscous media.
- Reduced Port: Smaller bore, lower cost, but higher pressure loss.
- Trunnion-Mounted: trunnion ball for high-pressure/large-scale applications (common for 12-inch valves).
Actuation Methods
- Manual: Gear-operated or lever handles (for infrequent use).
- Automated: Electric, pneumatic, or hydraulic actuators for remote/automated systems.
Applications
- Oil & Gas: Pipeline isolation, refining processes.
- Water/Wastewater: Mainline control, pumping stations.
- Chemical/Power Plants: Handling aggressive fluids or steam.
- Marine/Shipbuilding: Large piping systems.
12 Inch Ball Valve Dimensions
12 inch ball valve face to face dimensions (flanged RF)
12 inch ball valve end to end dimensions (welded ends)
12 inch ball valve face to face dimensions (flanged RTJ)
| Inch | mm | Pressure Rating | Face to Face Dimension, inch (mm) (Full Bore and Reduced Bore Ball Valve) |
Minimuma Bore Diameter inch (mm) |
||
| Raised Face(A) | Weld End(B) | Ring Joint(C) | Full Bore Ball Valve | |||
| 12" | DN300 | Class 150 | 24.00 (610) | 25.00 (635) | 24.50 (622) | 11.93(303.0) |
| 12" | DN300 | Class 300 | 25.50 (648) | 25.00 (635) | 26.13 (664) | 11.93(303.0) |
| 12" | DN300 | Class 600 | 33.00 (838) | 33.00 (838) | 33.00 (838) | 11.93(303.0) |
| 12" | DN300 | Class 900 | 38.00 (965) | 38.00 (965) | 38.13 (968) | 11.93 (303.0) |
| 12" | DN300 | Class 1500 | 44.50 (1130) | 44.50 (1130) | 45.13 (1146) | 11.30(287.0) |
| 12" | DN300 | Class 2500 | 56.00 (1422) | 56.00 (1422) | 56.88 (1445) | 10.43(265.0) |
a There is no upper size limit for a valve bore
12 Inch Ball Valve Weight, in Kgs
| Inch | mm | Pressure Rating | Trunnion Mounted Ball Valve (Full Bore) |
|
| Cast Steel | Forged Steel | |||
| 12" | DN300 | Class 150 | 475 | 705 |
| 12" | DN300 | Class 300 | 507 | 763 |
| 12" | DN300 | Class 600 | 820 | 855 |
| 12" | DN300 | Class 900 | 1018 | 1125 |
| 12" | DN300 | Class 1500 | 1338 | 1970 |
| 12" | DN300 | Class 2500 | ... | 3267 |
Note: All weights are for full-bore ball valves.
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Valve type (ball, gate, globe, check etc.), valve size, pressure class, valve material, and end connection (flanged, butt welding etc.)