JIS 10K Cast Bronze 2 - way Ball Valve
Our JIS 10K cast bronze 2-way ball valve is engineered to Japanese Industrial Standards with a reinforced cast bronze body and thicker wall construction, featuring a precision-machined bronze ball that provides bubble-tight sealing and minimal flow resistance at operating pressures up to 1.0MPa while maintaining superior corrosion resistance. Built with heavier flanges, more bolt holes and a robust stem mechanism compared to 5K class valves, this medium-pressure bronze ball valve delivers dependable performance, smooth operation and extended service life in demanding seawater and corrosive fluid applications requiring higher pressure containment.
Overview
Application:Widely specified for medium-pressure seawater systems, desalination plants, chemical processing, oil and gas auxiliary systems, and industrial process piping where 5K class bronze ball valves are insufficient for system pressure requirements and corrosion resistance is essential. Also commonly used in coastal power plants, offshore platforms, shipbuilding projects and Japanese-standard industrial facilities throughout Southeast Asia, particularly for main pipeline isolation and process control applications requiring both reliable corrosion resistance and moderate pressure capability in a single durable valve unit.
Material Specification:
| No. | Parts | Material |
| 1 | Body | BC6 |
| 2 | Body Cap | BC6 |
| 3 | Ball | SUS 304 |
| 4 | Stem | C 3604 |
| 5 | Seat Ring | PTFE |
| 6 | Gland Flange | BC6 |
| 7 | Gland Ring | C 3604 |
| 8 | Stopper | SS 400 |
| 9 | Stop Ring | SUS 304 |
| 10 | Lever Handle | AL |
| 11 | Hex Bolt | SUS 304 |
| 12 | Gland Bolt | SUS 304 |
| 13 | Thrust Washer | PTFE |
| 14 | Gland Packing | PTFE |
| 15 | Gasket | PTFE |
Technical Specifications:
| Rating | JIS 5K | |||
| Standards | Face to Face | JIS B2002 | ||
| Flange Dimension | JIS B2210 | |||
| Basic Design | JIS B2081 | |||
| Inspection & Testing | JIS B2003 | |||
| Hydrostatic Test Pressure (kgf/cm²) | Body | 24 | ||
| Seat | 15 | |||
Drawing:

Dimensions:
| Rating | Size | Ød | C | ØD | H | L | W | t | N-Øh |
| JIS 10K | 15A | 15 | 70 | 95 | 105 | 110 | 123 | 12 | 4-15 |
| 20A | 20 | 75 | 100 | 107 | 120 | 123 | 14 | 4-15 | |
| 25A | 25 | 90 | 125 | 117 | 130 | 143 | 14 | 4-19 | |
| 32A | 32 | 100 | 135 | 122 | 160 | 143 | 16 | 4-19 | |
| 40A | 40 | 105 | 140 | 130 | 180 | 233 | 16 | 4-19 | |
| 50A | 50 | 120 | 155 | 135 | 178 | 233 | 16 | 4-19 | |
| 65A | 65 | 140 | 175 | 155 | 190 | 270 | 18 | 4-19 | |
| 80A | 80 | 150 | 185 | 172 | 203 | 270 | 18 | 8-19 | |
| 100A | 100 | 175 | 210 | 214 | 229 | 400 | 18 | 8-19 |
