JIS F7473 Cast Steel Globe Valve (SDNR)
Materials of main Parts
Body & Bonnet: Carbon Steel
Disc (Plug): 13% Chrome Steel
Seat Ring: 13% Chrome Steel
Stem: 13% Chrome Steel
Yoke Bush (Bushing): Phosphor Bronze
Gasket: Flexible Graphite + SS 304
Packing: Flexible Graphite
Gland: Carbon Steel
Handwheel: Ductile Iron
Bolts & Nuts: Carbon Steel
Overview
Key Characteristics & Typical Applications
• Flow Control: Excellent for throttling and flow regulation.
• Pressure Drop: High compared to gate valves due to the S-shaped flow path.
• Shut-off Capability: Provides tight sealing.
• Durability & Maintenance: The SDNR design makes it robust and easy to maintain. The renewable seat is a key feature for longevity.
• Space Consideration: The non-rising stem is ideal where vertical space is limited.
Typical Applications:
• Marine & Shipbuilding: Mainly for shipboard systems like bilge lines, ballast systems, cooling water systems, fuel oil lines, and steam service (auxiliary lines). This is the primary application implied by the JIS F standard.
• Offshore Platforms: Various process and utility services.
• General Industry: Used in power plants, chemical plants, and oil refineries for steam, water, and other non-aggressive fluids where regulation is required.
Elementary Dimensions
| Size | L | D | C | No. | h | t | H | D2 | Kg |
| 32 | 190 | 135 | 100 | 4 | 19 | 18 | 270 | 160 | 14.4 |
| 40 | 200 | 140 | 105 | 4 | 19 | 18 | 190 | 160 | 16 |
| 50 | 230 | 155 | 120 | 8 | 19 | 18 | 305 | 200 | 21.6 |
| 65 | 270 | 175 | 140 | 8 | 19 | 20 | 345 | 224 | 30.4 |
| 80 | 300 | 200 | 160 | 8 | 23 | 22 | 385 | 250 | 43.5 |
| 100 | 350 | 225 | 185 | 8 | 23 | 24 | 440 | 280 | 65.3 |
| 125 | 430 | 270 | 225 | 8 | 25 | 26 | 500 | 315 | 94.8 |
| 150 | 500 | 305 | 260 | 12 | 25 | 28 | 550 | 355 | 132 |
| 200 | 560 | 350 | 305 | 12 | 25 | 30 | 630 | 450 | 204 |
| 250 | 660 | 430 | 380 | 12 | 27 | 34 | 725 | 560 | 336 |
