Although these valves keep pressure loss and fluid resistance at a low level, they can only be used for on-off applications.
We use different materials for the valve casing according to the nominal diameter:
- 65 mm and above・・・Cast steel
- 50 mm and below・・・Forged steel
| Name | Gate Valve |
| Body Material | ASTM, ASME, JIS. Cast Steel / Forged Steel Carbon Steel, 1Cr0.5Mo Steel, 2.5Cr1Mo Steel, Stainless Steel, 9Cr1Mo-V Steel, etc. |
| Fluid | Water, Steam, Gas, Oil, etc. |
| Pressure Class, Size(Standardized) | Class 150 - 2500: - 600 mm Class 3500: - 400 mm Class 4500: - 300 mm |
| Connection Form | Socket weld, butt weld, flanged* |
| Operation Method | Manual (including the type with a manual reduction gear), electric |
*For valves with flanged connection, indicate the surface shape (raised face, flat face, etc.) for each flange standard (ASME, JIS, etc.)
• The above specifications are for standard products. Please inquire for other specifications..
Gate valves allow for various applications and are thus used in a wide range of fields. At Okano, we also manufacture valves that meet highly specialized requirements.
The reactor recirculation pump (RRP) discharge valve is a foremost example. This is a type of gate valve with an array of unique structural features, including one that reduces valve operation time to enable rapid closure in the event of an emergency.
