Gate Valve
Gate valves vertically partition the path of the fluid using a gated structure, creating a straight-line flow of fluid.
Although these valves keep pressure loss and fluid resistance at a low level, they can only be used for on-off applications.
Specifications
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 Materia | ASTM, ASME, JIS.
Cast Steel / Forged Steel
Carbon Steel, 1Cr0.5Mo Steel, |
| 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..
RRP discharge valve
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.
