Technical description
Body made of open-die forging with a bonnet joint and sealing ring. Bonnet joint sealing ring made of expanded graphite. The control valve is operated remotely via worm and bevel gears. The valves are equipped with closed-position signalling. Supplied according to special technical specifications.
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Drawings and dimensions
Application
Control valve for regulating the flow of water in the piping of the multiple forced circulation circuit of power units with RBMK reactors, seismically resistant, for operating parameters of 11 MPa 300 °C.
Operation
Testing
The valves are tested with demineralised water for strength and tightness at a pressure of 15 MPa and for seat tightness at a pressure of 10 MPa.
Installation
The valves are installed in horizontal piping. Control valves with the actuator on top.
Connection
Butt-welded according to ČSN and GOST standards.
Documentation
Materials of main parts
| Pos. | Part identification | Material | |
|---|---|---|---|
| Without lining | With lining | ||
| 054 | Sealing ring | Exp. graphite | |
| 048 | Nut | 17134 | |
| 044 | Bolt | 15320 | |
| 377 | Pin | 14Х17Н2 | |
| 194 | Disc | 22К | |
| Lining | - | ER 309L, ER 316L | |
| 001 | Body | 22К |
Dimensions
| DN | Pp (MPa) | B | D (max) | L | VI | kg |
|---|---|---|---|---|---|---|
| 800 | 11 | 880 | 840 | 835 | 2205 | 1648 |
Other
Hotline
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