The AST solenoid valve SV13-12V-0-0-00 is mainly responsible for overspeed protection. During normal operation, the AST solenoid valve is energized and closed, thereby sealing the fire-resistant oil drainage channel on the automatic shutdown emergency trip (AST) main pipe, allowing the oil pressure in the piston lower chamber of all steam valve actuators to be established. When the solenoid valve loses power, then it will open, the main pipe leaks oil, causing all steam valves to close and causing the turbine to stop. The AST solenoid valve is arranged in series and parallel, providing multiple protections. At least one solenoid valve must be opened in each channel to cause a shutdown. At the same time, it also improves reliability, and any one of the four AST solenoid valves that is damaged or refuses to operate will not cause a shutdown.
Technical Parameter
| Typical application pressure (all ports) | 350 bar (5000 psi) |
| Cartridge fatigue pressure (infinite life) | 310 bar (4500 psi) |
| Rated flow | 114 L/min (30 USgpm) |
| Internal leakage | less than 5 drops/min, max @ 350 bar (5000 psi) |
| Temperature range | -40°to 100°C(-40°to 212°F) |
| Coil duty | Continuous from 85% to 110% of nominal voltage |
| Filtration | Cleanliness code 18/16/13 |
| Housing material(standard) | Steel |
| Fluids | All general purpose hydraulics fluids such as: MIL-H-5606,SAE 10,SAE 20 etc |
Features
1. The AST solenoid valve SV13-12V-0-0-00 has hardened and ground working parts.
2. This solenoid valve lapped seat for low leakage.
3. This solenoid valve IP69K Tough coil compatibility.
4. This solenoid valve continuously rated.
5. This solenoid valve compact design with low pressure drop.
AST solenoid valve SV13-12V-0-0-00 Show
