mechanical trip isolation valve F3DG5S2-062A-220AC-50DFZK-VB-08

Short Description:

The mechanical trip isolation valve F3DG5S2-062A-220AC-50DFZK-VB-08, also called mechanical trip solenoid valve, is used to isolate the fluid. In short, it is a switch. The isolation valve belongs to the on-off valve, which is only in the open or closed state. Unlike the on-off valve, it basically has a requirement for the leakage level. Relatively speaking, the requirements for safety are higher than those for on-off valves, and some parts also have higher requirements for opening and closing speed. It should be said that it is a valve that emphasizes fluid separation on both sides and higher safety.

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Product Detail

Main application

F3DG5S2-062A-220AC-50DFZK-VB-08 mechanical trip isolation valve is mainly used to return the high pressure safety oil to the safety return main pipe through the throttle hole, emergency trip solenoid valve and mechanical trip valve when the main steam valve is not latched, so that the high pressure safety oil cannot be established and the unloading valve is opened.

The mechanical trip isolation valve F3DG5S2-062A-220AC-50DFZK-VB-08 is also used in the emergency trip system of steam turbine, and can also be used in the flying ring fuel injection test. During the fuel injection test, the solenoid valve shall be powered off first, and the high-pressure safety oil return port shall be sealed, so that the unit will not be interrupted during the flying ring fuel injection test. At this time, the trip protection of the system is operated by the high-pressure trip components and the hydraulic servomotor and trip solenoid valve of each valve.

Working principle

When the main steam valve is not latched, the high pressure oil returns to the safety return main pipe through the throttle hole and the trip valve, so that the high pressure safety oil cannot be established and the unloading valve is opened. At this time, both the oil inlet solenoid valve and the hydraulic servomotor can be opened. The trip valve assembly is mainly composed of mechanical trip isolation valve F3DG5S2-062A-220AC-50DFZK-VB-08 and solenoid valve. When the mechanical trip valve is closed, the return port of high-pressure safety oil is sealed, and when it is opened, it is connected with the return port.