Turbine OPC Solenoid Valve Coil 300AA00126A from YOYIK

Date:2020-9-15 17:12:00 Visits: Author:Dongfang YOYIK Engineering Co; Ltd,

OPC solenoid valves are overspeed protection control solenoid valves, which are controlled by the OPC part of the DEH controller. In normal operation, these two solenoid valves are non-charged and normally closed, which closes the oil discharge channel of the OPC main pipe, so that the lower chamber of the actuator piston of the regulating steam valve and the reheat regulating steam valve can build up oil pressure.

When the OPC control board is operating, for example, when the speed reaches 103% of the rated speed, the two solenoid valves are excited (energized) to open to discharge the OPC mother pipe oil. In this way, the unloading valve on the corresponding actuator is opened quickly, so that the regulating steam valve and the reheat regulating steam valve are quickly closed.


YOYIK provides multiple types of spare parts and equipments for power plant :

sealing oil pump ACG070K7

solenoid valve 4WE6E6X/EG24NZ4

level switch OWK-1G

AST solenoid valve GS061600V

reducer motor 30-WS

main bearing sealing set GU13832

sealing ring HB4-56J8-69

solenoid relief valve ECT5-10F-08-M-H5-30TB

solenoid valve SV4-10-V-0-0-00

trip globe valve SHV6

Rubber bladder NXQ-A-40/31.5-L-EH

sealing oil smoke discharging fan S2FDHB-7-2

trip globe valve SHV15

sealing ring HB4-56J8-90

Gate valve Z61H-64V


Shutoff valve F3RG03D330

sealing gasket HZB253-640-03-07

High temperature nut with groove GH4 

globe valve DY25.PE492-EF

level switch OWK-1G