HP TRIP SYSTEM Mechanical Isolation Valve F3DG5S2-062A-220AC-50-DFZK-V/B08

Date:2020/8/24 10:49:48 Visits: Author:Dongfang YOYIK Engineering Co; Ltd,

The high pressure trip system consists of main trip solenoid valve, mechanical isolation valve and emergency trip valve which can realize on-line testing.


The function of isolation valve is to isolate the emergency shutoff valve from the safety oil system when needed (such as doing an oil filling test, etc.). The state of the shutoff valve no longer affects the safety oil pressure.


Dongfang Yoyik Engineering Co., Ltd is a professional supplier of power unit spare parts. We have pneumatic and hydraulic components brands both domestic and overseas. We manufacture spare parts of generators, turbines and boilers. The name of Yoyik is renowned in this industry.


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

#DF-stator cooling water pump YCZ50-250B-DF

check valve F3C5G825


AST solenoid valve SV13-12V-C-0-00

pressure hose S100-AC-AC-0200


actuator valve 1A70

valves hydraulic Vickers SM4-20(20)76-80/40-10-S10

300MW turbine DC Emergency pump impeller gasket 125LY-23-5

differential pressure Regulating valve ZZCN-10B

bellows stop valve WJ40F-1.6P

jacking oil pump A3H37-LR01KK-10

MECHANICAL SEAL 1D56-H75/95-00 00 11

SPIRAL WOUND GASKET A42-80-250 (Part: 109)

Three screw pump 3GR42*4A JB/T10886

valve body ring KSB65-250C

Regulating valve 0125ZMAW16KQ13UEXERH

Gearbox CP467-1

stator cooling water pump YCZ65-250B

oil pump 100LY-215-5

Valve plate 977HP

Hydraulic hose 35MPa, 12mm

Ignition XDH-20C

EH oil Circulating coupling F3-V10-1S6S-1C20

switch valve SQ41F-16


300MW turbine AC lube pump coupling 125LY-35-5

turbine AC lube pump 125LY-40-B

Globe valve J941H-16C


oil water detector alarm OWK-2 DN25 0-1.0MPA

stator cooling water pump DFB80-50-220

stator cooling water pump YCZ50-250B