Zero Leaking Brass Safety Valve 5.7A25 for Hydrogen System

Date:2021/2/25 10:36:11 Visits: Author:Dongfang YOYIK Engineering Co; Ltd,


The Safety Valve 5.7A25 is used in the pipeline of the generator hydrogen cooling system and does not allow leakage. It ensures that the system does not cause accidents due to excessive pressure. It has good sealing, high safety and long service life.


The function of the generator hydrogen cooling system is to cool the stator core and rotor of the generator, and carbon dioxide is used as the replacement medium. The generator hydrogen cooling system adopts closed hydrogen circulation system, and the hot hydrogen is cooled by cooling water through the generator hydrogen cooler.



Our company mainly offer spare parts of power unit, including thousands of types and models, for power plants, steel mills, cement mills, chemical plants and shipyards. Our products can be applied various systems from EHC, TSI, MEH, DCS, to excitation system and hydrogen oil water system.

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

Sliding block TG24052-2005

Seal Oil Stop Valve JC65-1.6P

vacuum pump solenoid valve Coml

AST solenoid valve 3D01A009

300MW turbine DC Emergency pump coupling driving pin 125LY-23-4

filter RFL-110*5H

relief valve S-GB-10-L-46


accumulator Nitrogen charger YAT-I 16MPa

Seal kit NXQ-A-40/31.5-L-EH

Cartridge valve CV1-NG25-D20

servo valve SM4-10-50

Pump Wheel shaft internal bearing YOT51A-06-00

pressure hose SMS-15-305mm-C

Gasket esp. 1 HZB200-430-02-05

AST/OPC solenoid valve coil CCP115M 115VDC 19W PAT5002253

bladder NXQ-B-150/2-F-A

butterfly valve 50DSF4PB3

discharge valve W204815-316

Regulating valve KS100ZXNO016 DN100 PN16

O-ring HZB253-640-03-08

DC Emergency pump 125LY-23-4

solenoid directional valve 4WE10E20/AW220-50NZ4

globe check Throttling valve KJC40-16

pressure hose S110-AC-FB-0080



BFP low pressure accumulator skin NXQAB-100/-10-L

servo valve 


sealing ring HB4-56J8-54

oil cooler LY-30

sealing ring HB4-56J8-87

main sealing oil pump ACG052K7NVBP

Solenoid Valve Z6206052


Recommended Products

Jacking Oil Pump Tilting Pad Journal Bearing Main Shaft  
Jacking Oil Pump Tilting Pad Journal Bearing Main Shaft Hydrogen Cooling System