Mechanical seal is a sealing device composed of two sealing elements (static ring and dynamic ring) which are perpendicular to the axis of the smooth and flat surface fitting each other and doing relative rotation. It depends on the pressure of the spring and the sealing medium to produce an appropriate pressing force on the contact surface of the rotating moving ring and the static ring, so that the two end faces fit closely. A thin liquid film is maintained between the end faces to achieve the purpose of sealing. The liquid film has hydrodynamic pressure and static pressure. It plays the role of lubrication and sealing.

 

Emergency pump oil seal HSNH210-54

sealing ring HB4-56J8-105

Base Ring item 7 2717-13-03

pressure hose S110-AC-FA-0080

RING, ANTI EXT

Splice D-436-36

oil pump 100LY-62

Accumulator Bladder for EH Oil Tank NXQ-AB-10/31.5-L-E

filter element SPL-25C

vacuum pump valve plate P-537

main fuel pump PVP76368R2MVP10

Accumulator blader plus seal NXQ-AB 80/31.5-L-Y 

sealing gasket HZB253-640-03-06

bladder NXQ.A-10/31.5-L-A

Gasket item 6 2675-11-02 

EH oil main pump PVH074R01AB10A250000002001AE010A

butterfly valve 125DOF4PB3

RUBBER BLADDER NXQA-10/31.5-L-EH

throttle stop valve DV12-1-10B/2

O-ring HZB253-640-03-09

Filter element LSHX-630X-SN

oil cooler LY-30

butterfly valve 150DSF4CB3

servo valve 072-1202-10

servo valve 72A-560

floater tank float valve FY-40

trip solenoid valve DG4V-3-2A-V-M-U-SA7-60

Card 

GASKET ESP HZB200-430-02-11

servo valve SF-21

mechanical seal YCZ50-250C

Pinch butterfly valve D371X-10P DN80

HP trip solenoid valve 4WE6D62/EG220N9K4/V/60

closed circulating cooling water pump 300CS-58C

globe valve SHV20

servo valve 072-1202-10

DFYL-2021-4-23-MY