Solenoid valve filters

Solenoid/isolation valves are used to equip the anti-lock braking system (ABS) to prevent fluid from entering the wheel brake area when ABS is used. The normally closed valve is then energized (opened) which releases pressure from the wheel causing a pressure drop across the isolation valve.

The above causes the isolation valve to move closing a ball seat valve which isolates the master cylinder (pedal) from the wheel (pump, solenoid, etc.). The actual movement of the isolation valve is caused by the pressure generated by the pump.  Filters in the valving system avoid contamination that could cause a valve to fail to open or close. 

Solenoid/isolation valves are used to equip the anti-lock braking system (ABS) to prevent fluid from entering the wheel brake area when ABS is used. The normally closed valve is then energized (opened) which releases pressure from the wheel causing a pressure drop across the isolation valve.

The above causes the isolation valve to move closing a ball seat valve which isolates the master cylinder (pedal) from the wheel (pump, solenoid, etc.). The actual movement of the isolation valve is caused by the pressure generated by the pump.  Filters in the valving system avoid contamination that could cause a valve to fail to open or close.