Kenmore 808353 manual Washer Atmospheric PRESSURE£ B, Plunger Diaphragm, Flow Washer

A Operation

Figure 22 shows a cross section of the water inlet valve in its closed position and Figure 23 shows it in its open position The water pressure at B and C has equalized because the bleed hole opening permits water to flow from B to C Pressure at A is atmospheric (Figure 2.2)

The valve remains closed because the higher water line pressure at C is greater than the atmospheric pressure at A. When the solenoid coil is energized by the timer, the plunger is withdrawn from the diaphragm opening Water in compartment C wilt then escape through the diaphragm opening causing the pressure in the compartment to fall to almost atmoshpheric pressure, The higher water line pressure at B forces the diaphragm away from its seat, opening the valve Water then flows through the screen under the diaphragm and out the valve.

PLUNGER

HOLE

LINE WATER PRESSURE

WASHER

ATMOSPHERIC PRESSURE£ B FIGURE22

CLOSEDPOSITION

PLUNGER

DIAPHRAGM

B -FLOW WASHER

FIGURE23

OPEN POSI'[ION

When the solenoid releasesthe plunger, the hole in the center of the diaphragm is sealed. Water then flows through the bleed hold in the diaphragm until the pressure in compartment C rises to water line pressure. Since the area of the diaphragm at water line pressurein compartment Cis greater than the area at water fine pressure in compartment B, the diaphragm is forced closed. The pressure at A is always lower than full line pressure because water passing through the valve is escaping to the open air.

22