| 21. | These are simple poppet valves, operating by direct float action and sealing against the upper valve seat.
|
| 22. | The WHE-DR design replaced the reed with a ball resting in a valve seat in the piston crown.
|
| 23. | To flush the toilet, the user pushes a lever, which lifts the flush valve from the valve seat.
|
| 24. | The portion of the hole where the plug meets with it is referred to as the'seat'or'valve seat '.
|
| 25. | This opens the high pressure valve permitting gas to flow past the valve seat into the medium-pressure chamber.
|
| 26. | Spark plug inserts and intake valve seats are made from aluminum-bronze alloy, while the exhaust valve seats are steel.
|
| 27. | If the faucet still drips, the valve seats or the cam washer are probably worn and should be replaced.
|
| 28. | For materials containing grains with a solids content up to 50 % a sharp-edged metal valve seat is required.
|
| 29. | Spark plug inserts and intake valve seats are made from aluminum-bronze alloy, while the exhaust valve seats are steel.
|
| 30. | Application of a grease to valve seats can aid in sealing, but it is mechanically washed away over time.
|
