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1.
After the installation, air exists in the product, and the float [10] is lowered by its own weight. In this
condition, since the valve disc [6] is kept open by the lever [4], air is discharged outside by the internal
pressure of the system.
2.
When air is discharged, hot or cold water flows into the product to make the float come up on
buoyancy and the force that keeps the valve disc open through the lever is lost. Then the valve disc is
closed by the spring [9] and pressure to the valve disc.
3.
When air bubbles are generated in the system and collected into the product, the inside water level
drops, and the float loses buoyancy and opens the valve disc to discharge air.
4.
Repeating the processes 2. and 3., air in the system can be removed.
4. Operation
Structure
3
No.
Parts name
1
Body
2
Cover
3
Spring tray
4
Lever
5
Hanger metal
6
Valve disc
7
Guide
8
Valve seat
9
Spring
10
Float
11
O Ring
12
O Ring
13
O Ring
14
Stopper
15
Elbow cap
■EPDT-308■
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