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1.
After installation, air exists in the product, and float [11] is lowered by its own weight. In this condition,
since valve [8] is kept open by lever [7], air is discharged outside by internal pressure of the system.
2.
When air is discharged, hot or cold water flows into the product to make float [11] come up on
buoyancy and force that keeps valve [8] open through lever [7] is lost. Then valve [8] is closed by
spring [9] and pressure to valve [8].
3.
When air bubbles are generated in the system and collected into the product, water level inside the
product drops, and float loses buoyancy and opens valve [8] to discharge air.
4.
Then the operation goes back to the above process 2. Repeating the processes 2 and 3, air in the
system can be removed.
Structural view
3. Operational description
3
No.
Parts name
1
Body
2
Cover
3
Guide
4
Hanger metal
5
Valve seat
6
O ring
7
Lever
8
Valve
9
Spring
10
Spring tray
11
Float
12
Elbow cap
13
O ring
14
Stopper
■EPDT-273b■
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