4 Commissioning [specialist]
10/20
Installation-Operation Extension Station ST1 TOP - Copyright by Hamworthy
0DNO0202
Airstop
The Airstop with manual vent valve is used to vent the solar system.
To ensure perfect deaeration of the solar circuit, the flow velocity
must be at least 0.3 m/s in the flow line.
Pipe diameter [mm]
Flow rate at 0.3 m/s
∅ outside
∅ inside
l/h
l/min
15
13
~ 143
~ 2.4
18
16
~ 217
~ 3.6
22
20
~ 339
~ 5.7
The air liberated from the solar fluid is collected in the upper part of the Airstop and can be
released at the vent plug.
Danger: danger of scalding due to vapour escape!
The escaping medium can have a temperature of more than 100 °C and
cause scalding.
Note: venting the solar system after commissioning
At the beginning, vent the solar system daily and then weekly or monthly,
depending on the vented air quantity. Thus, an optimum operation of the
solar installation is ensured. Check the system pressure after venting and
increase it to the specified operating pressure, if necessary.
Summary of Contents for Trigon ST1
Page 25: ......