Sizing of safety equipment
Expansion vessel sizes are relative to the volume of liquid in the system. Therefore it is
important that the Thermomax ‘Technical Design Guide’ is consulted for each system.
Pipe Sizing
(minimum of 15mm diameter pipework must be used)
Important Pre Installation Information
Collector
Area
m
2
Pressure Drop - Tyfocor LS
Flow Rate
Ltr/hr
DF
Pressure
Drop mbar
HP
Pressure
Drop mbar
Pipe External
Diameter
mm
1
60
15
2
2
120
15
3.5
3
180
15
10
4
240
15
21
5
300
22
35*
6
360
22
53
7
420
22
80*
8
480
22
110*
9
540
22
153
2
3.5
10
21
35*
53
80*
110*
153
Collector
Area
m
2
DF Expansion Vessel Sizing
Expansion
Vessel Size
Ltr
Cooling
Vessel Size
Ltr
Static
Height
m
1
5
18
5
2
5
18
5
3
5
25
8
4
5
25
8
5
5
35
12
6
5
35
12
7
5
35
12
8
5
50
18
9
5
50
18
Collector
Area
m
2
HP Expansion Vessel Sizing
Static
Height
m
Expansion
Vessel Size
Ltr
1
5
12
2
5
12
3
5
12
4
5
12
5
5
12
6
5
18
7
5
18
8
5
18
9
5
18
03
When selecting a vessel for intermediate sizes, the vessel should be selected by rounding area up to nearest m². All sizes above
are calculated based on a 17ltr system volume as an example. For larger volumes the expansion vessel size should be recalculated.
Cooling vessel sizes are dependant on pipe dimensions and can be calculated on a case by case basis or selected using the table
above as a guideline.
* figures marked as such are estimates based on other measurements
Cooling Vessel
(only required with DF systems)
It is strongly recommended that a cooling vessel is used with the DF collector to
protect the expansion vessel from stagnation temperatures.
Summary of Contents for Varisol DF
Page 1: ...Installation Manual ...
