Thermal
expansion tank and Heating expansion tank:
Description :
Water expands when water is heated, the greater
volume results in higher
pressure to the whole system, and causes safety issues. The system
needs
an expansion tank to accumulate the expanded water and maintain safe
operating pressures. When the water cools the stored water in the
expansion tank refills the system to keep the pressure stable at the
controlled range.
The differentiation between a thermal expansion tank and a heating
expansion tank is, heating expansion tank connect to a non potable
water heating system, and use a boiler and radiators to increase the
temperature, a thermal expansion tank is used on portable water system. |
The Formulation of Tank
Sizing:
Dimensions and Capacities of thermal expansion
tank |
|
Model
|
Capacity
Gallons
|
Maximum
Acceptance Volune
|
System
Connection
|
Dimensions(inches)
|
|
Diameter
|
Height
|
Weight(1bs)
|
|
PH-5
|
2.1
|
1.0
|
3/4"
NPT iron with
Stainless steel insert |
8.0
|
12.5
|
5.5
|
|
PH-12
|
4.5
|
2.5
|
11.0
|
14.0
|
10.0
|
|
XT-8
|
2.1
|
1.0
|
3/4"
NPT stainless
steel connection |
8.0
|
12.5
|
5.5
|
|
XT-18
|
4.5
|
2.5
|
11.0
|
14.0
|
10.0
|
|
|
|
| Dimensions
and Capacities of Heating expansion Tank |
|
Model
|
Capacity
Gallons
|
Maximum
Acceptance Volune
|
System
Connection
|
Dimensions(inches)
|
|
Diameter
|
Height
|
Weight(1bs)
|
|
HTX
15
|
2.1
|
1.0
|
1/2"
MNPT
|
8.0
|
12.5
|
5.5
|
|
HTX
30
|
4.5
|
2.5
|
1/2"
MNPT
|
11.0
|
14.0
|
10.0
|
|
HTX
60
|
6.0
|
3.0
|
1/2"
MNPT
|
11.4
|
17.2
|
11.5
|
|
HTX
90
|
15.0
|
6.0
|
3/4"
MNPT
|
16.0
|
20.8
|
28.0
|
|
SXHT
30
|
15.0
|
6.0
|
1"
FNPT
|
16.0
|
21.7
|
32.0
|
|
SXHT
40
|
20.0
|
8.0
|
1"
FNPT
|
16.0
|
28.8
|
39.0
|
|
SXHT
60
|
33.0
|
13.3
|
1"
FNPT
|
16.0
|
42.8
|
57.0
|
|
SXHT
90
|
44.0
|
17.7
|
1
1/4" FNPT
|
21.0
|
36.2
|
72.0
|
|
SXHT
110
|
62.0
|
24.9
|
1
1/4" FNPT
|
21.0
|
47.9
|
112.0
|
|
SXHT
160
|
81.0
|
32.6
|
1
1/4" FNPT
|
21.0
|
62.0
|
123.0
|
|
|
| |
| Quick
Sizing Guide |
|
Boiler
Output
1000's BTUH
|
Finned
Tube
Baseboard(Copper)
|
Type
of Radiator
|
|
Convectors
& Unit Htrs
|
Cast
Iron
|
|
Radiators
|
Baseboard
|
|
25
|
HTX
15
|
HTX
15
|
HTX
15
|
HTX
15
|
|
50
|
HTX
15
|
HTX
30
|
HTX
30
|
HTX
30
|
|
75
|
HTX
30
|
HTX
30
|
HTX
60
|
HTX
60
|
|
100
|
HTX
30
|
HTX
30
|
HTX
60
|
HTX
60
|
|
125
|
HTX
30
|
HTX
30
|
HTX
60
|
HTX
60
|
|
150
|
HTX
30
|
HTX
30
|
HTX
90
|
HTX
90
|
|
175
|
HTX
60
|
HTX
60
|
HTX
90
|
HTX
90
|
|
200
|
HTX
60
|
HTX
60
|
HTX
90
|
HTX
90
|
|
250
|
SXHT
30
|
SXHT
30
|
SXHT
40
|
SXHT
30
|
|
300
|
SXHT
30
|
SXHT
40
|
SXHT
40
|
SXHT
30
|
|
350
|
SXHT
30
|
SXHT
40
|
SXHT
60
|
SXHT
40
|
|
400
|
SXHT
30
|
SXHT
60
|
SXHT
90
|
SXHT
40
|
|
500
|
SXHT
40
|
SXHT
60
|
SXHT
90
|
SXHT
40
|
|
600
|
SXHT
40
|
SXHT
90
|
SXHT
90
|
SXHT
60
|
|
700
|
SXHT
60
|
SXHT
90
|
SXHT
90
|
SXHT
60
|
|
800
|
SXHT
60
|
SXHT
110
|
SXHT
110
|
SXHT
90
|
|
900
|
SXHT
60
|
SXHT
110
|
SXHT
110
|
SXHT
90
|
|
1000
|
SXHT
60
|
SXHT
110
|
SXHT
110
|
SXHT
90
|
|
|
| |
| Caution!!
|
- All heating expansion tanks
are pre-charged at 12PSI,color RAL
- All thermal expansion tanks
are pre-charged at 40PSI, color almond
- Thermal Expansion Tank Maximum
Working Temperature: 80
- Heating Expansion Tank Maximum
Working Temperature: 100
- Maximum Working Pressure:100PSI
- Installation of a pressure-relief
valve is required to protect the system..
- Installation of a backflow
prevention valve may be required to prevent accidental back-flow
to city water systems.
|
|
|
|
|
