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SECTION II: SOLAR PUMP STATION
SECTION II: SOLAR PUMP STATION
Maximum operating pressure:
6 bar
Maximum operating temperature (return):
120°C
Maximum operating temperature (flow):
140°C
Medium:
Water with a maximum propylene glycol content of 50%
Nominal diameter:
DN 20
Connections:
Flat sealing, swivel nut G1, 1¼"
Sealings:
EPDM
Casing:
GK-CuZn37Pb (2.0340.02)
Fittings:
CuZn39Pb3 (2.0401)
Insulation:
EPP foam
Thermal conductivity:
0.038 W/mK
3. Technical Specifications
4. Function of the Gravity Brakes (1/2)
Opening pressure of the gravity brakes: 20 mbar
each.
The gravity brakes are integrated in the flow and
return ball valves. They are operated by turning the
handles of the ball valves.
To prevent gravity circulation, the valve discs should
not be vented. The gravity brakes are in operating
position (closed). The slots in the handles are in a
vertical position (Figure 3a).
To fill and completely empty the solar system, open
the gravity brakes by turning the handles to the
right. The slots in the handles are positioned at an
angle of 45° (Figure 3b).
Turn the handles to the right by a total of 90°.
The slots in the handles are in a horizontal position.
The ball valves are closed (Figure 3c).
Figure 3a: Ball Valve open.
Figure 3b: Gravity Brakes open.
Figure 3c: Ball Valve closed.
Summary of Contents for TFF 200
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