Technical Specifications - Solar Energy WILO ST 15/6 Bedienungsanleitung

MANUAL FOR INSTALLATION AND USE
One-line return unit, insulated, DN 20 (return line),
with drain fitting and flow indicator
Item No Item Designation
677.21.75.00 tubra®-RGS

Technical Specifications

Max. operating pressure:
Max. operating temperature (return):
Medium: Water with a maximum
propylene glycol content of 50%
Nominal diameter: DN 20
Connections: Flat sealing, swivel nut G1, 1¼"
Materials
Sealings: EPDM
Casing/fittings: CuZn39Pb3 (2.0401)
Insulation: EPP foam
Thermal conductivity: 0.038W/mK
Fig. 2: Dimension
Pump type
WILO ST 15/6
6 bar
120° C
Fig. 1: Components
Scope of supply
Pos. Description
2 Return ball valve with integrated gravity brake
3 Flat seal
4 Cap ¾"
5 Circulation pump WILO ST 15/ 6
6 Fill/drain fitting
7 Flow indicator 1-13 l/min
11 Membrane expansion vessel
connection flat sealing G ¾", male thread
12 Insulation half shell, back
13 Insulation half shell, front
For maintenance tasks (e.g. replacing the pump)
close the return ball valve and the shut-off in
the drain fitting (Figure 1, pos. 2 and pos. 6)
7
13 2
"
Rp 3/4
11
3
4
5
6
7
12
"
Rp 3/4