Page. 28 of 73
Training manual :PIGMA Gal Evo
4 HYDRAULIC BLOCK
LEGEND
1
Expansion vessel
8
Retuyrn heating sensor
2
Delivery heating sensor
9
Primary heat exchanger
3
Sanitary plate heat exchanger
10
No back-flow valve
4
3 bar safety valve and by-pass
11
Filling tap
5
3 way valve
12
Deareator
6
Sanitary flow meter
13
Minimum pressure switch
7
Pump
14
Drain tap