Unigas C70N US Manual Of Installation - Use - Maintenance page 21

Siemens VGD Pressure taps
9
1
6
3
1
10
5
6
7
8
9
PART III: INSTALLATION
11
1 9
Strainer
(G 1/4") (G 1/8")
7
2
10
2
3 4 5 2
(G 1/4") (G 3/4") (G 1/8") (G 1/4") (G 1/8")
V 1 V 2
6 8 10
4
21
11
Legend
pi Inlet pressure
pm Pressure between valves
po Outlet pressure
3