Roberts Gorden Combat Cabinet Heaters POP-ECA/PGP-ECA 015 to 0100 - Manual (Page 24)

COMBAT ® C ABINET H EATERS I NSTALLATION , C OMMISSIONING , O PERATION AND S ERVICE M ANUAL
18
Figure 12: Pressurised System Installation - Duplex System
Check
Valve
Check
Valve
Relief Valve
Pressure Gauge
Check
Valve
Stop
Valve
Stop
Valve Stop
Valve Burner
No. 1
Pump No. 2
Pump
Duplex Pump Set
Burner
Pressure
Reducing
Valve
Pressure
Reducing
Valve
Stop
Valve
Storage Tank
Below Ground
For
Fuel Tanks
above
Pump Set
(The system shown has one pump for run and the
other for standby. The valves allow the standby pump
to be removed for maintenance while the system is still running).