MOL 3400-4100 Issue 2 10/08
Page 10
BURNER OIL SYSTEM
Pumped Systems – All Modulating Burners
All interconnecting pipework to be minimum 19mm and pressure rated for 42 kg/cm
2
(600 psi).
All burners require a pump inlet pressure of 0.35 to 0.70 kg/cm
2
(5 to 10 psi).
If a shut-off valve is fitted in the inlet line, a pressure relief valve set at 0.7 kg/cm
2
(10 psi)
above the
supply pressure
must be fitted to prevent damage should the valve be left shut during burner.