Hale Q Series Muscle - Manual (Page 49)

49 MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
Accessories / Options 
eliminates the possibility of the valve remaining in an open position due to contamina-
tion.
The amber indicator on the PMD control illuminates when the QG relief valve is open.
The indicator flashes when both the QG and PG30 valves are open.
For sample TPM system overviews, see the following:
 Figure 3-15: “Typical TPM Relief Valve System, Condition 1” on page 50
All Relief Valve CLOSED, Pump operating from Draft
 Figure 3-16: “Typical TPM Relief Valve System, Condition 2” on page 51
QG Relief Valve OPEN, Pump operating from Draft
 Figure 3-17: “Typical TPM Relief Valve System, Condition 3” on page 52
QG and PG30 Relief Valve OPEN, Pump operating with Positive Suction Pressure
(Hydrant)