Hale Q Series Muscle - Manual (Page 85)

83 MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
Preventive Maintenance 
The minimum flow rate should be continuously discharged until 80% of the tank is
discharged.
9. The pump should not experience mechanical problems, power loss, or overheat
during the test.
Performance Testing Equipment and Materials
Pumpers should be tested from draft at not over a 10’ (3 m) lift with 20’ (6 m) of suc-
tion hose. Pumpers rated at 1,500 GPM (6,000 LPM) and above often require two
separate 20-foot (6-meter) lengths of suction hose and a lower lift height.
Use smooth bore test nozzles of accurate size with the Pitot gauge. The volume
pumped is then determined by reference to discharge tables for smooth nozzles. Pref-
erably, nozzles will be used on a Siamese deluge gun for greatest accuracy. A stream
straightener, just upstream of the nozzle is advisable.
Refer to local procedures for pump testing procedures and practices as well as appli-
cable nfpa standards.
For Pitot Gauge accuracy, the nozzle pressures should be between 30 and 85 PSIG
(207 and 586 kPa). Also see Appendix F: “Nozzle Size vs. Pressure” on page 191.
The amount of discharge hose required for the service tests is dependent on the flow
requirements and capacity test point. Provide adequate hose to discharge the rated
capacity with a flow velocity less that 35 ft./sec. Also see Appendix E: “Hose Friction
Loss” on page 189.
Since NFPA standards specify both GPM and pressure, it is usually necessary to
restrict the flow somewhat to build up the pump pressure. In normal pumping, this
restriction would be caused by the friction loss in the lines. It is common practice to
gate the discharge valves as required to maintain pressure.
Note:
 For 750 GPM (3,000 LPM) test, two 2-1/2” (64 mm) lines should be laid from
the pumper to the nozzle
 For 1,000 GPM (4,000 LPM) test, three lines are required
 For the 1,250 GPM (5,000 LPM) and 1,500 GPM (6,000 LPM) tests, four or more
lines are required between the pumper and the nozzle.
 For the 1,750 GPM (7,000 LPM), 2,000 GPM (8,000 LPM), and 2,250 GPM
tests up to six hose lines into two separate nozzles should be used. Also see
Appendix F: “Nozzle Size vs. Pressure” on page 191.
Because deluge guns are not always available, other hose layouts may be used, such as
one, 2-1/2” (64 mm) line to a 1-3/8” (35 mm) nozzle for 500 GPM (1,892 LPM). Generally, the