28
Performance data
28.1
720R, 720RE, 720R/RX and 720RE/REX performance data
Pumping conditions
All performance figures in this operating instruction have been recorded against peak pipeline
pressures.
This pump is rated to 2 bar (30psi) peak pressure when fitted with a 720R, 720RE, 720R/RX or 720RE/REX
pumphead using high-pressure tubing. However, it will generate in excess of 4 bar (58psi) peak pressure
if the pipeline is restricted. Where it is important that 2 bar (30psi) is not exceeded, pressure relief valves
should be installed in the pipeline.
At discharge pressures exceeding 1 bar (15psi) the flow performance may be de-rated. This is particularly
the case with twin pumpheads. Please refer to the performance tables below.
Note
: Flow rates quoted have been rounded for simplicity, but are accurate to within 5% - well within the
normal tubing tolerance variation of flow rate. They should therefore be taken as a guide. Real flow rates
in any application must be determined empirically.
720R and 720RE flow rates
730 cased pumps’ performance limits
Single
pumphead
(720R, 720RE)
0.25 bar (3.6psi)
0.5 bar (8psi)
1 bar (15psi)
1.5 bar (22psi)
2 bar (30psi)
Max
speed
(rpm)*
Max flow
L/hr
(USGPH)
Max
speed
(rpm)*
Max
flow
Max
speed
(rpm)*
Max
flow
Max
speed
(rpm)*
Max
flow
Max
speed
(rpm)*
Max
flow
9.6 mm (0.4”)
360
420 (111)
360
420
(111)
360
420
(111) 360
420
(111)
360
420
(111)
12.7 mm (0.5”)
360
780 (206)
360
780
(206)
360
780
(206)
360
780
(206)
360
780
(206)
15.9 mm (0.6”)
360
1100 (291)
360
1100
(291)
360
1100
(291)
360
1100
(291)
300
900
(238)
19.0 mm (0.7”)
360
1500 (396)
360
1500
(396)
360
1500
(396)
300
1300
(343)
250
1000
(264)
25.4 mm (1.0”)
360
2000 (528)
360
2000
(528)
360
2000
(528)
200
1100
(291)
*The maximum speed is reduced at increased discharge pressures to ensure safe running of the pump
122
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