8
WILDEN PUMP & ENGINEERING, LLC
WIL-10220-E-02
SECTION 5G
PERFORMANCE CURVES
A4 PLASTIC ACCU-FLO™ PTFE-FITTED
Height .................................. 528 mm (20.8")
Width ................................... 394 mm (15.5")
Depth .................................. 284 mm (11.2")
Est. Ship Weight ........Polypropylene 16 kg (36 lbs)
PVDF 21 kg (47 lbs)
PTFE PFA 23 kg (50 lbs)
Air Inlet ....................................10 mm (3/8")
Inlet ..................................... 38 mm (1-1/2")
Outlet .................................. 38 mm (1-1/2")
Suction Lift ........................... 2.13 m Dry (7')
8.84 m Wet (29')
Displacement per
Stroke ........................... 0.42 l (0.11 gal.)
1
Max. Flow Rate ................. 144 lpm (38 gpm)
Max. Size Solids ...................4.8 mm (3/16")
1
Displacement per stroke was calculated at 4.8 bar
(70 psig) air inlet pressure against a 2 bar (30 psig)
head pressure.
Example:
To pump 38 lpm (10 gpm) against
a discharge pressure head of 2.7 bar (40
psig) requires 4.1 bar (60 psig), 17 Nm
3
/h (10
scfm) air consumption, and a pump speed of
115 strokes/minute. (See dot on chart.)
Caution: Do not exceed 8.6 bar (125 psig) air
supply pressure.
Flow curves are for “optimal speed” conditions only. The “optimal speed” is that speed which
provides the maximum flow under a particular air and fluid pressure condition. The optimal speed
varies for different fluid and air pressures. Recommendations for optimal speed can be found on
the right side of the flow curve.
Flow rates indicated on chart were determined by pumping water.
For optimum life and performance, pumps should be specified so that daily operation parameters
will fall in the center of the pump performance curve.
SECTION 5H
70/30 OPERATING CONDITION
A4 PLASTIC ACCU-FLO™ PTFE-FITTED
This curve demonstrates the flow
created when the stroke rate is modi-
fied under a static air and fluid pres-
sure condition. This curve can be
applied to different pressure conditions
to estimate the change in flow due to
stroke rate.
