5
WILDEN PUMP & ENGINEERING CO.
SECTION 5A
PERFORMANCE CURVES
MODEL T8 PLASTIC RUBBER-FITTED
Height ..........................770.0 mm (30
5
⁄
16
")
Width ...........................491.3 mm (19
11
⁄
32
")
Depth...................................254 mm (10")
Ship Weight ....Polypropylene 35.4 kg. (77 lbs)
PVDF 44.6 kg (97 lbs.)
Air Inlet..................................1.91 cm (
3
⁄
4
")
Inlet........................................5.08 cm (2")
Outlet ......................................5.08 cm(2")
Suction Lift .....................15.79 m Dry (9')
9.45 m Wet (31')
Displacement per
Stroke........................ 2.84 l (0.75gal.)
1
Max. Flow Rate......579.17 lpm (153 gpm)
Max. Size Solids...................6.35 mm (
1
⁄
4
")
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 303 lpm (80 gpm)
against a discharge pressure head of 2 Bar
(30 psig) requires 4.1 Bar (60 psig) and 80
Nm
3
/h (47 scfm) air consumption. (See
dot on chart.)
Caution: Do not exceed 8.6 Bar1 (25 psig) air
supply pressure.
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.
AIR CONSUMPTION
(SCFM)
[Nm
3
/h]
20
40
60
80
100
120
140
160
Water Discharge Flowrates
[76]
[151]
[227]
[303]
[378]
[454]
[530]
[606]
PSIG
20
40
60
80
100
120
0
25
50
75
100
125
150
175
200
225
250
275
300
BAR
0
1
2
3
4
5
6
7
8
GPM
[
l
/min]
Discharge Pressure
(20)
[34]
(40)
[68]
(60)
[102]
(80)
[136]
(100)
[170]
FEET
SECTION 5B
PERFORMANCE CURVES
MODEL T8 PLASTIC ULTRA-FLEX™-FITTED
Height ...........................770.0 mm (30
5
⁄
16
")
Width ...........................491.3 mm (19
11
⁄
32
")
Depth...................................254 mm (10")
Ship Weight ....Polypropylene 35.4 kg. (77 lbs)
PVDF 44.6 kg (97 lbs.)
Air Inlet..................................1.91 cm (
3
⁄
4
")
Inlet........................................5.08 cm (2")
Outlet .....................................5.08 cm (2")
Suction Lift .....................3.35 m Dry (11')
9.14 m Wet (30')
Displacement per
Stroke ...................... 1.74 l (0.46 gal.)
1
Max. Flow Rate........556.5 lpm (147 gpm)
Max. Size Solids...................6.35 mm (
1
⁄
4
")
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 303 lpm (80 gpm)
against a discharge pressure head of 2 Bar
(30 psig) requires 4.1 Bar (60 psig) and 82
Nm
3
/h (48 scfm) air consumption. (See
dot on chart.)
Caution: Do not exceed 8.6 Bar (125 psig) air
supply pressure.
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.
AIR CONSUMPTION
(SCFM)
[Nm
3
/h]
20
40
60
80
100
120
140
160
20
40
60
80
100
120
FEET
0
25
50
75
100
125
150
175
200
225
250
275
300
BAR
0
1
2
3
4
5
6
7
8
(20)
[34]
[68]
(60)
[102]
(80)
[136]
(100)
[170]
GPM
[
l
/min]
Water Discharge Flowrates
[76]
[151]
[227]
[303]
[378]
[454]
[530]
Discharge Pressure
[606]
PSIG
(40)
