4SR8 - 4" Multistage Borehole Pump Range General Product
Description
PERFORMANCE RANGE
Flow rate up to 200 L/min (12 m³/hr)
Dynamic head up to 280 m
This new series of submersible pumps is fitted with a patented
anti-seize system (ensuring pump operation, even after being left
idle for long periods), and an oversized motor in a biodegradable,
non-toxic, oil bath.
OPERATING LIMITS
Maximum fluid temperature + 30°C
Maximum sand content: 150g/m3
Starts: max. 20/hr
PEDROLLO borehole pumps feature a patented design giving them
a high tolerance of entrained sand.
PUMP INSTALLATION AND APPLICATIONS
These pumps are suitable for pumping water with a sand content
of up to 150g/m3. Their high performance and dependability make
them suitable for use in domestic, civil and industrial fields,
for the automatic distribution of water, for irrigation, washing
and pressure-boosting systems, and for fire-fighting purposes etc.
4SR pumps can be installed in wells with a diameter of no less
than 4"(100mm). The pump is lowered into the well by means of
the delivery pipe until it is completely immersed. (min 50cm) and
at least one metre from the bottom of the well. Care should be taken
to ensure that the pump remains submerged as pump operation may
cause the level of the water in the well to fall. The pump can be
installed either vertically or horizontally. When installed vertically
it is advisable to secure the pump by using a stainless steel or
nylon cable connected to the special holes provided on the discharge
head.
PERFORMANCE
4SR pumps combine the advantages of a submersible pump with
the performance of a centrifugal pump.
As submersible pumps, they assure reliable operation even with considerable
water depth.
As multistage pumps they assure high flows, high heads, stable performance
curves.
Curve tolerance according to ISO 2548
STRUCTURAL CHARACTERISTICS
- UNI ISO 228/1 gas thread DISCHARGE HEAD in brass
(up to 2.2kW discharge head, check valve and motor bracket in
AISI 304 stainless steel).
- Techno-polymer, high resistance CHECK VALVE enables
the weight of the column of water to be dispersed without stress
to the impellers and diffusers, thus ensuring long pump life.
- Lexan General Electric technopolymer IMPELLERS.
- Noryl GFN2 technopolymer DIFFUSERS
- AISI 304 stainless steel BOWL.
- AISI 304 stainless steel EXTERNAL SLEEVE.
- AISI 304 stainless steel PUMP SHAFT
- Brass MOTOR BRACKET built to NEMA dimensional
standards.
- AISI 316L sintered stainless steel TRANSMISSION COUPLING
- AISI 304 stainless steel BOLTS
- AISI 304 stainless steel FILTER
- AISI 304 stainless steel CABLE GUARD
- 4" SUBMERSIBLE MOTORS: water filled Franklin
Electric motor or re-windable oil bath Pedrollo motor.
- PROTECTION IP 58 for Franklin Electric motor and IP 68
for Pedrollo motor
- FE4DM/T submersible SUPPLY CABLE. Supplied standard with
1.5m of cable.
- CONSTRUCTION AND SAFETY STANDARDS in compliance with
EN 60 335 -1, (IEC 335-1, CEI 61-150) EN 60034-1 (IEC 34-1, CEI
2-3).
PERFORMANCE CURVE
PERFORMANCE DATA
| PERFORMANCE DATA AT=2900 l/min |
| PUMP MODEL |
POWER |
Q
m³/h |
0 |
2.4 |
3.6 |
4.8 |
6 |
7.2 |
8.4 |
9.6 |
10.8 |
12 |
| Single Phase |
Three Phase |
KW |
HP |
l/min |
0 |
40 |
60 |
80 |
10 |
120 |
140 |
160 |
180 |
200 |
| 4SR8m/4 |
4SR8/4 |
0.75 |
1 |
Hm |
27 |
26 |
25 |
24 |
23 |
22 |
20 |
17 |
13 |
10 |
| 4SR8m/7 |
4SR8/7 |
1.1 |
1.5 |
47 |
46 |
45 |
43 |
41 |
38 |
34 |
29 |
23 |
16 |
| 4SR8m/9 |
4SR8/9 |
1.5 |
2 |
60 |
58 |
57 |
55 |
52 |
48 |
43 |
37 |
30 |
21 |
| 4SR8m/13 |
4SR8/13 |
2.2 |
3 |
87 |
85 |
83 |
80 |
76 |
70 |
63 |
54 |
43 |
30 |
| _____ |
4SR8/17 |
3 |
4 |
112 |
110 |
108 |
104 |
99 |
92 |
82 |
70 |
56 |
40 |
| _____ |
4SR8/23 |
4 |
5.5 |
153 |
150 |
146 |
141 |
134 |
124 |
111 |
95 |
76 |
53 |
| _____ |
4SR8/31 |
5.5 |
7.5 |
205 |
200 |
196 |
190 |
181 |
167 |
149 |
128 |
103 |
72 |
| _____ |
4SR8/42 |
735 |
10 |
280 |
272 |
266 |
257 |
244 |
225 |
202 |
175 |
140 |
98 |
| H = TOTAL DYNAMIC HEAD IN METRES |
| Q = FLOW RATE |
PRODUCT DIMENSIONS
 |
| Pump Model |
DN |
Dimensions mm |
| L |
L1 |
| Single Phase |
Three Phase |
| 4SR8/4 |
2" |
581 |
553 |
282 |
| 4SR8/6 |
2" |
699 |
671 |
372 |
| 4SR8/9 |
2" |
788 |
759 |
432 |
| 4SR8/13 |
2" |
1038 |
933 |
577 |
| 4SR8/17 |
2" |
- |
1119 |
696 |
| 4SR8/23 |
2" |
- |
1484 |
901 |
| 4SR8/31 |
2" |
- |
1863 |
1166 |
| 4SR8/42 |
2" |
- |
2294 |
1520 |
|
| |
|
|
|
