DAYLIFF DSS submersible pumps are designed specifically for borehole supply applications. They are of multistage centrifugal impeller design and all parts are made from the standard AISI304 stainless steel with water lubricated rubber bearings. A submersible motor is fitted beneath the pump and suction is effected through a strainer between the pump and motor.
MOTOR
The pump is coupled to a sealed liquid cooled 2-pole asynchronous squirrel-cage motor constructed of stainless steel. Single phase motors should be supplied with purpose designed Dayliff SCM control boxes for operation and protection against overload, dry running and over/under voltage. Three phase motors require a remote DOL starter; A DAYLIFF SCT electronic Pump Controller is recommended for comprehensive pump control including low level, motor overload and irregular power supply protection.
Enclosure Class: IP68
Insulation Class: F
Voltage: 3x415V Speed: 2900 rpm
OPERATING CONDITIONS
Pumped Liquid: Thin, clean, chemically non-aggressive liquids with a maximum sand content of 0.25%
Max Liquid Temperature: +35ºC
Max Water Depth: 200m-4", 300m-6"
Minimum Borehole Diameter: 110mm-4", 200mm-6"
PUMP DATA
| Model |
Motor |
Current (A) |
Istart / I |
DN (") |
Dimensions (mm) |
Weight (Kg) |
| kW |
HP |
∅D |
M |
P |
| DSS 20/7 |
4 |
5.5 |
9.5 |
7 |
3 |
140 |
706 |
655 |
35.9 |
| DSS 20/9 |
5.5 |
7.5 |
12.2 |
806 |
765 |
60.5 |
| DSS 20/12 |
7.5 |
10 |
14.6 |
731 |
942 |
71.1 |
| DSS 20/16 |
9.2 |
12.5 |
22.3 |
796 |
1162 |
82.2 |
| DSS 20/20 |
11 |
15 |
25 |
861 |
1382 |
92.5 |
| DSS 20/26 |
15 |
20 |
33 |
991 |
1712 |
114.9 |
| DSS 20/31 |
18.5 |
25 |
44 |
145 |
1058 |
1987 |
104.3 |
| DSS 20/36 |
22 |
30 |
54 |
1128 |
2262 |
121.2 |
| DSS 20/41 |
26 |
35 |
58 |
1228 |
2537 |
146.1 |
| DSS 20/46 |
30 |
40 |
62 |
1318 |
2812 |
161.4 |
| DSS 20/54 |
37 |
50 |
82 |
1418 |
3252 |
181.1 |
