PEDROLLO MK Multi Stage Centrifugal Pumps User Guide
- July 20, 2024
- pedrollo
Table of Contents
MK Multi-stage centrifugal pumps
Clean water
Domestic use
Civil use
Agricultural use
PERFORMANCE RANGE
- Flow rate up to 180 l/min (10.8 m3/h)
- Head up to 114 m
INSTALLATION AND USE
Compact and cost-effective vertical multistage centrifugal pumps suitable for water supply, clean liquids, and pressurization in domestic, civil, and agricultural systems, as well as irrigation.
ELECTRIC MOTOR
The three-phase pumps are equipped with newly developed electric motors
designed to work with inverters, which guarantee stable and quiet operation.
Efficiency class IE3 for three-phase motors and IE2 for single-phase
motors, with class F insulation and IPX4 protection.
APPLICATION LIMITS
- Manometric suction head up to 7 m
- Liquid temperature between -10 °C and +60 °C
- Ambient temperature up to +40 °C
- Maximum working pressure 11 bar
AVAILABLE UPON REQUEST
※ Different voltage requirements 60 Hz frequency
CURVES AND PERFORMANCE DATA - HS=0 m
50 Hz
TYPE| POWER (P2)| 1~| 3~| Q
m³/h
l/min
| 0| 0.6| 1.2| 2.4| 3.6| 4.8| 6.0| 7.2| 8.4| 9.6| 10.8
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
Single-ph.| Three-ph.| kW| HP| 0| 10| 20|
40| 60| 80| 100| 120| 140| 160| 180
MKm 3/3| MK 3/3| 0.75| 1| IE2| IE3| H metres| 52.5|
51.5| 50| 45| 38.5| 29| | | | |
MKm 3/5| MK 3/5| 1.1| 1.5| 87| 85| 83| 75| 64| 48| | | | |
MKm 3/6| MK 3/6| 1.5| 2| 105| 103| 100| 90| 77| 58| | | | |
MKm 5/4| MK 5/4| 0.75| 1| 57| –| 54| 50| 45| 37.5| 28.5| 17| | |
MKm 5/5| MK 5/5| 1.1| 1.5| 71| –| 67.5| 62.5| 56| 47| 35.5| 21.5| |
|
MKm 5/7| MK 5/7| 1.5| 2| 99| –| 95| 88| 78| 66| 50| 30| | |
MKm 5/8| MK 5/8| 2.2| 3| 114| –| 108| 100| 90| 75| 57| 34| | |
MKm 8/4| MK 8/4| 1.1| 1.5| 56| –| –| 53.5| 51| 47.5| 43| 37.5|
30.5| 22.1| 12
MKm 8/5| MK 8/5| 1.5| 2| 70| –| –| 67| 64| 59.5| 54| 47| 38| 27.5|
15.5
MKm 8/6| MK 8/6| 2.2| 3| 84| –| –| 80| 77| 72| 64.5| 56| 45.5| 33|
18.5
Q = Flow rate H = Total manometric head HS = Suction height
Performance curves comply with EN ISO 9906 Grade 3B tolerance limits.
MK Technical data
ABSORPTION
| TYPE | VOLTAGE |
|---|---|
| Single-ph. | 230 V |
| MKm 3/3 | 5.7 A |
| MKm 3/5 | 7.8 A |
| MKm 3/6 | 9.5 A |
| MKm 5/4 | 5.7 A |
| MKm 5/5 | 7.1 A |
| MKm 5/7 | 9.3 A |
| MKm 5/8 | 10.0 A |
| MKm 8/4 | 7.8 A |
| MKm 8/5 | 9.7 A |
| MKm 8/6 | 11.1 A |
| TYPE | VOLTAGE |
| --- | --- |
| Three-ph. | 230 V – |
| MK 3/3 | 4.2 A |
| MK 3/5 | 5.2 A |
| MK 3/6 | 6.1 A |
| MK 5/4 | 4.3 A |
| MK 5/5 | 4.7 A |
| MK 5/7 | 6.1 A |
| MK 5/8 | 7.4 A |
| MK 8/4 | 5.2 A |
| MK 8/5 | 6.1 A |
| MK 8/6 | 7.8 A |
DIMENSIONS AND WEIGHT
| TYPE | PORTS | DIMENSIONS mm | kg |
|---|---|---|---|
| Single-ph. | Three-ph. | DN1 | DN2 |
| b | c | s1 | s2 |
| MKm 3/3 | MK 3/3 | 1¼ “ | 1″ |
| 146 | 185 | 127 | 220 |
| MKm 3/5 | MK 3/5 | 501 | 186.5 |
| MKm 3/6 | MK 3/6 | 528 | 213.5 |
| MKm 5/4 | MK 5/4 | 474 | 159.5 |
| MKm 5/5 | MK 5/5 | 501 | 186.5 |
| MKm 5/7 | MK 5/7 | 555 | 240.5 |
| MKm 5/8 | MK 5/8 | 602 | 267.5 |
| MKm 8/4 | MK 8/4 | 474 | 159.5 |
| MKm 8/5 | MK 8/5 | 501 | 186.5 |
| MKm 8/6 | MK 8/6 | 548 | 213.5 |
MATERIALS AND COMPONENTS
1 Suction body
Cast iron with cataphoresis treatment, provided with ISO 228/1 threaded
suction port
2 External sleeve
Stainless steel AISI 304
3 Delivery port
Cast iron with cataphoresis treatment, provided with ISO 228/1 threaded
delivery port
4 Impellers and diffusers
Noryl™
5 Diaphragms.
AISI 304 stainless steel complete with wear rings
6 Mechanical seal
Seal Shaft Materials
FN-18 Ø 18 mm Graphite / Ceramic / NBR
7 Motor shaft
Stainless steel AISI 431
8 Electric motor
MKm: single-phase 230 V – 50 Hz with capacitor and winding integrated
thermal motor protection
MK: three-phase 230/400 V – 50 Hz
※ Pumps are equipped with high-efficiency motors (IEC 60034-30-1)
class IE2 for single-phase models
class IE3 for three-phase models
Continuous running duty S1
MK | 50 Hz
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