PEDROLLO GPW Variable Speed Pumping Units Installation Guide
- July 18, 2024
- pedrollo
Table of Contents
PEDROLLO GPW Variable Speed Pumping Units Installation Guide
INSTALLATION AND USE
GPW is a pre-assembled system designed to connect to water mains or a primary collection tanks. It provides water supply and pressurization and is ideal for residential, commercial, and public buildings. It’s also suitable for hotels, park irrigation, as well as industrial water handling and treatment.
GPW is compatible with clean water and aqueous solutions that do not chemically or mechanically harm the materials used and are free from abrasive or fibrous substances.
PRODUCT DESCRIPTION
GPW is a variable speed pressurization system comprising two or three
pumps assembled into one unit. It is electronically controlled by two or
three STEADYPRES devices connected in parallel. These devices
automatically adjust the pump operation based on the system’s varying water
demands, ensuring constant pressure.
When water withdrawal reduces the system pressure, thefirst pump activates to
meet the required flow rate, maintaining pressure at the set value. As the
maximum rotation speed is reached, additional pumps start up in sequence to
fulfill the system’s water demand.
COMPONENTS
Pumps connected in parallel via suction and discharge manifolds. Each
pump is equipped with a ball valve on the suction side and a ball valve and
non-return valve (integrated in STEADYPRES) on the discharge side.
BASE made of metal profile and equipped with adjustable vibration-damping
feet.
STEADYPRES ELECTRONIC DEVICES installed directly on the delivery pipe of each
individual pump. They continuously regulate the rotation speed, ensuring a
constant pressure even as user demands fluctuate. Each inverter can manage the
alternating operation of pumps as needed.
GPW is designed to protect the system from:
Dry running overvoltage and under voltage
ELECTRICAL PANEL equipped with magnetothermal motor protection circuit
breakers for three-phase versions, and magnetothermal circuit breakers for
single phase versions.
GP2W – 5CR
Pressurization units comprising two multistage centrifugal pumps equipped with
STEADYPRES inverters capable of maintaining a constant pressure in the system.
The GP2W – 5CR are suitable for domestic and residential water supply, garden
irrigation, and general clean water handling.
TECHNICAL DATA
- Liquid temperature up to +40 °C
- Ambient temperature between 0 °C and +40 °C
- Max. pressure in the pump body 7 bar
- Continuous running duty **S1
**
GP2W – MK
Pressurization units comprising three vertical multistage pumps equipped with
STEADYPRES inverters, capable of maintaining constant pressure in the system.
GP3W – MK are suitable for residential, commercial, and public water supply,
largescale irrigation, and handling clean water in general.
TECHNICAL DATA
- Liquid temperature up to +40 °C
- Ambient temperature between 0 °C and +40 °C
- Max. pressure in pump body 10 bar
- Continuous running duty **S1
**
GP3W – MK
Pressurization units comprising three vertical multistage pumps equipped with
STEADYPRES inverters capable of maintaining constant pressure in the system.
GP3W – MK are suitable for residential, commercial, and public water supply,
largescale irrigation, and handling clean water in general.
TECHNICAL DATA
- Liquid temperature up to +40 °C
- Ambient temperature between 0 °C and +40 °C
- Max. pressure in pump body 10 bar
- Continuous running duty **S1
**
GP2W – 5CR
TYPE| POWER P2| Q| m³/h| 0| 1.2| 2.4| 3.6| 4.8| 6.0| 7.2| 8.4|
9.6| 10.8| 12.0| 13.2| 14.4| 15.6
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
Single-phase| Three-phase| kW| HP| l/min| 0|
20| 40| 60| 80| 100| 120| 140| 160|
180| 200| 220| 240| 260
GP2Wm – 5CR 80| GP2W – 5CR 80| 2×0.75| 2×1| H metres| 67| 64|
59| 53| 45.5| 37.5| 29.5| 20.5| 12| | | | |
GP2Wm – 5CR 100| GP2W – 5CR 100| 2×0.9| 2×1.25| 63| 61.5| 59.5| 57|
53.5| 50.5| 46.5| 42.5| 38| 33| 28| 22| 15| 8
The data shown in the diagram and tables indicate performance with 2 pumps in operation
PERFORMANCE CURVES
ABSORPTION
| TYPES ingle -phase | VOLTAGE 230 V |
|---|---|
| GP2Wm – 5CR 80 | 2 x 9.0 A |
| GP2Wm – 5CR 100 | 2 x 10.0 A |
| TYPE Three -phase | VOLTAGE 400 V |
| --- | --- |
| GP2W – 5CR 80 | 2 x 3.2 A |
| GP2W – 5CR 100 | 2 x 3.2 A |
DIMENSIONS
| TIPO | BOCCHE | DIMENSIONS mm | kg |
|---|---|---|---|
| Monophasic | Triage | DN1 | DN2 |
| 1~ | 3~ | 1~ | 3~ |
| GP2Wm – 5CR 80 | GP2W – 5CR 80 | 1½” | **1½”** |
| **** 570 | **** 273 | **** 420 | **** 500 |
| **** 712 | **** 205 | **** 624 | **** 582 |
| GP2Wm – 5CR 100 | GP2W – 5CR 100 | 2″ | **** 687 |
| **** 65 | **** 68 |
GP2W – MK
TYPE| POWER P2| Q| m³/h| 0| 1.2| 2.4| 4.8| 7.2| 9.6| 12.0|
14.7| 16.8| 19.2| 21.6
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
Single-phase| Three-phase| kW| HP| l/min| 0|
20| 40| 80| 120| 160| 200| 240| 280|
320| 360
GP2Wm – MK 3/3| GP2W – MK 3/3| 2×0.75| 2×1| H meters|
52.5| 51.5| 50| 45| 38.5| 29| | | | |
GP2Wm – MK 3/5| GP2W – MK 3/5| 2×1.1| 2×1.5| 87| 85| 83|
75| 64| 48| | | | |
GP2Wm – MK 3/6| GP2W – MK 3/6| 2×1.5| 2×2| 100| 100| 100|
90| 77| 58| | | | |
GP2Wm – MK 5/4| GP2W – MK 5/4| 2×0.75| 2×1| 57| –|
54| 50| 45| 37.5| 28.5| 17| | |
GP2Wm – MK 5/5| GP2W – MK 5/5| 2×1.1| 2×1.5| 71| –| 67.5|
62.5| 56| 47| 35.5| 21.5| | |
GP2Wm – MK 5/7| GP2W – MK 5/7| 2×1.5| 2×2| 99| –| 95| 88| 78| 66|
50| 30| | |
GP2Wm – MK 5/8| GP2W – MK 5/8| 2×2.2| 2×3| 100| –| 100| 100|
90| 75| 57| 34| | |
GP2Wm – MK 8/4| GP2W – MK 8/4| 2×1.1| 2×1.5| 56| –| –|
53.5| 51| 47.5| 43| 37.5| 30.5| 22| 12
GP2Wm – MK 8/5| GP2W – MK 8/5| 2×1.5| 2×2| 70| –| –| 67| 64|
59.5| 54| 47| 38| 27.5| 15.5
GP2Wm – MK 8/6| GP2W – MK 8/6| 2×2.2| 2×3| 84| –| –| 80| 77|
72| 64.5| 56| 45.5| 33| 18.5
PERFORMANCE CURVES
ABSORPTION
| TYPE Single-phase | VOLTAGE 230 V |
|---|---|
| GP2Wm – MK 3/3 | 2 x 9.0 A |
| GP2Wm – MK 3/5 | 2 x 12.5 A |
| GP2Wm – MK 3/6 | 2 x 14.0 A |
| GP2Wm – MK 5/4 | 2 x 9.0 A |
| GP2Wm – MK 5/5 | 2 x 11.0 A |
| GP2Wm – MK 5/7 | 2 x 13.5 A |
| GP2Wm – MK 5/8 | 2 x 16.0 A |
| GP2Wm – MK 8/4 | 2 x 12.5 A |
| GP2Wm – MK 8/5 | 2 x 14.0 A |
| GP2Wm – MK 8/6 | 2 x 18.0 A |
| TYPE Three-phase | VOLTAGE 400 V |
| --- | --- |
| GP2W – MK 3/3 | 2 x 3.3 A |
| GP2W – MK 3/5 | 2 x 4.2 A |
| GP2W – MK 3/6 | 2 x 5.0 A |
| GP2W – MK 5/4 | 2 x 3.3 A |
| GP2W – MK 5/5 | 2 x 4.0 A |
| GP2W – MK 5/7 | 2 x 5.0 A |
| GP2W – MK 5/8 | 2 x 6.0 A |
| GP2W – MK 8/4 | 2 x 4.2 A |
| GP2W – MK 8/5 | 2 x 5.0 A |
| GP2W – MK 8/6 | 2 x 6.5 A |
DIMENSIONS
| TYPE | PORTS | DIMENSIONS mm | kg |
|---|---|---|---|
| Single-phase | Three-phase | DN1 | DN2 |
| 1~ | 3~ | ||
| GP2Wm – MK 3/3 | GP2W – MK 3/3 | **2″** | |
| **1½”** | **** 447 | ||
| **** 510 | **** 107 | ||
| **** 284 | **** 500 | ||
| **** 420 | 965 | **** 91 | 842 |
79.0
GP2Wm – MK 3/5| GP2W – MK 3/5| 1019| 896| 84.0| 84.0
GP2Wm – MK 3/6| GP2W – MK 3/6| 1046| 923| 88.0| 87.0
GP2Wm – MK 5/4| GP2W – MK 5/4| 992| 869| 80.0| 80.0
GP2Wm – MK 5/5| GP2W – MK 5/5| 1019| 896| 83.0| 83.0
GP2Wm – MK 5/7| GP2W – MK 5/7| 1073| 950| 88.0| 88.0
GP2Wm – MK 5/8| GP2W – MK 5/8| 1100| 977| 89.0| 88.0
GP2Wm – MK 8/4| GP2W – MK 8/4| **2½”| ****2″|
** 115| **** 435| 992| 869| 86.0| 86.0
GP2Wm – MK 8/5| GP2W – MK 8/5| 1019| 896| 87.0| 86.0
GP2Wm – MK 8/6| GP2W – MK 8/6| 1046| 923| 93.0| 92.0
GP3W – MK
TYPE| POWER P2| Q| m³/h| 0| 1.8| 3.6| 7.2| 10.8| 14.5| 18.1|
21.7| 25.3| 28.9| 32.5
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
Single-phase| Three-phase| kW| HP| l/min| 0|
30| 60| 120| 180| 240| 300| 360| 420|
480| 540
GP3Wm – MK 3/3| GP3W – MK 3/3| 3×0.75| 3×1| H meters|
52.5| 51.5| 50| 45| 38.5| 29| | | | |
GP3Wm – MK 3/5| GP3W – MK 3/5| 3×1.1| 3×1.5| 87| 85|
83| 75| 64| 48| | | | |
GP3Wm – MK 3/6| GP3W – MK 3/6| 3×1.5| 3×2| 100| 100|
100| 90| 77| 58| | | | |
GP3Wm – MK 5/4| GP3W – MK 5/4| 3×0.75| 3×1| 57| –|
54| 50| 45| 37.5| 28.5| 17| | |
GP3Wm – MK 5/5| GP3W – MK 5/5| 3×1.1| 3×1.5| 71| –|
67.5| 62.5| 56| 47| 35.5| 21.5| | |
GP3Wm – MK 5/7| GP3W – MK 5/7| 3×1.5| 3×2| 99| –| 95| 88| 78|
66| 50| 30| | |
GP3Wm – MK 5/8| GP3W – MK 5/8| 3×2.2| 3×3| 100| –| 100|
100| 90| 75| 57| 34| | |
GP3Wm – MK 8/4| GP3W – MK 8/4| 3×1.1| 3×2| 56| –| –|
53.5| 51| 47.5| 43| 37.5| 30.5| 22.1| 12
GP3Wm – MK 8/5| GP3W – MK 8/5| 3×1.5| 3×2.5| 70| –| –| 67| 64|
59.5| 54| 47| 38| 27.5| 15.5
GP3Wm – MK 8/6| GP3W – MK 8/6| 3×2.2| 3×3| 84| –| –| 80| 77|
72| 64.5| 56| 45.5| 33| 18.5
The data shown in the diagram and tables indicate performance with 3 pumps in operation
PERFORMANCE CURVES
| TYPE Single-phase | VOLTAGE 230 V |
|---|---|
| GP3Wm – MK 3/3 | 3 x 9.0 A |
| GP3Wm – MK 3/5 | 3 x 12.5 A |
| GP3Wm – MK 3/6 | 3 x 14.0 A |
| GP3Wm – MK 5/4 | 3 x 9.0 A |
| GP3Wm – MK 5/5 | 3 x 11.0 A |
| GP3Wm – MK 5/7 | 3 x 13.5 A |
| GP3Wm – MK 5/8 | 3 x 16.0 A |
| GP3Wm – MK 8/4 | 3 x 12.5 A |
| GP3Wm – MK 8/5 | 3 x 14.0 A |
| GP3Wm – MK 8/6 | 3 x 18.0 A |
| TYPE Three-phase | VOLTAGE 400 V |
| --- | --- |
| GP3W – MK 3/3 | 3 x 3.3 A |
| GP3W – MK 3/5 | 3 x 4.2 A |
| GP3W – MK 3/6 | 3 x 5.0 A |
| GP3W – MK 5/4 | 3 x 3.3 A |
| GP3W – MK 5/5 | 3 x 4.0 A |
| GP3W – MK 5/7 | 3 x 5.0 A |
| GP3W – MK 5/8 | 3 x 6.0 A |
| GP3W – MK 8/4 | 3 x 4.2 A |
| GP3W – MK 8/5 | 3 x 5.0 A |
| GP3W – MK 8/6 | 3 x 6.5 A |
DIMENSIONS
| TYPE | PORTS | DIMENSIONS mm | kg |
|---|---|---|---|
| Single-phase | Three-phase | DN1 | DN2 |
| 1~ | 3~ | ||
| GP3Wm – MK 3/3 | GP3W – MK 3/3 | **2½”** | |
| **2″** | **** 447 | ||
| **** 810 | **** 115 | ||
| **** 284 | **** 800 | ||
| **** 435 | 1143 | **** 91 | 849 |
| 123.0 | 124.0 | ||
| GP3Wm – MK 3/5 | GP3W – MK 3/5 | 1197 | 876 |
| GP3Wm – MK 3/6 | GP3W – MK 3/6 | 1224 | 930 |
| GP3Wm – MK 5/4 | GP3W – MK 5/4 | 1170 | 876 |
125.0
GP3Wm – MK 5/5| GP3W – MK 5/5| 1197| 903| 129.0| 130.0
GP3Wm – MK 5/7| GP3W – MK 5/7| 1251| 957| 136.0| 136.0
GP3Wm – MK 5/8| GP3W – MK 5/8| 1278| 984| 140.0| 140.0
GP3Wm – MK 8/4| GP3W – MK 8/4| 1170| 876| 131.0| 132.0
GP3Wm – MK 8/5| GP3W – MK 8/5| 1197| 903| 132.0| 133.0
GP3Wm – MK 8/6| GP3W – MK 8/6| 1224| 930| 142.0| 142.0