PEDROLLO WR IN-LINE close-coupled centrifugal pumps Owner’s Manual

PEDROLLO WR IN-LINE close-coupled centrifugal pumps

FIELD PERFORMANCE

• Flow rate up to 700 l/min (42 m3/h)
• Head up to 26 m

INSTALLATION AND USE

WR centrifugal pumps are designed to transfer clean water free from abrasive particles and liquids that will not damage the pump’s components.
Suitable for civil and industrial applications such as heating, air conditioning, cooling, and circulation systems.

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.

Feature

• Clean water

• Agricultural use

• Civil use

• Industrial use

INCLUDES

• Pump’s impeller directly mounted on the motor shaft.
• Pump body with suction and discharge ports of identical diameter.

APPLICATION LIMITS

• Manometric suction head up to 7 m
• Liquid temperature between -10 °C and +110 °C
• Ambient temperature between -10 °C and +40 °C
• Maximum pressure in the pump body 10 bar (PN10)

AVAILABLE UPON REQUEST

• Counter flange KIT including screws, nuts and gaskets
• Mechanical seal options available
• Different voltage requirements 60 Hz frequency

Diagram

WR 40/125

TYPE| POWER (P2)| 1~| 3~| Q| m³/h| 0| 3| 6| 9| 12| 15| 18
---|---|---|---|---|---|---|---|---|---|---|---|---
Single-phase| Three-phase| kW| HP| l/min| 0| 50| 100| 150| 200| 250| 300
WRm 40/125-SB| WR 40/125-SB| 0.55| 0.75| IE2| IE3| H metres| 18.7| 18.2| 17.3| 15.8| 13.7| 10.7| 7
WRm 40/125-SA| WR 40/125-SA| 0.75| 1| 22.4| 21.8| 20.6| 18.7| 16.2| 13| 9

WR 50/125

TYPE| POWER (P2)| 1~| 3~| Q| m³/h| 0| 6| 12| 18| 24| 30| 33| 36| 39| 42
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
Single-phase| Three-phase| kW| HP| l/min| 0| 100| 200| 300| 400| 500| 550| 600| 650| 700
WRm 50/125-SB| WR 50/125-SB| 0.55| 0.75| **E2| IE3| H metres| 14| 13.5| 12.5| 11| 8.8| 6| | | |
WRm 50/125-SA| WR 50/125-SA| 0.75| 1| 15| 14.5| 13.5| 11.8| 9.7| 7| 5.5| 3.5| |
WRm 50/125C| WR 50/125C| 1.1| 1.5| 16| 16| 15.5| 14| 11.5| 8| 6| | |
WRm 50/125B| WR 50/125B| 1.5| 2| 20.5| 20.5| 19.8| 18.5| 16| 12.8| 11| 9| |
WRm 50/125A| WR 50/125A**| 2.2| 3| 26| 26| 25.5| 24| 22| 18.5| 17| 14.5| 12.5| 10

Technical data

ABSORPTION

DIMENSIONS

MATERIALS AND COMPONENTS

1. Pump body
   Cast iron with cataphoresis treatment, provided with flanged ports

2. Cover
   Cast iron with cataphoresis treatment

3. Impeller
   Stainless steel AISI 304

4. Shaft
   Stainless steel AISI 431

5. Mechanical seal
   ** Water pump| Seal| Shaft| Materials**
   ---|---|---|---
   WR 40/125-S WR 50/125-S| FNC-14| Ø 14 mm| Graphite / Ceramic / EPDM
   WR 50/125| FN-20| Ø 20 mm| Graphite / Ceramic / EPDM

6. Electric motor
   WRm: single-phase 230 V – 50 Hz with capacitor and winding integrated thermal motor protection
   WR: 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
   

Documents / Resources

| PEDROLLO WR IN-LINE close-coupled centrifugal pumps [pdf] Owner's Manual
WR 40-125, WR 50-125-SA, WR 50-125-SB, WR 50-125C, WR 50-125B, WR IN-LINE close-coupled centrifugal pumps, WR IN-LINE centrifugal pumps, close-coupled centrifugal pumps, centrifugal pumps, pumps
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References

• Pedrollo S.p.A.

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