The PEDROLLO WR series are in-line close-coupled centrifugal pumps with flanged inlet and outlet connections. They are designed to work with heating, air conditioning, cooling and circulation systems in civil and heavy industrial applications. The pump body and cover are constructed from cast iron with cataphoresis treatment while the impeller and diffuser are made from AISI 304 stainless steel.
MOTOR
Pumps are close coupled to a TEFC brushless induction motor designed for continuous operation and three-phase IE3 versions optimized to work with inverters for efficient and quiet operation. Single-phase IE2 motors have integrated thermal protection with a capacitor and can be connected directly to the mains power supply through a 10Amp fuse or MCB. A remote starter with thermal overload should be fitted for three-phase versions.
Enclosure Class: IPX4
Insulation Class: F
Speed: 2900rpm
OPERATING CONDITIONS
Pumped Liquid: Thin, clean, chemically non-aggressive liquids without solids or fibres.
Max. Fluid Temperature: -10 to +110°C
Ambient Temperature: -10 to +40°C
Max. Suction Lift: 7m (at sea level)
| Model |
Voltage (V) |
Motor (kW) |
Current (A) |
DN1 (″) |
DN2 (″) |
H (mm) |
B (mm) |
A (mm) |
H1 (mm) |
Weight (kg) |
| WRm 40/125-SA |
1x240 |
0.75 |
6.0 |
1½ |
1½ |
350 |
320 |
195 |
81 |
21.1 |
| WR 50/125B |
3x415 |
1.5 |
4.5 |
2 |
3 |
432 |
340 |
220 |
90 |
30 |
| WR 50/125A |
3x415 |
2.2 |
5.2 |
2 |
3 |
452 |
340 |
220 |
90 |
32 |
