- Dry-running protection for high operational reliability
- High reliability thanks to automatic mode and corrosion protection through coated hydraulics
- Standardised design for easy installation
- Compact design and low-noise operation (55 dBA) for domestic applications
- Low power consumption thanks to automatic control
PB
Safe and stable pressure boosting for the residential environment.
Safe and stable pressure boosting for the residential environment.
The Wilo-PB is a non-self-priming, single-stage centrifugal pump for automatic water supply and pressure boosting. It is suitable for the descending installation of roof-mounted water tanks (e.g. elevated tanks) to the extraction points of the water supply below in semi-detached/detached houses. It is the ideal pump for low or fluctuating water pressure within public water supply networks. Thanks to automatic mode, it always ensures stable water pressure.
Design
Circulating pump
Application
- Residential pressure boosting from a water tank
Equipment/function
- Directly flanged motor
- Thermal motor protection switch for 1~230V version
- Flow sensor for automation of versions PB-…A
- Flow sensor, Pressure switch and pressurized tank for automation and protection of versions PB-…S…A
Type key
| Example: | Wilo-PB-S252SMA |
| PB for Pump Boosting | Pump type |
| S for plastic, C for coating | Functional or material characteristic |
| 25*10 = 250W | Output/10 |
| 2 for third generation | Serie number |
| S for small, N for normal and L for large | Tank size |
| E for 50Hz, M for 60Hz | Frequency |
| A for automatic | Automatic device |
Technical data
- Mains connection 1~230 V, 50 Hz (for …E versions)
- Mains connection 1~220 V, 60 Hz (for …M versions)
- Connection (pressure and suction side): from ¾’’ up to 1 ¼’’ – Depending on the models
- Fluid temperature from 5°C to +80°C [for PB-(S)…A]
- Fluid temperature from 5°C to +60°C [for PB-…S…A]
- Ambient temperature from 0°C to +40°C
- Storage temperature from -20°C to +60°C
- Max. inlet pressure: From 0.45 bars up to 1.0 bars – Depending on the models
- Max. outlet pressure: From 1.35 bars up to 3.1 bars – Depending on the versions
- Switch-on flow: 2l/min (only for PB-(S)…A)
- Switch-on pressure: 0.8 bars for PB-250SEA / 1.1bars for PB-401SEA
- Switch-off flow: 2l/min for PB-(S)…A versions
- Switch-off flow: 5l/min for PB-…S…A versions
- IP rating 1~: IP X4
Materials
- Pump housing: EN-GJL-200 for PB-…A and PB-…S…A
- Pump housing: mPPO GF30 for PB-S…A
- Impeller: mPPO GF30 and mPPO GF20 (depending on versions)
- Terminal box cover: ABS
- Impeller cover: Brass
- Shaft: Stainless steel 1.4006
- Mechanical seal: Carbon/ Ceramic
Scope of delivery
- Pump
- Installation and operating instructions
- Accessory assembly (2 sets of unions, nipple, gasket for piping, for PB-201EA & PB-350MA only)
Installation and operating instructions
Wilo-PB
Article Number: 3076725
Issue date: 2018-01
Edition: 02
Language: de, el, en, es, fr, it, nl, pl, ru, sr
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