Description
The Pentax PM45-A 230v (code 022-402) is an automatic booster pump for homes and small buildings on a normal single phase supply. A 0.37 kW Pentax peripheral pump gives up to 40 l/min and up to 40 metres of head, with about 21 metres at 20 l/min. The pump inlet is a 1″ female thread and the outlet, on the Watertech Presscontrol, is a 1″ male thread. Plug it in and it starts as soon as a tap or shower is opened, then stops a few seconds after the outlet closes.
The PM45-A 110v is the same pump and controller for site supplies. Choose this 230v version for houses, flats, offices and shops where the unit runs from a standard socket.
The pump end is a Pentax PM 45A peripheral pump with a cast iron pump body and motor bracket, a brass impeller with radial blades, an AISI 416 stainless steel motor shaft and a ceramic and graphite mechanical seal. Pentax gives the pump a maximum operating pressure of 6 bar. The Watertech Presscontrol is fitted to the pump outlet and comes pre-wired, ready to plug in.
Features
- Pump and Presscontrol supplied as one pre-wired unit
- Starts when an outlet opens and stops shortly after it closes
- Stops the pump if the water supply runs out, with a manual restart button
- No pressure vessel needed for normal use
- Up to 40 m head and 40 l/min from a 0.37 kW motor
- 230v single phase, drawing 2.3 A
Applications
- Boosting showers and taps fed from a loft or cupboard cold water tank
- Raising pressure to a single bathroom or kitchen
- Small washing and cleaning systems
- Garden watering from a rainwater or storage tank
The PM45-A is for clean water only. Do not use it for water containing sand, grit or fibres, for sewage or drainage, or for oils and chemicals. Install it with the water level above the pump inlet; it is not intended for lifting water from a well or borehole, and it should not be connected directly to the water main. For several bathrooms or outlets running at once, choose a larger booster pump.
Pentax PM45-A range
| Model | Supply | Motor output P2 (kW) | Max head (m) | Head at 10 l/min (m) | Head at 20 l/min (m) | Head at 30 l/min (m) | Max flow (l/min) | Inlet x outlet | Code |
|---|---|---|---|---|---|---|---|---|---|
| PM45-A 230v | 230v single phase | 0.37 | 40 | 30 | 21 | 13 | 40 | 1″ F x 1″ M | 022-402 |
| PM45-A 110v | 110v single phase | 0.37 | 40 | 30 | 21 | 13 | 40 | 1″ F x 1″ M | 022-403 |
Head figures are Pentax’s published performance for the PM 45A pump at 230v, which our curve for both versions follows. At 40 l/min the pump gives only about 5 metres, so plan on 30 l/min or less for useful pressure.
See the full Pentax PM45-A automatic booster pump range for both versions.
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