Grundfos PG Rainwater Harvesting System
 

Grundfos PG Rainwater Harvesting System

The  Grundfos PG is an interconnect device that allows you to save precious drinking water by using your harvested rainwater for toilet and garden applications.

Always prioritizing the use of the rainwater, the PG will automatically switch over to mains water source when your rainwater tank runs low, or during electrical failure.

The pump itslef is only active when the rainwater is being drawn from the tank. It does not operate when the PG has switch to mains water. The pump controller automatically starts and stops the pump when a demand is sensed - for example, flushing a toilet or operating the garden tap.

Features

  • Easy to install
  • Does not require any regular maintenance
  • In-built dual check valve for backflow prevention
  • Automatically swithces to mains water in the event of a power or pump failure
  • 10m rainwater tank sinker float sensor

 

Technical Data

Max. flow rate (mains)

: 60 lit/m

Max. Water Temperature

: 50C continuous

Max. flow Rate (pump)

: As provided by the pump

Min operating temperature

: -5C

Max. mains water pressure

: 600 kPa

Mains water inlet size

: ¾” BSP(F) via dual check valve

Max pump pressure

: < 600 kPa

Electrical data

: 1ph/240V/50Hz

 

Model

Power kW

Maximum operating Flow Rate m3/hr

Maximum Operating Head bar

Enclosure Class

PG CM1-6

0.50

2.4

4.5

IP 44

PG CM3-5

0.50

4.2

4.1

IP 44

PG SB/SBQ

.90

5.4

3.5

IP 68

 

Model

Suction mm

Discharge mm

Length mm

Width mm

Height mm

Weight mm

PG CM1-6

25

25

350

140

610

16

PG CM3-5

25

25

440

145

610

21

PG SB/SBQ

-

25

150

150

450

11

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