Max. flow: 82 litres / minute
Features
- Automatic pressure controller (Start & Stop on demand)
- Run dry protection
- Quick & Easy to install
- Efficient on power consumption
Construction
- Pump casing: Stainless steel AISI 304
- Motor shaft: Stainless steel AISI 304
- Impellers: Technopolymer
- Diffuser: Technopolymer
- Double mechanical seal:
- Silicon carbide-graphite/ceramic – graphite
- Motor IP68 -Cooled motor (by water) of Class F and thermal protection
- Electric power cable H07RN 5m with 3 pin
Application
- The MHR20 Valve comes with 3/4″ outlet, which makes the system ideal for domestic applications. Certified to: WaterMark ATS 5200.477 WMK 60075 Complies with AS/NZS 3500.1 when installed by a licensed plumber
- The MHR20 Valve is designed to operate with an electronic pressure controller with auto restart not requiring a float switch. This design makes the MHR20 System very simple to install.
- The MHR20 Series is a fully Automatic Hydraulic Rain/ Mains water changeover device designed for pressure pump supply systems in harvesting rainwater for the toilet, laundry and household applications with automatic mains backup.
Note: Should the static mains supply be greater then 400 kPa above the supply pressure of the pump the device will not completely isolate mains water.
Valve Specifications
- Maximum power source pressure 500 KPa
- Maximum pump pressure 600 KPa
- Flow rate >50 LPM.
- Maximum water temperature 40C
- Rain water inlet 25 mm 1″ BSP F
- Main water in 20 mm 3/4″ BSP F
- Outlet 20 mm 3/4″ BSP F
Construction
- Pump body: AISI 304 stainless steel
- Impeller: Stainless steel
- Motor shaft: Stainless steel
- Mechanical seal: Ceramic/Graphite/NBR
Valve Features
- Australian made changeover valve
- Easy to install
- Does not require regular maintenance
- MHR20 valve-solid brass construction
- No in-tank float required
- Mains pressure not limited
- Certified dual check valve for backflow prevention
Construction
- Pump casing: Stainless steel AISI 304
- Motor shaft: Stainless steel AISI 304
- Impellers: Technopolymer
- Diffuser: Technopolymer
- Double mechanical seal: silicon carbide-graphite/ceramic-graphite
- Motor IP68
- Cooled motor (by water) of Class and thermal protection
- Electric power cable H07RN 5m with 3 pin

MHR20-750S SUBMERSIBLE OPTION
Valve Features
- Australian made changeover valve
- Easy to install
- Does not require regular maintenance
- MHR20 valve-solid brass construction
- No in-tank float required
- Mains pressure not limited
- Certified dual check valve for backflow prevention
Construction
- Pump casing: Stainless steel AISI 304
- Motor shaft: Stainless steel AISI 304
- Impellers: Technopolymer
- Diffuser: Technopolymer
- Double mechanical seal: silicon carbide-graphite/ceramic-graphite
- Motor IP68
- Cooled motor (by water) of Class F and thermal protection
- Electric power cable H07RN 5m with 3 pin














