The Davies Pumps DHM series is a multistage pump built for years of trouble-free service. All parts of the pump that are in contact with the water are made of stainless steel for corrosion resistance. The Davies Pumps DHM provides outstanding reliability, primarily for small to medium house pressure systems but also for domestic pressure boosting, liquid transfer in industry and farming applications or in air conditioning/cooling systems or OEM equipment. The mechanical seal is high-quality silicon carbide/carbon with EPDM elastomers for long service life.
Technical Features:
- Liquid temperature range: 0°C to +90°C.
- Maximum ambient temperature: +50°C.
- Maximum operating pressure: 10bar 0°C to 40°C, 6bar 41°C to +90°C.
- Suction and discharge chambers in 304 stainless steel.
- Impellers, intermediate chambers, spacers and base plate in 304 stainless steel.
- Pump shaft in 431 stainless steel.
- Mechanical seal: Silicon carbide/carbon.
- O rings: EPDM.
Motor Features:
- Totally enclosed, fan-cooled.
- IP54 enclosure.
- Class F insulation.
- 50Hz 220-240V 1 phase.
Supplied With:
- Hydrogenie 2 Pre-wired auto controller
- Connection union
Controller Features:
- Max pressure: 12Bar
- Operating temperature range: -0 to +60ºC
- Connection Thread: 1” male
- Minimum pump pressure: 3.0Bar
- Automatic reset/restart following run dry: If the pump runs dry the controller will attempt to re-prime
- 10 times over 24hours, each attempt lasting 5 seconds.
- 24H Anti-Jam function: If the pump remains idle for 24 consecutive hours the controller will run
- the pump for 5 seconds to prevent the pump from jamming.
Supplied With:
- Pre-wired Hydrogenie 3 Auto controller with pressure gauge
- Connection union
- Brass tee
- 2.8Litre pressure tank
Controller Feratures:
- Max pressure: 12Bar
- Operating temperature range: -0 to +60ºC
- Connection Thread: 1” male
- Cut In Pressure: Adjustable cut in pressure: 1.5, 2.0 & 2.5Bar via the control panel
- Minimum pump pressures (depending on user set cut in pressure): 1.5Bar = 3.0Bar. 2.0Bar=3.5Bar. 2.5Bar =4.0Bar
- Automatic reset/restart following run dry: If the pump runs dry the controller will attempt to re-prime
- 10 times over 24hours, each attempt lasting 5 seconds.
- 24Hr Anti-Jam function: If the pump remains idle for 24 consecutive hours the controller will run the pump for 5 seconds to prevent the pump from jamming.
Supplied With:
- XMP Pressure switch and union
- 5 Way tee
- Pressure Guage
- Pressure Tank
- Check Valve
The Davies Pumps DHM traditional pressure system with mechanical switch and tank provides outstanding reliability and performance where electronic controller are not suitable.
Note: No Run Dry Protection
