Switchable / Variable water pump: All you need to know

A variable water pump is a mechanical water pumps that allow the impeller to move or not the coolant through the cooling circuit.

The Elektronika II Profi Espresso Machine with the classic design with a stainless steel body and electronic programable volumetric brewing buttons! It is made with the best materials from ECM so it was built to last! comes with a Switchable water source option between the internal reservoir to the main water system.

ECM Elektronika II Profi Espresso Machine

BOKYWOX Centrifugal Pump NPT 3/4'' Automatic Booster Pump 120W Hot Water Recirculating Pump Stainless Steel 304 for Faucet/Solar Heater(LRS12-9G) - Yahoo Shopping

The motor delivers premium energy efficiency and programs flexibility with a digital controller mounted directly onto the pump. The Variable Speed Pump can save you up to 80% in energy costs over single-speed pumps. It also has faster payback than the more expensive variable speed pumps because it is sized to match the performance of the most common medium heat pumps.

Xtremepowerus 115-Volt 1.5HP Swimming Pool Pump Variable Speed Digital LCD Above Ground Pool w/Fitting

VEVOR 1.5 HP Cast Iron Sprinkler/Irrigation Pump, 115/230 Volt, 66 GPM 3450 RPM Shallow Well Jet Water Pump Booster, 1'' NPT Outlet 1-1/4'' NPT Inlet Lake Lawn Pump for Irrigation Sprinkler System

XtremepowerUS 115-Volt/230-Volt Dual Voltage Universal 1 HP Pressure Side In-Ground Swimming Pool Pump 75050-H - The Home Depot

Tornado Tools Green Expert 1/2HP Submersible Utility Pump with Built-In Switch Manual/Automatic On/Off Switchable for Both Clean Dirty Water 203612

XtremepowerUS Inground Booster Pressure Sided Water Pump Garden Pond, 1HP 115/230V

Technical Messenger 012021 Replacing switchable coolant pump CP 623 000P

Engine systems Schaeffler Greater China

TDI water pump shutter failure - VW Audi Seat Skoda EA288 1.6TDI 2.0TDI

DC 24V 1.1 A Water Suction Pump Free Switchable Suction Pump 478μl /Rev High Power Water