Sulzer’s new pump series is developed for the pumping and recirculation of activated sludge in wastewater treatment plants during the nitrification and denitrification process, as well as for the ...

An ESP32-compatible controller that turns a "dumb" hot-water re-circulation pump into a "smart" one. The pump is turned on demand (e.g. someone calls for hot water by turning on a faucet), and turned ...

So what is the car icon with the counter-clockwise circular arrow button for? That's called the air recirculation button, and ...

In high temperatures, recirculating prevents your car from bringing in really warm outside air and working extra hard to ...