It’s not every project write-up that opens with a sentence like “I had this TURBOVAC 50 turbomolecular pump laying around…”, but then again not every write-up comes from someone with a lab as stuffed ...

Fire pump controllers are control panels containing electrical components, such as circuit breaker, switches, relays, and other devices, dedicated to the operation of fire pumps. The devices within a ...

DOWNERS GROVE, Ill., Nov. 24, 2020 /PRNewswire/ -- Quattroflow™, part of PSG and Dover (NYSE: DOV), today announced the availability of its new Q-Control Integrated Pump Controller, which is designed ...

There was a time when the front bumper was the preferred location, and just about the only one, for fire pumps on motorized apparatus. Over the decades, pump locations have migrated to various ...

The ORB heat pump controller is a patent-pending fully integrated equipment intelligence system offering complete operating, monitoring, control, and diagnostics capabilities. It performs the ...

Beyond the wheel, the most important mechanical equipment serving humanity is the centrifugal pump. Centrifugal pumps make modern quality of life possible. Turn on a faucet and a centrifugal turbine ...

Now, the water level begins to decrease and the shorter sensor will be no longer in contact with the water, but IC1C output will be hold high by the signal return to pin #5 of IC1B, so the pump will ...

In the NEC, the normal philosophy for circuit protection is to shut down equipment before allowing the supply conductors to overheat. Article 695 departs from this philosophy. The fire pump motor must ...

This circuit optimises the operation of a solar hot water system. When the water in the solar collector is hotter than the storage tank, the pump runs. The circuit comprises two LM335Z temperature ...

Standpipe systems can be found in occupancies that range from apartments to high-rises to large commercial buildings. These systems are relatively simple, yet most of the breadth of knowledge that ...