| Most drainage pumps are fitted with a level swttch that provides a hysteresis of 1O~15 cm. When small volumes are drained, the liquid run...
All items tagged with pump and Switch (3)
| If you have a non-qwerty keyboard and would like to use this with your computer without having to reIearn where the deviating keys are, this...
| The pump in sorne central-heating systems has two or even three speeds. At the lowest speed, not much hot water is pumped around the cir...