faucet water switch

Hi,

what is the term for a particular switch that turns water on for a faucet in a train restroom when you touch it - in German it's called "Kurzhubtaste" with "kurz" meaning "short", "hub" indicating "lifting" and "taste" meaning "key"/or "button".
Thanks. Bernhard

term

If it is a moving device then it would be a handle or knob. If it is a push button, then it would be called a "push button". I suppose there is a good reason for this interest in a train rest room, but it is beginning to appear like an inquirer in a different site who was fixated on Sloan flush valves and was asking about every nuance of change and the exact dates they occurred.

There are many brands of faucets which use an infrared eye to turn on the water. They are usually referred to as "sensormatic" or some such turn.

All I have seen on the Amtrak trains were spring-loaded timed faucets. I suppose some of the newer commuter trains may have something more modern. On the Super-Liner sleepers it is redundant because they usually forgot to take on water at the last stop so there isn't any.

Thanks for your help.

Push button is the best term. The reason I was asking is I am translating a description for a WC module to be installed into a high speed train in China.
Thanks again

Bernhard