benjamin. faucet design. February 21st , 2018.
It is quite obvious that the touch feature is powered by electricity. Sometimes people ask whether the faucets need to be connected to the mains. They think it might be dangerous. Others mistrust the very idea of electricity and water being together in a faucet. In fact, the touch sensitive faucets are powered by a set of four or six 1.5 V batteries. The voltage reached by such a pack does not exceed 9 volts, which is considered safe voltage even by the strictest regulations. The electricity, however weak, never comes in contact with water. In a typical touch sensitive faucet, water runs inside pipes made from non-conductive materials. So there is no threat whatsoever that could be attributed to the use of electricity in touch sensitive faucets.
First - Determine Faucet Design: There are four basic faucet designs: ball-style, cartridge, disc, and compression. Sometimes a faucet type can be determined by the outer appearance, but often the faucet must be taken apart to identify what kind of faucet it is. The four faucet designs come under two categories: washer and washer-less.
Cartridge Faucet - this washerless faucet is identified by the narrow metal or plastic cartridge inside the faucet body; and it is available in both single and double handled cartridge designs. Cartridge faucets have a hollow cartridge insert that lifts and rotates to control the flow and temperature of water. Dripping at the spout occurs when the cartridge seals wear out. Leaks at the base are caused by worn o-rings.
The faucets with detachable spray wands have become extremely popular during the last decades. But there is always some doubt whether the pull-out wand will have a snug enough fit into its dock. If the wand does not sit very well, the faucet loses a lot. It can be beautifully designed, but if the spray head does not sit where it should, the whole faucet will look cheap and inferior. That is why the leading manufacturers of kitchen faucets have done their best to secure the wand firmly in its place.