derbyan. faucet design. February 21st , 2018.
Ball-style Faucet - this washerless faucet has a single handle and is identified by the hollow metal or plastic ball inside the faucet body which controls water temperature and flow. Many have a rounded cap with knurled edges located under the faucet handle. Dripping at the faucet spout is caused by worn valve seats, springs, or a damaged ball. Leaks around the base of the faucet are caused by worn o-rings.
Compression Style Faucets - this design is used for many double-handle faucets and is the old-fashioned style faucet (when shutting the faucet off, you usually can feel the rubber washer being squeezed inside the faucet.) Compression faucets have separate controls for hot and cold water and can be identified by the threaded stem assemblies inside the faucet body. Compression faucets all have washers or seals which control water flow and need to be replaced regularly over time. The replacement parts are inexpensive and easy to replace.
To disassemble unscrew the setscrew and pull off handle. Tighten the plastic adjusting ring inside the cap by turning it with a special flat adjusting tool-or fit tow screwdrivers into the slots and cross their blades to turn the ring. If your ball-style faucet with this type of cap is leaking from the spout, first try tightening the cap with channel pliers. Still leaking? Disassemble and replace worn/broken parts. Often you need to lift out the ball and replace the rubber seats and springs on both sides of the valve. If the faucet leaks around the spout, replace worn o-rings. Replace rotating ball only if clearly worn.
For modern faucets, the truth is quite opposite though. The touch function is reliable and under normal conditions always works as expected. These faucets cannot be activated by pets, and they are helpful for families with children.