Figure 1.—Globe type angle valve. Faucets are similar in construction.
Replacement stems are available; however, if the receiving threads are worn excessively a new stem would not eliminate the problem completely. In some faucets it is possible to replace the stem receiver, the stem, and the seat, thus restoring all normal wearing parts within the faucet.
Several new faucet designs aimed at easier operation, eliminating drip, and promoting long service life, are on the market. Instructions for repair may be obtained from dealers.
If a shower head drips, the supply valve has not been fully closed, or the valve needs repair.
After extended use and several repairs, some valves will no longer give tight shutoff and must be replaced. When this becomes necessary, it may be advisable to upgrade the quality with equipment having better flow characteristics and longer-life design and materials. In some cases, ball valves will deliver more water than globe valves. Some globe valves deliver more flow than others for identical pipe sizes. Y-pattern globe valves, in straight runs of pipe, have better flow characteristics than straight stop valves. [Figure 2] shows the features of different types of valves.
Figure 2.—Different types of valves: A, Glove valve; note large passages of water. B, Y-pattern globe valve; the flow is almost straight. C, Ball valve, straight flow; some makes are available with the port in the ball the same diameter as the pipe.
PRECAUTIONS