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plumbing04.htm Plumbing

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INSTALLING SHUTOFF ANGLE VALVES

A lavatory/sink requires both hot- and cold-water supply service. The water service plumbing is connected from the rough-in water lines to shutoff valves and from the valves to the hot- and cold-water faucets. When the rough-in plumbing comes out from the wall, use shutoff angle valves. When the rough-in plumbing comes up through the floor, use straight shutoff valves.

Installing shutoff angle valves to steel pipe. Use the following steps to install angle valve on threaded galvanized pipe (see Figure 12):

FIGURE 12.  INSTALLING SHUT OFF ANGLE VALVE, STEEL PIPE
FIGURE 12. INSTALLING SHUT OFF ANGLE VALVE, STEEL PIPE

 

  1. Check and clean the threads of the rough-in water pipe.
  2. Slide the escutcheon on the pipe, and push it against the finished wall. Coat threads with pipe joint compound.
  3. Screw angle valve hand-tight on threads, and then tighten with wrench. Make sure the valve’s other opening is facing up towards the faucets.
  4. Set valve in closed position.

Installing shutoff angle valves to rigid copper tubing. Use the following steps to install an angle valve to rigid copper tubing (see Figure 13):

FIGURE 13.  INSTALLING SHUTOFF ANGLE VALVE, COPPER PIPE
FIGURE 13. INSTALLING SHUTOFF ANGLE VALVE, COPPER PIPE

 

  1. Check and clean the copper tubing.
  2. Slide the escutcheon, coupling nut, and compression ring onto the tubing.
  3. Slide the valve onto the tubing, and screw the coupling nut hand-tight onto the valve. Tighten coupling nut with a wrench. Make sure the valve's other opening is facing up towards the faucets.
  4. Set valve in closed position.

Installing shutoff angle valves to plastic pipe. Use the following steps to install a shutoff angle valve to plastic pipe (see Figure 14):

FIGURE 14.  INSTALLING SHUTOFF ANGLE VALVE, PLASTIC PIPE
FIGURE 14. INSTALLING SHUTOFF ANGLE VALVE, PLASTIC PIPE

 

  1. Clean and apply primer around the outside end of the rough-in plumbing.
  2. Apply solvent cement around the outside end of the rough-in plumbing.
  3. Apply solvent around the outside of the smooth end of the male adaptor, and push it onto the end of the rough-in plumbing.
  4. Apply pipe joint compound to the shutoff valve threads, and screw valve hand-tight into the female adaptor.
  5. Tighten connection using two wrenches: one to hold the adaptor, the other to tighten the valve connection. Make sure the valve's other opening is facing up toward the faucet.

David L. Heiserman, Editor

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Revised: June 06, 2015