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Alexxxh Alexxxh
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Posts: 857
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6 years ago
Automatic wet sprinkler systems have parts of the sprinkler shut down, rather than completely shutting off the system, in order to avoid freezing during cold weather. These shutoff valves are called ________________.
 
  a. sectional valves
  b. cold-weather valves
  c. post indicating valves (PIVs)
  d. outside stem and yoke (OS&Y) valves
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wrote...
6 years ago
b
Alexxxh Author
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6 years ago
I appreciate your time
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