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Which valve should be fitted immediately below the downstream of the main alarm valve of a standard sprinkler installation?

Which valve should be fitted immediately below the downstream of the main alarm valve of a standard sprinkler installation? Correct Answer Main stop valve

Explanation:

A sprinkler installation shall be fitted with a suitable main installation valve to control the water supply to the installation. The valve set comprise of:

  1. a main stop valve,
  2. an alarm valve, and
  3. a water motor alarm and gong 

Components Of Sprinkler System

The various types of valves used in the installation are as under:

  1. Stop valves
  2. Test valves
  3. Drain valves
  4. Flushing valves
  5. Check valves
  6. Installation valves
  7. Pre-action valves
  8. Subsidiary valves

Main Stop Valves

  • One, and only one, main stop valve shall be fitted immediately downstream of the main alarm valve of a standard sprinkler installation.
  • The main stop valve(s) should be at a fire brigade access level and readily accessible when responding to a fire alarm.

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