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Foam Sprinkler Test connection

Question asked by ashikpn on Sep 6, 2020
Latest reply on Sep 6, 2020 by nocivus

Dear all , 


Good Day , 


one of the ongoing project , i have to provide a test connection for periodic inspection in Foam sprinkler system main riser after the proportioner. my basic question is , what is  the size would be ? please suggest. 


For Example 

Foam system main Riser Pipe dia is 3" or Greater, shall i consider same size as Main riser or Can i go with 1" 


NFPA 16 Saying in test connection 5.14

system test connection shall be sized to accommodate both the low flow of proportioner and maximum anticipated flow through the proportioner