Sep 10, 2013 #1 HnAw Mining Sep 10, 2013 3 can Ball Valves work as indicating valves in suction and discharge lines for Jockey Pump?
Sep 10, 2013 #2 skdesigner Mechanical Aug 17, 2010 432 NFPA 20-2013 4.25.5.2 Valves and components for the pressure maintenance pump shall not be required to be listed. 20-2013 4.25.5.7 The isolation valves serving the pressure maintenance pump shall not be required to be supervised. It would appear ball valves are acceptable. Upvote 0 Downvote
NFPA 20-2013 4.25.5.2 Valves and components for the pressure maintenance pump shall not be required to be listed. 20-2013 4.25.5.7 The isolation valves serving the pressure maintenance pump shall not be required to be supervised. It would appear ball valves are acceptable.
