Re: Fire pump annual test

2012-10-06 Thread MPhelps
Power Limiting Device (aka Cruise Control) - Original Message - From: bcasterl...@fsc-inc.com [mailto:bcasterl...@fsc-inc.com] Sent: Sunday, October 07, 2012 12:18 AM To: sprinklerforum@firesprinkler.org Subject: Re: Fire pump annual test on 2nd thought (calc), 65-70% is closer, I bet. 7

Re: Fire pump annual test

2012-10-06 Thread bcasterline
on 2nd thought (calc), 65-70% is closer, I bet. 78% is 4500 @ 170. by the way, what does PLD stand for? Quoting bcasterl...@fsc-inc.com: George, 78% efficient at overload.. not too shabby! Do you recall the rated RPM? If I assume a 14" impeller diam. I get 2600 RPM. I thought about converting t

Re: Fire pump annual test

2012-10-06 Thread bcasterline
George, 78% efficient at overload.. not too shabby! Do you recall the rated RPM? If I assume a 14" impeller diam. I get 2600 RPM. I thought about converting the 400 speed reduction to the pump room temperature rise but said nahhh.. it would be negligible against the 1st law of testosterone, Lo