John Kogel Posted November 30, 2011 Report Share Posted November 30, 2011 The original oil burner has been replaced with a 125 amp electric unit. This little unit heats about 2000 sq ft. What are the red devices on the supply pipe and what functions do they serve? From the right at the supply valve, I see a cast iron bulb that could be a sediment trap. Then there's a pressure regulator? The device in the foreground has a discharge tube. Is it a pressure relief valve? Why does this system need these devices? At the left of pic 1 is the 55 year old water heater. I called it copper, but it looks like it could be brass? It has one 120 volt element, and is still heating water faithfully. The pressure relief valve is leaking, though. I don't think there is a TPRV with a temperature sensor that is long enough to be mounted that high above the tank, is there? I described it as a PRV. Click to Enlarge 65.9?KB Click to Enlarge 47.56?KB Click to Enlarge 50.81?KB Click to Enlarge 51.69?KB Click to Enlarge 45.87?KB Yes, I saw that asbestos. Quote Link to comment Share on other sites More sharing options...
Chad Fabry Posted November 30, 2011 Report Share Posted November 30, 2011 Top photo from left to right: PRV, regulator, back-flow preventer/ check valve, fill valve. Quote Link to comment Share on other sites More sharing options...
Neal Lewis Posted November 30, 2011 Report Share Posted November 30, 2011 Chad, I think you reversed the last two on the right. Fill valve and check to the far right? Quote Link to comment Share on other sites More sharing options...
Chad Fabry Posted November 30, 2011 Report Share Posted November 30, 2011 I think I did it right- there are four items, they're all red: PRV, regulator, back flow preventer aka check valve, and the fill valve. Did I miss something? Quote Link to comment Share on other sites More sharing options...
kurt Posted November 30, 2011 Report Share Posted November 30, 2011 No, I don't think so. Quote Link to comment Share on other sites More sharing options...
Les Posted November 30, 2011 Report Share Posted November 30, 2011 I think I did it right- there are four items, they're all red: PRV, regulator, back flow preventer aka check valve, and the fill valve. Did I miss something? I can name that boiler in three components!* Chad you are right with your description of FOUR components. * likely only seven people will catch this. Quote Link to comment Share on other sites More sharing options...
Bill Kibbel Posted December 1, 2011 Report Share Posted December 1, 2011 I think I did it right- there are four items, they're all red: PRV, regulator, back flow preventer aka check valve, and the fill valve. Did I miss something? Regulator is fine, but we've never used that term. Like the manufacturer Bell & Gossett, I call it a pressure reducing valve. Quote Link to comment Share on other sites More sharing options...
John Kogel Posted December 1, 2011 Author Report Share Posted December 1, 2011 Thanks, Bill. I will file that one for next time, pressure reducing valve in front of a pressure relief valve. (But behind it in the pic). A check valve and that other thing that's not a boiler component. [] I don't have pics of the original circulating pump, but I got the instructions. It needed oil every 3 months and not sewing machine oil, either. SAE 20. Click to Enlarge 91.9?KB Chad, if you had 5 of these pumps in your basement, you could oil a pump every weekend of the year for the rest of your life. Five pumps, each with 3 oil cups, spread over a 3 month rotation, with a holiday. Quote Link to comment Share on other sites More sharing options...
Chad Fabry Posted December 1, 2011 Report Share Posted December 1, 2011 Chad, if you had 5 of these pumps in your basement, you could oil a pump every weekend of the year for the rest of your life. Five pumps, each with 3 oil cups, spread over a 3 month rotation, with a holiday. I tried to get pumps with oil cups, but they're harder to find. Now, I'll never get to wear my engineer's cap. Quote Link to comment Share on other sites More sharing options...
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