Good layout on the safety valve. A better job than I have seen in many commercial installations. There is no need for pipe dope after the valve, though. It shouldn't pop other than for a test unless there is a problem, and it carries no pressure, and steel to brass seals fairly well without dope even with pressure. General info: Putting the dope on the female thread is a big no-no, though. It may get shoved ahead on assembly and end up in the system or foul a valve. When heating season is over and you go over the system, I'd pull the safety, flush it, and reinstall. There WILL be additional corrosion from the makeup water, so treatment should be done once the flushing and basic air bleed is sufficient. Boilers (Hydronic water systems are in the same class, though they are not boiling the water, and fall under the same rules, since they can work at temperatures above the boiling point at atmospheric pressure, and work at pressures above atmospheric) are self consuming from the inside unless they NEVER need make-up water, and even then from the outside. The treatment keeps things in check. Where different metals meet is the worst (copper lines to steel, steel to cast iron radiator, wet steel fitting to brass/bronze, and so on) General: The safety valve is designed so that as i begins to lift, the area exposed to pressure increases so as to insure a positive pop open it is really called a pop) and must have a pressure drop before it can close. This prevents it singing or slow leaking, if in good nick, and reduced the risk of the seats and seals from cutting. A bigger issue in a true steam system, but a hydronic system may be hot enough for the water to flash at the safety if it opens.. There are a lot of types of dope. Traditional white lead (in a drying oil), to teflon suspensions (in a drying oil, non-drying oil, or evaporative carrier), to a variety of polymers, some of which cure hard, some of which do not.
Yeah I just added dope to the parts past the valve in case the pipe leaked a tiny bit because water will technically pool under the threads. Figured it couldnt hurt. Also I flushed water through the safety valve quite a bit afterwards, is that basically the same as the flushing you mentioned?
@@RinoaL Ya, but flushing with the valve off you can be sure there is no dope or crud up into body and the seat. It takes little to hang it open or hang it up and prevent proper operation. Any dope hanging out into the flow will usually sit there, unless the flow rate is high, like when the valve pops. Then bits may come free. The dope on the outlet side hurts noting, but makes it messier/more difficult to service later. A little teflon tape is sufficient there to prevent galling. Really nice job on the spillway mortar, by the way. That would be hard to do that cleanly even without the awkward. Stay warm.
Cast iron radiators are the best because they continue to emit gentle heat after the boiler shuts off. The radiant heat also tends to heat the spaces better in homes with little or no insulation that are drafty.
if i tried to get in that room id never be able to get back out! my fat ass would be stuck in there forever! lol I hope you 2 are good and as always a fantastic vid as always i learned a lot thank you.
those old cast iron boilers can last practically forever - too bad they're only 50 to 60% efficient seasonal average including cycling and standby loss. about 80% efficient when running continuous
@RinoaL Interesting, I heard that many times myself, but maybe on the other side of the globe, there's particular obsession over veins. Keep up the good work, though!
Great work. Those repairs will def extend the life of the heating system.
Good layout on the safety valve. A better job than I have seen in many commercial installations. There is no need for pipe dope after the valve, though. It shouldn't pop other than for a test unless there is a problem, and it carries no pressure, and steel to brass seals fairly well without dope even with pressure.
General info: Putting the dope on the female thread is a big no-no, though. It may get shoved ahead on assembly and end up in the system or foul a valve. When heating season is over and you go over the system, I'd pull the safety, flush it, and reinstall. There WILL be additional corrosion from the makeup water, so treatment should be done once the flushing and basic air bleed is sufficient. Boilers (Hydronic water systems are in the same class, though they are not boiling the water, and fall under the same rules, since they can work at temperatures above the boiling point at atmospheric pressure, and work at pressures above atmospheric) are self consuming from the inside unless they NEVER need make-up water, and even then from the outside. The treatment keeps things in check. Where different metals meet is the worst (copper lines to steel, steel to cast iron radiator, wet steel fitting to brass/bronze, and so on)
General: The safety valve is designed so that as i begins to lift, the area exposed to pressure increases so as to insure a positive pop open it is really called a pop) and must have a pressure drop before it can close. This prevents it singing or slow leaking, if in good nick, and reduced the risk of the seats and seals from cutting. A bigger issue in a true steam system, but a hydronic system may be hot enough for the water to flash at the safety if it opens..
There are a lot of types of dope. Traditional white lead (in a drying oil), to teflon suspensions (in a drying oil, non-drying oil, or evaporative carrier), to a variety of polymers, some of which cure hard, some of which do not.
Yeah I just added dope to the parts past the valve in case the pipe leaked a tiny bit because water will technically pool under the threads. Figured it couldnt hurt.
Also I flushed water through the safety valve quite a bit afterwards, is that basically the same as the flushing you mentioned?
@@RinoaL Ya, but flushing with the valve off you can be sure there is no dope or crud up into body and the seat. It takes little to hang it open or hang it up and prevent proper operation. Any dope hanging out into the flow will usually sit there, unless the flow rate is high, like when the valve pops. Then bits may come free. The dope on the outlet side hurts noting, but makes it messier/more difficult to service later. A little teflon tape is sufficient there to prevent galling.
Really nice job on the spillway mortar, by the way. That would be hard to do that cleanly even without the awkward.
Stay warm.
Cast iron radiators are the best because they continue to emit gentle heat after the boiler shuts off. The radiant heat also tends to heat the spaces better in homes with little or no insulation that are drafty.
can get the same effect with properly sized 2-stage or modulating forced air furnace as well as inverter heatpumps. very long cycles.
if i tried to get in that room id never be able to get back out! my fat ass would be stuck in there forever! lol I hope you 2 are good and as always a fantastic vid as always i learned a lot thank you.
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Looks like yoi did an excellent job , do you put inhibitor in the rad water in the US?
we have that available but we plan to add it in spring
Need some inhibitor in that rad system after a drain down. A good flushing would help also
Yeah I plan to add some this spring.
Hydronic Boiler, is what we always called them. Hydronic boilers pump water, Steam boilers made steam
Ah so thats the term, interestinf
those old cast iron boilers can last practically forever - too bad they're only 50 to 60% efficient seasonal average including cycling and standby loss. about 80% efficient when running continuous
If I guess one thing you've heard not only once in your life (probably from nurses) - it's going to be: "such nice veins"
I've actually never had that said to me before tbh.
@RinoaL Interesting, I heard that many times myself, but maybe on the other side of the globe, there's particular obsession over veins. Keep up the good work, though!
Rinoa in no stretch super skinny jeans i would like to see that picture
I just realized you’re the same person who said skinny jeans in the other comment. I thought I had two different viewers thinking I said that lol
i miss heard you first time i thought you said you wear going to do skinny jeans again
Hah that is a mishearing and a half
@@RinoaL Rinoa in no stretch super skinny jeans i would like to see that picture
First