I want to be trained how to weld ^>^ that shit is so worth knowing.
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Do what I did: buy a welder and weld until youâre good lol
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This is what Iâm about to do lol
And have a buddy who welds for a living (and loves free oil) show me the ropes when he has timeâŚ
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No substitute for practice. It helps to have someone give you a couple tips just to show you what youâre looking for. Then grab some pipe and get to work. When youâre confident in your open root 6g, send it to a testing company and have them pull it.
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Welding is something I definitely want to get into myself⌠Iâve been thinking about it for a year, or two. I have experience working with hot air re-work stations for soldering up pcbâs/etc
Globe valves on a stainless water transfer pump that has a stainless impeller. Full flow control
Just put the globe valves on today and tested them. Itâs so fucking sick!!!
FUCK SUBMERSIBLES!!!
Because I use like 4 lbs of salt with 3lbs of dry ice the submersibles just shit out after a while because of too much salt. This thing just says whatever and moves the water
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If you can, only restrict the outlet and your pump will thank you. Restricting the inlet can cause cavitation from the low pressure in the impeller and it will potentially hurt the seals
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Out feed is truly all that needs it. Arent jet pumps solid? Had to thaw mine out because water froze inside it. Sheâs purring again
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I tested it with dry ice/super salt water last week but didnât have the valves to control the flow. No freezing issues.
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I had the inlet open all the way and tried to regulate only the outlet and i was getting some flow issues. I got a more steady flow regulating both.
Edit: youâre right; though, I do feel more safe regulating both the input and output as it starts up.
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Itâs not really a big deal, certainly not a safety issue just a little pump general knowledge.
On another note, she RIPS. Only ran for about 15 minutes tonight, have a few good vacuum leaks to fix still but we clocked around 40 lph. Weâll see if itâll do 60 when the leaks are fixed and the feed is preheated
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UPDATE: on the pump. Believe it or not it heats up the water. I think I should just look into a glycol pump by now.
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What kind of chill capacity you got going to the setup?
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I think im gonna go with something like this. Definitely gonna find something cheaper though.
The grey schedule 80 pipe overhead goes to our central chilled water plant which is 215 tons. Itâs only a 1-1/2 pipe into the lab though so somewhere around 30-40 ton capacity split between this and the rest of the lab
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Any pump is going to add heat to the working fluid, itâs an optimization. Typically centrifugal pumps are around 70% efficient (thereâs a really wide range depending on a bunch of factors), which means 30% of the electrical draw of your pump might as well be a heater. Bigger pump means more heat but it also means better turbulent flow and delta-t which make for better heat transfer.
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What would you suggest doing to counter the heat from the water pump?
Only two options there: smaller pump or more ice
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you know they went through the ceiling, and then the roof with their FFE out in YerringtonâŚ
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The good news is that we have 24 feet to the bottom of the next floor above that drop ceiling. The bad news is that the floor is 18" thick concreteâŚ
On another note for those who may be watching, we kinda goofed. The vapor holdup is insane. I think Iâm going to spin the whole unit so the vapor feeds from the top of the condenser which should have been a very obvious thing to do. Oh well.
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