Yong heng filling 60 minute scba from empty

[Heavyopp]

Happening now, kind of a proof of concept fill/run for my yong heng. Cobbled together a setup with radiator water cooling and some electric fans.

I picked up 2 60 minute scba tanks off ebay. Seller emptied them before shipping. How long will it take, gonna see if I can find a stable temp for the compressor and just ket it run.

 

[Heavyopp]

I pulled the fan and the capacitor out of the Yong Heng for better air flow. Bought a large, high flow axial fan to blow air through the compressor and onto the cast iron head.

 

[Heavyopp]

25 minutes into run , almost 100 bar in tank, Yong heng temp 49.9 degrees celsius

guess I’m going to have to shut down and cool if I break 50 degrees

 

[allinssd]

Holy smokes that's a setup! hahaha. I like it, keep us posted

 

[allinssd]

25 minutes into run , almost 100 bar in tank, Yong heng temp 49.9 degrees celsius

guess I’m going to have to shut down and cool if I break 50 degrees

You ever ran it for 25min before? If so what was the temp compared to now?

 

[Heavyopp]

28 minutes, I shut down for a cool down — 50.8 degrees in the head

108 bar in the tank

 

[Heavyopp]

You ever ran it for 25min before? If so what was the temp compared to now?

This is my 1st run setup like this, was hoping the Yong Heng would reach a happy temp under 50 — didn’t happen

 

[Heavyopp]

I’m in my garage, temp is 58 degrees F — Yong heng is down to 20 degrees C thats 68 F

fans are running, water pump running

Gonna start back up

 

[Buckshutr]

I just ran my new Yong Heng for the 1st time. Filled my 74 cu ft tank from 0 to 300 bar in about 1 hour. Never went over 43.8C. I put a high volume fan behind it and an upgraded water pump sitting in a sink that I run cold well water into.
Then I topped off my son's tank from 200 to 300 bar in 23 minutes. 43C for entire run. Really happy with the pump.

 

[Heavyopp]

I’m running from a bucket, through the head, through the cooling radiator, and back into bucket.

No Ice.
water going back into bucket is just warm to the touch.

I’m at 44 minutes run time, 170 bar in the tank, temp on gauge is 51.1C

 

[Heavyopp]

61 minutes run time, 240 bar in tank, temp 52.8 degrees celsius

been running 34 minutes straight now, temp still rising but slowly, water is getting warm in the bucket maybe 105degrees F — don’t want to leave to get a thermometer to measure water temp.

 

[Heavyopp]

1 hour 18 minutes — 300 bar in a warm, 60 minute scba. Not sure how far it will fall as it cools.

Yong Heng temp, reached 54.8 degrees celsius — probably didn’t need that cool down at 50 degrees — was just a 5 minute cool down.

fans are running, water pump is running — probably give them another 10 minutes

 

[IMADMAN]

What oil are you using? You going to do another run with ice in the water?

 

[Heavyopp]

Seco lube oil

I do have another empty 60 minute tank — I do not plan to use ice, I’m wanting to set this up as a closed system, put something together a little neater. This was kinda a test run, proof of concept run.

This run actually started with room temp water also, I filled my bucket last night while setting up. It just got too late to run last night.

I’ll get water temp measurements on the next run. Hopefully tomorrow night.

 

[wdr2]

Heavyopp - where did you get the radiator? Do you have a purchase link? Looks like a fine setup.​

 

[Gerry52]

I've NEVER run my YH longer than 20 minutes without a cool off break. DON'T start or stop under pressure. If you're impatient with a YH you can kill it. Once you get your tanks filled don't let them down below 3,000psi so all you have to do are "top offs". Your compressor will thank you for it.

 

[JimD]

Your setup looks interesting. Are you only using the air filter that came with the YH? If so, you should probably invest in at least a small additional filter with dessicant in it. I arrange my filters to be above the YH so any water that condenses going through the filters will flow back to the YH were I vent it every 5 minutes. That seems to really help the color change dessicant see very little water.

I got a few brass connector pieces for the cooling lines on the YH and drilled holes slightly undersize in the lid of a bucket. That and running the electric through the lid let me close up the bucket. I have distilled water and water wetter in the system.

To save counter top space I have the bucket with the radiator under the counter the YH is on. That made the coolant lines pretty long and I noticed they were kinking raising the second stage temperature pretty fast. I swapped then for brake line hose. It seems to be a lot more robust and has solved the kinking problem.

I top off my 45 minute SCBA from around 3000 psi to 4000-300 bar in about 15 minutes run time. In the winter no ice is needed to stay under 60 C. But in the summer sometimes I open the bucket and put 3 frozen soft drink bottles in the water. That really helps the temperature stay low. When the YH started not getting to 300 bar in 15 minutes and/or wanting to go over 60 C I replaced the O ring that is close to the reed valve. That pushed my fill time/pressure back in the right direction. I can now get to about 300 bar in 15 minutes again. I prefer just settling with a 4000 fill to making an additional run.

 

[Heavyopp]

made a few small changes - added another fan to the radiator setup
removed the handle from the yong heng to promote better airflow over the cast iron head

tank has cooled and is now around 275 bar — gonna top it of

starting water temp is around 55 degrees - room temperature, same water as last nights run

 

[Heavyopp]

6 minutes to top off from 275 to 300 bar
Yong heng temp 42.8 degrees cesius — water temp no noticable change in bucket, water temp at output of radiator was 59ish, so maybe 4 degrees warmer than the bucket water on this short run

 

[Heavyopp]

Jimd I’m running the cheapo yong heng tampon filter into a joe brancatto water seperator/filter — has both desicant and carbon filtering media inside. Also a device built in to raise the pressure to 140 bar inside the filter before it allows air to pass, this promotes water seperation. Drain every 5 minutes or so. Also has a check valve so tank doesn’t drain air backwards.