Duty Cycle of Coltri Icon LSE 100?

[Tracy]

I thought we had all moved on from using paintball shoebox crap and two stage fish tank cooled contraptions from the Hu Flung Dung Compressor Corporation out some back street chop shop in China. Looks like a new contender for bottom of the barrel export import in the good old USA is in town.

Don't be mocking my fish tank intercoolers.
I actually did make geothermal intercoolers for my large LP compressor and they work phenomenally.

 

[Agro]

It does not matter at all what engine is put on a Coltri MCH6 frame. The compressor lastes for about 50 hours then it starts breaking away. Any petrol engine will survive this.

Or we can put it like this: a high-end engine does not make sense at all on a Coltri frame.

 

[Wallowa]

One Brit and one Swiss both repeatedly post disparaging comments about the Coltri MCH-6 and perhaps all Coltri products...but you know what? Thousands of them in use and your constant negative rants serve no purpose....suggest actual alternative lightweight portable compressors that common folks can afford but why continue to attack rather than contribute meaningful information?

50 hour compressor? Yeah right.

 

[tbone1004]

Unfortunately this compressor came bare bones without bells & whistles like hour meter, auto drain, or even a PMV! I had to add my own hour meter last year ($17 on Amazon). It was ridiculous what Coltri wanted for just the hourmeter after the purchase, or maybe the shop marking it up. It even has a 2nd timer mode for separately keeping track of oil & filters, etc. With some careful layout it can look factory installed. These are all options that have to be ordered with it. I'm sure I'd get more hours out of my filtration if a PMV was installed.

Initially I was excited that I lived only 30 minutes away from the US Coltri distributorship plus commercial & recreational dive shop. I bought what was on hand but regret not paying less for more options for the same compressor from Nuvair, completely across the country. I'm sure I still would have been ahead of the game paying cross country shipping from Nuvair.

I'm not sure what post I made here that was misleading, indicating that I proceeded ahead with 100% duty cycle without doing my homework first or making inquiries (such as my "attempt" here). In fact I provided here many of the clues that lead the very answer I was seeking about duty cycle, once I dug up pics from last year of name plates, etc. I ALWAYS do my research first, usually in more detail than many. One can't spend decades working in an industrial environment without seeing what makes things wear out prematurely or what makes them function for many years.

Please do not breathe any air coming out of that pump until the PMV is installed... It is not just hours on the filter, if the PMV isn't installed then there isn't enough dwell time in the stacks to adequately filter the gas, there is a reason they are put on there. Very seriously, please do not breathe any gas out of that pump until a PMV is installed, it is a critical piece of safety equipment for a breathing gas compressor

 

[Wallowa]

Please do not breathe any air coming out of that pump until the PMV is installed... IT is not just hours on the filter, if the PMV isn't installed then there isn't enough dwell time in the stacks to adequately filter the gas, there is a reason they are put on there. Very seriously, please do not breathe any gas out of that pump until a PMV is installed, it is a critical piece of safety equipment for a breathing gas compressor

Thanks...that is good to know. Never considered dwell time but that makes sense....

 

[tbone1004]

Thanks...that is good to know. Never considered dwell time but that makes sense....

the filter life issue is the scariest part. The PMV maintains pressure that helps a lot of the moisture to be knocked out of the gas. With that moisture comes the oil and other particulate contaminants in the breathing gas that never actually make it to the filter because they are removed by the moisture separators. The more the moisture separators do, the less the filters have to do, but moisture is the #1 killer of filters since they don't work when wet.
The dwell time is interesting too though. For easy math and all of this is just an example. Say the compressor is 1cfm and the filter towers are 1cf in volume. If the compressor is pumping at 50bar/700psi, then there is 50cf of gas inside of that filter and it would take 50 minutes to fully change that gas over. If we put a PMV on the compressor set to 150bar, then even though the tank is getting 700psi, there is not 150cf of gas inside of that filter housing and it would take 150 minutes to turn over. That's a LOT more time that the gas is hanging out and interacting with the filter media because it is moving slower through the tower which makes the filters much more effective.

So the PMV makes the filters more efficient by allowing more contaminants to be removed by the water separators, then makes them more effective by giving them much more time to do their job. CRITICAL safety component to a breathing gas compressor. Also a super convenient one for a LP shop compressor if you're doing HVLP work because a PMV on the tanks will let the gas cool down and a lot more moisture knocks out in the tank which keeps your paint guns and sand blasters much happier.

 

[Agro]

50 hour compressor? Yeah right.

Yes. I had two MCH6 Coltri compressors, both failed after about 50 hours. Stage no. 4 brought oil, completely dammaged. Piston no. 3 was dammaged as well. On first compressor I thought it was bad luck, after broken 2nd compressor I knew it's a lousy compressor.

A friend of mine had 2 Coltri MCH6 too, same experiences.

 

[Wallowa]

the filter life issue is the scariest part. The PMV maintains pressure that helps a lot of the moisture to be knocked out of the gas. With that moisture comes the oil and other particulate contaminants in the breathing gas that never actually make it to the filter because they are removed by the moisture separators. The more the moisture separators do, the less the filters have to do, but moisture is the #1 killer of filters since they don't work when wet.
The dwell time is interesting too though. For easy math and all of this is just an example. Say the compressor is 1cfm and the filter towers are 1cf in volume. If the compressor is pumping at 50bar/700psi, then there is 50cf of gas inside of that filter and it would take 50 minutes to fully change that gas over. If we put a PMV on the compressor set to 150bar, then even though the tank is getting 700psi, there is not 150cf of gas inside of that filter housing and it would take 150 minutes to turn over. That's a LOT more time that the gas is hanging out and interacting with the filter media because it is moving slower through the tower which makes the filters much more effective.

So the PMV makes the filters more efficient by allowing more contaminants to be removed by the water separators, then makes them more effective by giving them much more time to do their job. CRITICAL safety component to a breathing gas compressor. Also a super convenient one for a LP shop compressor if you're doing HVLP work because a PMV on the tanks will let the gas cool down and a lot more moisture knocks out in the tank which keeps your paint guns and sand blasters much happier.

Just checked again....all Nuvair MCH-6 compressors they sell have a PMV installed...the one on my Icon is rated to 6,000 psi and outlet pressure is maintained at 1,900 psi.....all this is above my pay grade...but again thanks for explaining the logic....

This explains benefits of PMV...+450% on filter....

Back Pressure Regulator 6000 psi 1/4" FNPT to 1/4" MNPT

Aqua Environment anodized aluminum back pressure regulator, 1/4" FNPT to 1/4" MNPT. Maximum rated pressure: 6000 psi (414 bar). Fixed outlet pressure: 1900 psi (131 bar). In operation the back pressure regulator maintains its set pressure upstream and allow just enough gas flow to hold this...

nuvair.com

 

[iain/hsm]

Just checked again....all Nuvair MCH-6 compressors they sell have a PMV installed...the one on my Icon is rated to 6,000 psi and outlet pressure is maintained at 1,900 psi.....all this is above my pay grade...but again thanks for explaining the logic....

This explains benefits of PMV...+450% on filter....

Back Pressure Regulator 6000 psi 1/4" FNPT to 1/4" MNPT

Aqua Environment anodized aluminum back pressure regulator, 1/4" FNPT to 1/4" MNPT. Maximum rated pressure: 6000 psi (414 bar). Fixed outlet pressure: 1900 psi (131 bar). In operation the back pressure regulator maintains its set pressure upstream and allow just enough gas flow to hold this...

nuvair.com

Are we going to get the Honda engine build number off you at any point soon?
We asked a number of posts ago. It's stamped on the engine block just under the petrol tank you can't miss it. It will be stamped GX200 then a three or four digit set of letters and or numbers. Then we can add the duty cycle for the petrol option on your I-Con to the thread and any potential customer can have a full specification of what they are expecting rather than limiting the choice for others with your fancy colour photos and simplistic catalogue brochure knowledge.

 

[Wallowa]

Are we going to get the Honda engine build number off you at any point soon?
We asked a number of posts ago. It's stamped on the engine block just under the petrol tank you can't miss it. It will be stamped GX200 then a three or four digit set of letters and or numbers. Then we can add the duty cycle for the petrol option on your I-Con to the thread and any potential customer can have a full specification of what they are expecting.

Seriously? Pander to you? Why would I respond to such a toxic person? How farcical to think you are sincerely concerned with anyone wishing to purchase the MCH-6 Icon. Just more grist for your slander.

You said they only came with a GP100 and of course the ICON does come with GX200. Anyone purchasing the Coltri MCH-6 Icon can ask questions of Nuvair [Ron] here in USA. The irony is that either the GP100 or the GX200, that I have, is perfectly fine for a portable, light weight compressor. Honda makes great motors.

You really do like the sound of your own voice.............