Coil

[Sirocco Jerry]

Competitive at doing a good job, is honorable business.

I have some great news to report. Pressure Pro sent a brand new coil assembly to me. The replacement is such an improvement in design compred to the original one. I am thrilled and going to give it a shot in a bit to see how it works out. I also posted a photo of the old coil taken apart, the coil itself is smaller than a rats turd.

Good job Pressure Pros !
I don't often get a reason to praise my competition,
but I'll say here and now, THAT's the way to treat a customer !
Good job guys !
"healthy competition" is good for an industry..
Competitive at doing a good job, is honorable business.
ALL manufacturers AND service centers, should "belly-up" to the responsibility of
customer service, and "the pursuit of" long-term-low cost.
It's called craftsmanship, and workmanship. eh?
Respect a tech,
and demand quality..
it will "facillitate you" out of this recession !

..I mean.. the guy that bought cheap, is broke down enough of the time,
it's easy for reliability to take his customers away !
THINK and grow rich !

anybody want to invest in more Work-Speed ?? ..

 

[mattspws]

Take a look at this coil. Its about 8 months old now and has quite a few hours on it but look at the inner ring. I am partictularly unhappy with this unit itself however the other PP skid i have has been great. This one has just been a demon. Motor shot first, 4-5 pressure switches, packings, coil sooted up really bad, a transformer, and now seems a solenoid is bad as well. I would love to spend another 5k on top of the 6500 to have a machine that would not always tear up. Any thoughts on a machine that will not give so many problems or do I just have the dreaded lemon

I've got a pressure pro machine doing this same exact thing. Why would they make the whole burner out of stainless steel then put regular old sheet metal rings and baffles in it ? They had to have known that the heat generated inside that burner was going to eat that up.

 

[Russ Johnson]

Stainless doesn't play well with extremes of heat. The molecules in carbon steel expand and contract at an even rate. Stainless expands at different rates along the item being heated. MiTM made coils out of stainless tubing with stainless baffles welded into them. The tubing expanded at a different rats from the baffles, so they just tore loose. Carbon steel is definitely the way to go in a combustion chamber.

 

[mattspws]

Russ before doing this I worked in machine shops all my life. Even worked in an FAA repair facility for aircraft exhaust, we made new and overhauled exhaust parts for Piper, Cessna, unmanned drones, we even made air to air heat exchangers for the F-15 strike eagle. Everything was made from stainless, the company slogan was "Built to take the heat". I'm not doubting what your saying, but I've never heard that before.

 

[Sirocco Jerry]

stainless steel coils

Stainless steel coils are available..
You just don't want to have to pay for one..
We've built several SHE's (Stationary Hot Electric driven units)
with stainless coils for the food processing industry..
NOT stainless tubing, like MiT-M had years of nightmares with.
I'm talkin' stainless pipe.. 5000psi rated, sch80 stainless pipe.
They are ALL still in service, the oldest is about 20 years old..
If it won't rust, it won't decompose.
If you want that kind of long-term-low cost..
just add about $2000. to the cost of a typical unit, and there you have it !
note.. We also atribute our success in lifespan of these coils to the fact that we have a VERY-tight control sysytem..
they can't "over-pressure",
and they can't overheat.
Beefy is the material, reliable is the control system..
you'll need BOTH.

one more thing..
about the baffles in the center of the coil..
we make them double-thick..
and we get 3 times the lifespan because of it.
even on our standard steel coils.
nuf said.

 

[welder]

Stainless doesn't play well with extremes of heat. The molecules in carbon steel expand and contract at an even rate. Stainless expands at different rates along the item being heated. MiTM made coils out of stainless tubing with stainless baffles welded into them. The tubing expanded at a different rats from the baffles, so they just tore loose. Carbon steel is definitely the way to go in a combustion chamber.

Plus 10 on what he said.

When it comes to aircraft parts, the grade of stainless is different than what is typically used in everything else. Machined parts bolted together handle heat a lot different than welded parts.

Then again, What do I know about welding coils?