Hi Beardo, I weld 2" sched 40 (3.9mm wall) at 95 amps root and cap. Your pipe is only slightly thinner at 3.0mm, I wouldn't go below 85 amps personally. Some pics would help, but make sure you are filling the bevel completely with the root and that you are getting some reinforcement. Keep your ...

What did you end up using a filler?

Hi Jonathan, I have found two articles of interest: This one discusses why 312 filler is likely to cause cracking http://files.aws.org/wj/2006/01/wj200601/wj200601-12.pdf This one gives the right filler to use for 330 to carbon steel http://www.specialmetalswelding.com/products/datash/fm82.pdf You m...

Is this a good safe source? My virus protection went nuts when I tried to look at this url.

Jody, I have a preference for using your lay-wire method after seeing your utube and giving it ago. No pipe welder over here in Oz seems to know about this method. I find it fast and very reliable as long as you get good fit ups as you have said previously. Also keeping the prep angle closer to 30 d...

Steve, So now, of course, I had to check this out. I can confirm the manufacturer's guff does use the word capacitance. Interesting foot note. The say to use conductive thread paste when installing and specifically not to use teflon tape. The sensor is a 2-wire but grounds through the pipe system ap...

Len, The existing switch on the left is a float switch. The new unit I installed in the new column is a level sensor. Not entirely sure how it works but i believe it is conductivity between the sensor element (which looks like a 1/2" × 80" teflon rod) and the pipe column. As liquid rises u...

Update: Finally got around to welding in the control column on site. Sneaked a pic. Column.jpg OK the tie-in was 1-1/4" to 2-1/2" vertical. Holes cut with 32mm bi-metal hole saw (now stuffed). All sched 40. 2 passes. 1st pass 155amps. 2nd pass 165amps. New column held in place with chain b...

Left the full argon bottle open overnight with a perished hose o-ring. Bottle empty in the morning. [ANGRY FACE]

I bet he has got an extinguisher fitted already.
These projects are always a work in progress. I reckon there are a dozen things he still wants to fit including a fold down bunk and a beer fridge. There's room for them!
Awesome!

It's a great mobile work shop. Well done!
I can't quite see in the photo what you've done with the bobcat exhaust. Is that a vent through the roof?

You gotta laugh[GRINNING FACE WITH SMILING EYES]

Steve I just looked up 3/4" xxs. I think it ends up with a 3/8" bore. You wouldn't want to have much root reinforcement would you? Did you get a chance to see the x-rays to see how it turned out?

Exactly my point. If the butt weld has been done right it must be good. We've all heard stories of socket weld joints blowing out due to lack of fillet throat. Maybe these guys who refused to butt weld just weren't certified and running a fillet on a flange is relatively easy as long as you deposit ...

Sure, but if it's done right it must be good. I did speak to a welding inspector about it who suggested they were worried about pulse but even he would not say whether or not I should proceed with the butt weld. I know I'm missing something here but my welds have been in service for 18 months now.

Steve, that looks like a very good flange system and probably good for hydraulics although it leaves you with butt weld joints. Not that it bothers me, I have done 4000psi sched160 butts before with no problems. I have seen hydraulic companies that manufacture power packs and cylinders that refuse t...

That video was great, made me realize My stick out was way to long. So something I have noticed with using fcaw-g and the 75/25 is that it puts off a different taste or smell then my mig wire with 92/8 im used to running, so much so that i feel like its harder to breath around it. It's almost a swe...

I regularly see s/s sheet bonded to frames and other panels such mdf, chipboard, copper, urethane insulation, s/s, steel etc. All done with contact adhesive and sticks like crazy. Peeling it off is really hard work. Applications I've see are kitchen serveries, under bench fridges, laboratory cabinet...

It's no surprise to me that our industry flanges are originally from another industry segment although I have not heard the name "gra-loc" before. We only know them as ammonia flanges and there are several manufacturers around the world that I know of off the top of my head so there probab...

Selecting a plasma cutter It's kind of a bewildering prospect to select a piece of equipment that is new to you with so many manufacturers and models to choose from. How many hours a day do you plan to use your plasma cutter? In other words, what kind of duty cycle must it have? What kind of electr...

Allow me to do it for you.

http://www.millerwelds.com/resources/ar ... ting-tips/

Looks kinda similar huh?

Apologies if I'm wrong but shouldn't there be apostrophes around your posts with maybe a reference to where they came from?

Design pressure is 2.1MPa. (300psi)

Application is refrigeration ammonia. Industry standard for ammonia is that all flanges must have captive gaskets to guard against blowout. These flanges are a true lump of steel to weld onto 1-1/4" sched 40 pipe. I think I cranked up about 160-170amps on the pedal for the second pass. Most pip...

Vision did not get really clear and sharp for me until I put a standard green glass lense into my $10 bucket helmet. Haven't used anything else in a long time. Cheeter lense fits as well.