Harbor Freight Air Vacuum Pump

[7miles]

Hey guys, could someone please tell me what the difference the blue vac pump pictured in this link from HF http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=92475
and the red one I see everyone using? The red model is no longer available. If there is a diff, can the blue one be used. to draw vac down on HF's PP for dying, casting and, stabilizing?

If no, does any one know of one that will work, or have the red one they would like to sell?

Dale

 

[sbell111]

The blue one has a R134a fitting while the red one had a R12 fitting.

 

[gketell]

Which doesn't matter at all since you will be removing the fittings anyway.

for our purposes, the only difference is the color of the paint.

GK

 

[7miles]

Thanks guys, just ordered it

 

[karlkuehn]

I think the insurance for the red one is a little more expensive, since it goes faster. []

Sure hope you don't have a teenage boy going to be running it. The rates go through the roof, then!

 

[jwoodwright]

Dale, The 134A fitting isn't used, it's removed. It's original purpose was to hook up to air conditioning systems.

It's just a venturi in there. Compressed air enters, the pipe has a narrowing and this narrow section has a port. Thus vacuum is created by your compressor.

For us old timers, just like emptying a water bed. Water flows through the venturi and the water inside the mattress is removed...

 

[ones]

Dale, here is the gauge I ordered:
MSC Direct -30 - 0 - 100 vacuum/pressure gauge
http://www1.mscdirect.com/CGI/NNSRIT?PMPXNO=1953302&PMT4 NO=22417569

 

[loglugger]

Ones, looks like that one will be easy to read.
Bob

 

[Jarheaded]

The R-134 fitting mated up with the air fittings that I have on my pots with out having to change any sizes.

 

[GoodTurns]

Originally posted by Jarheaded

The R-134 fitting mated up with the air fittings that I have on my pots with out having to change any sizes.

right up until he hit it with the .50 cal!