Not sure what the thread size or type is called on the hoses at the ends opposite the gage set.

Where's the fun in that? The tender mercies of the bureaucrats decide who is punished and who is given lenience. Usually In Stock

Edited: Fri October 09, 2009 at 8:30 PM by grtpumpkin.

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?I see your link now.

Note that R-12 and R-22 react chemically with the PAG oil used in factory R-134a cars and form a sludge. Realize that R-22, R-12, and R-134a all have completely different properties and must never be mixed in a system, it simply will not work.

Odds are your gauge set is for R12 and the tank is threaded for a R134a charge hose.82634 - Service Port Adapter -------------------------, The fitting on the tank is the same exact fitting as on all 3 lines at the gage set end.

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here.

It works better in the long run to just buy another manifold and dedicate it for R-22/R-12 service than to keep messing with adapters.

R12 and R22 share the same size fitting. A car using R-134a is running an HFC. The gage set is for R134a. In either case it is a 1/2" ACME thread fitting.

It will be for either R134a or R22.

The law makes us all criminals, even for things like cutting metal.

It's the mouth breathing politicians who wrote the impossible tofollow laws the bureaucrats are trying to (selectively) enforce who*are* that stupid. Cylinders of R-134a sold for automotive use have 1/2 inch acme threads.

Usually ships in 24-48 hours

-- You can't have a sense of humor, if you have no sense! My gage set has thread on snap fittings to allow connecting to the Hi & low sides of the vehicle.

MK378,Thanks for your input. The thread on your cylinder fitting, like most 30 lb cylinder fittings, is known as 1/4 inch flare.

You could just put a couple of car conversion fittings on your house system and connect the snap on fittings to it but that is asking for trouble. | Privacy Notice, Features and Benefits: 12V 3/8" XTREME COMPACT OPEN HEAD RACHET BARE, Features and Benefits: Pallet of 17 units, Features and Benefits:Safety Glasses, 4 x 4, Wraparound Four-Sided Bla, Applications include Work Light, Camping, Hunting, Nightlight, Car Repair, Emerg. The service fittings permanently installed on the vehicle orstationary system, yes.

Pleaseenlighten me!

I want to be able to hook up my gage set to these piercing valves and do some diagnostics.

That way you can isolate thesystem with a ball valve and shut off the vacuum pump, and monitor thevacuum levels for leaks and/or trapped moisture still evaporating fromthe refrigeration oil.

All logos and trade names are the property of their respective owners. The valve depressor in a hose will not pose a problem making up to a fitting that has no shrader valve.An automotive R-134a manifold set interfaces to the car with snap on quick connect fittings and to the vacuum pump or refrigerant cylinder with acme fittings. You do not have permission to delete messages in this group, Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message, I want to recharge the refrigerant in my auto air conditioner.

snipped-for-privacy@gmail.com wrote in news:a7fd83ff-db9e-4978-af08-7d8e10f86a79

If not your going to need You can obtain a T handle valve stem tool at any auto parts store.

Thus the different fittings.

One little project I'm working on is a Home window unit that seems to have recently lost it's charge.

1/2" Acme as I recall but I don't remember the pitch, sorry!

Beware you don't commit an EPA felony. Automotive Specialty Tools > Auto Air Conditioning Tools > Hoses > R134a Hose Set w/ 1/2 In ACME-F and 14mm-M Auto A/C Fittin, R134a Hose Set w/ 1/2 In ACME-F and 14mm-M Auto A/C Fittings.

Set includes one blue, one red and one yellow hose. The EPA via the Clean Air Act regulates what fittings can be used with what refrigerants.



Have to make sure it gets back in that box or will never find it again.

Is there a fitting to convert from the 1/2 " ACME directly to the snap fittings of the R134a?

Anybody else experiencing this? Just trying to adapt it to mate to the yellow line from the gage set or to my vacuum pump.

I don't agree with the despotism of the government, I'm just warning you. Guy,Does the print REQUIER rolled thread? Cylinders don't have shrader valves in the fitting, they are turned on and off with the hand valve. I thought R12 and R134a were the same. True, It is a shame that the Constitution was written by folks who feltthat serving in government was such a PIA that nobody would WANT to doit.

Charging Hose Set w/ Auto Shut Off Fitting - 72 In, Charging Hose Set w Auto Shut Off Fitting - 96 In, Two-Way Aluminum Metric Manifold Gauge Set w/ Hose, Brass Manifold Set Shock Resistant w/ 72 In Hose - R134a, R134a Charging Hose Set w/ 1/2 In Acme-F & 14mm-M Auto A/C Fitti, Low Side Manual Coupler for R134a - 1/4 Inch FL-M x 13mm, High Side Manual R134A Quick Coupler - 1/4 In FL-M x 16mm, R134a Hose - Blue 14mm-M x 1/2 In ACME-F - 36 In, 12V 3/8" XTREME COMPACT OPEN HEAD RACHET BARE TOOL, With 1/2" ACME-F and 14mm-M Auto A/C Fittings. @googlegroups.com: Well we noticed this really old thread and see that it still gets lots of hits on Google. Casting.

They don't have to be"government approved". Mastercool 82934-E Low Side Manual R134a Quick Coupl Patented manual couplers adjust easily to R134a service ports with varying dimensions.All metal construction for extra durability.Patented, spring loaded depressor will not damage service valves.Can be removed from service ports regardless of knob position without losing refrigerant.Meets SAE, UL and EPA recommendations for containment of refrigerant.Color coded.1/4 In FL-M x 16mm quick coupler. This is on a 30lb tank and has no valve core.

Brass Manifold Set w/ 72" Hose - R134a Wth shock-resistant gauge protector.Hose connections for blue and red are 14mm-M.Yellow hose is 1/2" ACME-F with auot shut-off valves.Gauges are 2-1/2" in PSI/Kpa.With manual couplers.

All in all it would be much easier to go out and buy a new air conditioner.



It is for R134A and R22 systems?

M Patented manual couplers adjust easily to R134a service ports with varying dimensions.All metal construction for extra durability.Patented, spring loaded depressor will not damage service valves.Can be removed from service ports regardless of knob position without losing refrigerant.Meets SAE, UL and EPA recommendations for containment of refrigerant.Color coded.1/4" FL-M x 13mm quick coupler.

That means these system have a greater sensitivity to moisture and other contaminants, making thorough evacuation more important than ever before. > They don't have to be "government approved". No? So if anyone is still looking https://www.polytechforum.com/metalworking/r134a-thread-size-185313-.htm.

I'm actually also going to be working on an R22 system for the house and I would like to connect my gage snap fittings to it.

Leaving the adapters off makes it compatible with R-12 systems and cylinders.The adapter from a acme hose to a flare vacuum pump is commonly available, it will also work to connect cylinders.

What is needed to adapt this to my yellow hose?

But I can't figure out what the thread size is on the R134a. It won't fit anything other than old GM cars.

Such adapters are not government approved. PO Box 149

Do you have a work-around? They typically have flare fittings on all 3 hoses but are supplied with 3 adapters for work on R-134a cars.

Moisture in an refrigeration system, directly or indirectly, is the cause of most problems and complaints. Does it covert screw on to snap fit?Adapter 90338, That is used only on some of the last of the R-12 cars made by GM, 1991 to 1993 models. The end of the fitting is flat rather than conical. I plan on machining an>> adapter to get the 2 fittings connected to each other.>> >> But I can't figure out what the thread size is on the R134a.

This would explain some confusion.

They have in-stock adapters to go from NPT pipe thread to 1/4" SAEFlare (HVAC and Refrigeration charging hose fittings) 3/8" SAE Flare(manifold to vacuum pump hose connection) and 1/2" Acme Flare (R-134aAutomotive Manifold hose fittings). Often wondered about these alternative refrigerants, they sell their magic cans of stuff with different fitting on those plus adapters for your MVAC fittings, but don't sell anything for your gauges so you can hook up to them.But I think this is what your are looking for.But don't ask me where I got it from, have so many electrical, electronic, and gas adapters, my brain is like scrambled eggs. Manufacturer Direct, ToolSource > 3 - There are some things even a rat won't do.

If you are adapting an industrial vacuum pump, you'll have tobushing down from 3/4" NPT down to the threads needed for the adapter.

I am getting a new plasma cutter.

One for the low & high side. Which is why politicians are like diapers - they> need to be changed often, and for the same reasons.> > --<< Bruce >>--. If you do a conversion from R12 to R134a oranother refrigerant you have to change the fittings to the properstyle to avoid accidentally mixing refrigerants.

No chlorine.

GM used a proprietary "deep throat" fitting on the high side. This is getting confusing.

I have decided on HyperTherm ONLY. I've.

I also need to connect the yellow line from the gage set to my vacuum pump. These threads are larger diameter and coarser thread pitch.

Don't reinvent the wheel by machining the fittings, it's silly towaste $100 to $200 of your time on a $5 part - you only do that whenit's made out of pure Unobtanium Go to any refrigeration supplyhouse or search online.

My vacuum pump>> is outfitted with a 3/4" female NPT fitting and the discharge tube>> from the gauge set is a R134a female fitting. I'm trying to learn all this ac stuff.

Never going tohappen though.

You can actually buy R-134a in either type of cylinder depending on where you buy it, it is exactly the same gas just different fittings on the cylinder.

That's the governmental logic: intelligent economizing must give way to backstopping presumed stupidity.

I'd like to see term limits for ALL elected offices.

Except another lawyer, but they don't matter. Which is why politicians are like diapers - theyneed to be changed often, and for the same reasons. As Uncle Al sez, environmentalism is expensive, shoddy, and deadly.

> > It's the mouth breathing politicians who wrote the impossible to> follow laws the bureaucrats are trying to (selectively) enforce who> *are* that stupid.

Mastercool 82834-E High Side Manual R134A Quick Co 36" R134a Hose w/ 1/2 In ACME-F and 14mm-M Auto A/C Fittings Meets SAE J2196 specifications.UL recognized.Tested for working pressure of 600 PSI and burst pressure of 3,000 PSI. I've>> assembled all the necessary tools except for one item.

Not the marketplace, not engineering standards, not the convenience or expedience of you or me or the OP.

>1/2" Acme as I recall but I don't remember the pitch, sorry!

Term limits were not considered because of that.

This conversion fitting and its companion the 35-16363S are I think what you're looking for.

Edited: Sat October 10, 2009 at 12:08 AM by mk378. These fittings are used with most refrigerants including R-12 and R-22, and stationary systems with R-134a. Edited: Fri October 09, 2009 at 9:50 PM by mk378, Can I get an explanation of what this adapter #90338 converts. These snap fittings thread on to the red and blue hoses and seal with o rings. Salamanca, NY 14779, Copyright 2022 Toolsource.com.

The purpose of a vacuum pump is to remove moisture and air from an A/C-R system. Charging Hose Set w/ Auto Shut Off Fitting - 72 In Set of three standard hoses: one blue, one red, and one yellow hose.Auto shut-off valve fitting automatically retains refrigerant in the service hose when they are removed from the system.Tested for working pressure of 750 psi & burst pressure of 3,000 psi.Knurled brass nuts make finger tightening easy.Crimped w/ 8 segment dies for secure fit & maximum durability.Meets EPA, SAE, & UL standards f Set of three standard hoses: one blue, one red, & one yellow hose.Auto shut-off valve fitting automatically retains refrigerant in the service hose when removed from the system.Tested for working pressure of 750 psi & burst pressure of 3,000 psi.Knurled brass nuts make finger tightening easy.Crimped w/ 8 segment dies for secure fit & maximum durability.Meets EPA, SAE, & UL standards for containment of refrigerant.

Please>> enlighten me!>. I've, On Sun, 14 Jun 2009 10:35:18 -0400, BQ340 <. First, moisture can cause freeze-up in a system. > I plan on machining an adapter to get the 2 fittings connected> to each other.

But not an adapter made so you can hook up your service manifoldhoses to the car or refrigerator being serviced, or hook up the hosefrom your vacuum pump to your service manifold. A lot of the low-cost manifolds are sold as dual purpose.

I want to recharge the refrigerant in my auto air conditioner. In auto work there is never a need to adapt from acme to quick connect.

Not when there are so many out of work law students who weren't smartenough to bribe their way past the bar.

This would be the same scenario as converting an R12 system R134a, but we want to be able to use the quick snap connections of the R134a gage set instead of the threaded connections.Does this make sense?

We've updated our forums!Click here to visit the new forum.

This item may not be in stock; R134a Charging Hose Set - 72 In Features: Set includes one blue, one red, & one yellow hose.Yellow hose comes w/ 1/2" Acme female fitting available with automatic shut-off valve.Blue & red hoses include male 14mm x 1.5" & 1/2" Acme female fittings.Tested for working pressure of 600 psi & burst pressure of 3,000 psi.Meets SAE J2196 specifications & are UL recognized. What the (heck) are you talking about? Is there an adapter that would thread on to this tank fitting that would have a valve core in it and would connect to the yellow line?

Your vacuum pump should have 1/4" SAE Flare and 3/8" SAE Flarefittings if it was made for refrigeration work - you connect themanifold hose with the 3/8 fitting, and can attach the micron vacuumgauge to the 1/4" to monitor your progress. Anddeliberate release is instant trouble. Learn the most efficient technologies in the field of casting. My next dilemma will be to try and purchase some R22 refrigerant. I've tried to look this up and found no real answers so far. Like the old joke about the testing lab that is switching from rats to lawyers: 1 - Lawyers are more numerous2 - Nobody cares what you do to a lawyer3 - There are some things even a rat won't do, > 2 - Nobody cares what you do to a lawyer. The founders all had things to do, like managing a business.Government duties detracted from that.

What is the proper technical name for this fitting? I just ordered them on here.

The EPA holds that if certain fittings are required, then adapters to circumvent them are not permitted, since that defeats the very purpose of the fittings, namely to make impossible the mixing or confusing of refrigerants. Well we noticed this really old thread and see that it still gets lots of hits on Google. It was in my box labeled AC crap.

What determines the size of auto sized planes? Modern systems are built tighter and charges are more critical.

While the utility of adapters is obvious, you're supposed to have a separate set of gages and hoses for each refrigerant.

Mind you this is just for fun and to see if I can fix it.

They may be stupidMF's working for the government, but they ain't THAT stupid.

With gases in general, different fittings are used for practically all different gases so you do not mix the or use the wrong gas. http://www.epa.gov/ozone/snap/refrigerants/fittlist.html, >gary wrote:>> I want to recharge the refrigerant in my auto air conditioner.

Two-Way Aluminum Metric Manifold Gauge Set w/ Hoses 152cm R12, R22, R134a & R404AStandard hoses, standard fittings.Hose connections are 1/4" SAE.Gauges are 63mm in PSI/BAR & C? (If the system under vacuum has an extra service port, connect thevacuum gauge sensor directly to it. These havethe What size thread is on paint poles and broom sticks(shop brooms)?

If you're going to go back and forth you should flush the manifold and hoses to get the PAG out.

This would obviously be 2 different adapters.

Unless they've made some serious changes since I took and passed thetest, there are no approvals processes or "lists of approvedmachinery" You just have to use procedures to reduce accidental orincidental release of CFC's and HCFC's as much as possible. My yellow hose from my manifold gage set is too large and has the plunger for the valve.

Yes those are the ones. I sure wish the people in Washington DC had other things to do.Idle hands truly are the devils workshop.