Parallel flow condenser - Page 2 - PeachParts Mercedes-Benz Forum

2.5Turbo · #16 03-18-2008, 02:53 AM

Quote:

Originally Posted by Knightrider966

I'm very happy with Envirosafe and it is Legal as long as you replace all your seals and put on the R134A fittings, Envirosafe charges the same way.

There is a lot of panic about Envirosafe being explosive, but almost all of it is pure bull.

Sure it will explode if you do stupid stuff with it and R134A is twice as likely to not only explode, but more violently and poisonous gas causing permanent brain damage and death results.

Even R 12 would turn into phosgene gas, a deadly and toxic gas that kills without warning.

Envirosafe does none of those things and if you use standard safety precautions, you will be fine!

Envirosafe is compatible with oil from R134A or R12. Since you have to take your system apart anyway to retrofit, just use compressed air to blow the excess oils out of your system. R12 oil is still easy to get and in my opinion, it makes for a better lubricant. Envirosafe charges with the can upside down and goes in your system in a liquid form. Diesel engines do not have fuel anywhere near as flammable like gasoline or electrics for ignition. A good quality guage set is necessary since sight glass readings are meaningless here. Since it requires about 1/2 the energy to make it cool, a parallel condensor isn't necessary. Your fuel economy will be much better and your system will see a longer service life!

I don't understand how you can say that R134A is more likely to explode at standard temperature and pressure than what essentially is an alkane close to propane. Alkanes mixed with air have a good chance of exploding. There are things even in a diesel powered vehicle (e.g. relays) that can cause ignition.

R12 was used as a propellant in Albuterol inhalers until very recently. Some still use it.

R134A MSDS
ES12 MSDS

Knightrider966 · #17 03-18-2008, 03:16 AM

Quote:

Originally Posted by 2.5Turbo

I don't understand how you can say that R134A is more likely to explode at standard temperature and pressure than what essentially is an alkane close to propane. Alkanes mixed with air have a good chance of exploding. There are things even in a diesel powered vehicle (e.g. relays) that can cause ignition.

R12 was used as a propellant in Albuterol inhalers until very recently. Some still use it.

R134A MSDS
ES12 MSDS

Because R134A has to be charged at a much higher system pressure than ES 12.

ES 12 requires about 1/3rd to 1/2 less.

R 12 turns into deadly phosgene gas at high temperatures, such as discharging onto a hot exhaust mainfold.

There is a lot more molecular room for ES 12 than R134A. The high side of ES12 is almost the same as the low side of R134A.

Look, all chemicals are dangerous if you don't handle them properly.

ES 12 will not do damage to the environment and R134A will still deplete the ozone layer. If your so afraid of fire under your hood, your awfully close to fossil fuels which have to be ignited to make you go. And those damn rubber fuel lines, why if one of those broke and caught fire, you wouldn't stand a chance!

JimmyL · #18 03-18-2008, 10:12 AM

Folks that utilize the "propane" ignition attack on Envirosafe I imagine drove "gasoline" powered vehicles at some time in their life. More likely to ignite in my opinion. I'm not apologizing for Envirosafe, just observing the arguments against......

I hear about the reduced pressures of Envirosafe. What are the pressures that one should try for when filling, with outside temp taken into account? Does Envirosafe provide a chart? Guess I need to Google. China is on the clock and already has the R134A fittings.......