Another Orifice tube question
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Another Orifice tube question
Thanks to this forum I learned the difference between the red and the blue orifice tubes. Now I need to know which one to use when converting from R12 to R134A in a '93 F150. Thanks.
Mountain Pass
Joined: Aug 2016
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From: Florida
Blue is for R12
Red is for R134A
Blue has larger diameter needed for R12 gas or refrigerant or freon. (Ester oil)
Red has smaller diameter needed for R134A gas or refrigerant or freon. (PAG oil)
These gases are not the same in their molecules! Each also uses different oil.
Red is for R134A
Blue has larger diameter needed for R12 gas or refrigerant or freon. (Ester oil)
Red has smaller diameter needed for R134A gas or refrigerant or freon. (PAG oil)
These gases are not the same in their molecules! Each also uses different oil.
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