greetings to all....
i just want to know your opinion as to what kind/type/brand of o-ring is best suited for aircon with 134 refrigerant... Likewise, any insight as to where it can be bought will be highly appreciated.. TIA
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Tsikoteer
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February 18th, 2011 08:46 PM #1
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ASE MasterTechnician
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February 18th, 2011 09:03 PM #2
Originally Posted by phezthie
for R134a refrigerant, the o-rings to use is HBNR. back in the days when we used R12, we used buna o-rings and seals or nitrile o-rings, the buna or nitrile o-rings do not seal against leak of R134a better than HBNR. the o-rings should be soaked or prelubricated with PAG oil prior to installation
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Tsikoteer
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February 18th, 2011 09:27 PM #3many thanks for that quick reply sir jick...
unfortunately, you just confirmed that my NBR-70 o-ring service kit has no use at all....
i have been trying to look for HNBR here (your out of the country right now I presume) but to no avail. most a/c suppliers simply say that nbr will do and that Hnbr is quite costly for a yearly a/c maintenance.
From your end, may i know if their representation is correct or acceptable, that is to use nbr instead of hnbr taking into consideration your earlier post? again,many thanks... regards
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February 19th, 2011 03:01 PM #4 Originally Posted by phezthie
many thanks for that quick reply sir jick...
unfortunately, you just confirmed that my NBR-70 o-ring service kit has no use at all....
i have been trying to look for HNBR here (your out of the country right now I presume) but to no avail. most a/c suppliers simply say that nbr will do and that Hnbr is quite costly for a yearly a/c maintenance.
From your end, may i know if their representation is correct or acceptable, that is to use nbr instead of hnbr taking into consideration your earlier post? again,many thanks... regards
your nbr o-rings will do with a little bit more of leaks and leak testing. however, if you really want peace of mind, order the HNBR o-ring kit
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February 19th, 2011 08:54 PM #5thanks, sir jick... Originally Posted by jick.cejoco
anyone who can direct me where to buy o-ring set?
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February 20th, 2011 12:31 PM #6www.omega-usa.com Originally Posted by phezthie
thanks, sir jick...
anyone who can direct me where to buy o-ring set?
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Originally Posted by phezthie
