Racor is a pack of nut + ring + solar joint.
Racor is a pack of nut MS58 + ring of steel AISI304 + joint of NBR 150ºC.
Relationship flex metal pipe vs racor/nut:
Flex pipe DN12 - Nut 1/2".
Flex pipe DN16 - Nut 3/4".
Flex pipe DN20 - Nut 1".
Flex pipe DN25 - Nut 1.1/4".
Flex pipe DN32 - Nut 1.1/2".
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