All OPW swivel joints are full bore schedule 40 construction with short radius elbows, except 6", 8", and 10” fabricated steel and stainless steel swivels which have long radius elbows. Ball bearing raceways and sealing surfaces in all swivels are precision machined and micro-finished to assure friction-free operation and superior sealing characteristics. All steel and ductile iron swivels are painted blue.
3800 Series (Cast Ductile Iron)
Bodies and tails of cast A-536 ductile iron. Precision-ground steel balls, Buna-N O-ring main seal, and felt dust seal are standard. Buna-N O-ring dust seal standard in 1" size. ASME B16.1, Class 125 dimensionally equal to 150lb. ASME RF Flange. Item: 3820-0202
Construction: Conventional Swivels, Ductile iron
Style: 1 plane of rotation
End Connections: Female NPT threads both ends
Seal Materials: Fluorocarbon
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