Swivel ring flange

SWIVEL RING FLANGE has the same field of use of the WELDING NECK FLANGE, but it is composed by a butt weld hub with a rotary ring which allows an easier installation (typically for sub-sea installation) .
Dimensions of SWIVEL RING FLANGE match the related WELDING NECK FLANGE.
The seal is guaranteed by ring joint or spiral wound gasket.