Pipe Swivels are female adapters featuring a nut with a straight thread captured on a 30º cone tapered gland. A seal occurs between the taper in the male fitting and the 30º cone tapered gland. Pipe Swivels are for use with male tapered pipe thread hose fittings with a 30° seat. Pipe Swivels do not seal on the thread like most pipe threads, they seal on the nose of the swivel and the seat of the male tapered pipe thread. This creates a metal to metal seal.
As a hose adapter only. Other methods of connecting tubing, pipe, or joining components should be utilized in system design.