BSPP Female to RJT Male Adapter

A one-piece grade 316 adapter connecting a female parallel BSP (BSPP) socket to an RJT male union end. External wrench flats assist assembly, with six listed size pairings from 1 to 4 inches.

Connection	BSPP female socket × RJT male union part
Material	316
Body construction	One-piece adapter
Listed size options	1" (25.4x25NB), 1 1/2" (38.1x40NB), 2" (50.8x50NB), 2 1/2" (63.5x65NB), 3" (76.2x80NB), 4" (101.6x100NB)
Tool engagement	External wrench flats

Size

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Transition between BSP socket and RJT male ends

The one-piece adapter joins a female parallel BSP socket to an RJT male union end, providing a direct transition from a threaded pipe connection to an RJT union. Its two mechanical interfaces allow the adapter connection to be assembled without an intermediate fabrication weld. Match each end to the appropriate mating part.

Wrench flat spots for installation

The adapter body incorporates external flat spots between the two interfaces. These flats provide contact surfaces for an open-ended or adjustable wrench during assembly, enabling personnel to hold the adapter securely while engaging mating threaded pipe or fitting the RJT union nut.

Parallel thread sealing considerations

The female thread is identified by the source as parallel BSP (BSPP). Because parallel threads do not seal through thread taper deformation, the sealing method depends on the mating thread design and the specific joint arrangement chosen for the installation. Confirm the sealing method, mating thread compatibility, and joint requirements before assembly.

Materials, size combinations, and mating parts

The catalog lists grade 316 stainless steel across six size pairings combining metric tube dimensions with nominal bore (NB) thread designations: 25.4x25NB (1"), 38.1x40NB (1½"), 50.8x50NB (2"), 63.5x65NB (2½"), 76.2x80NB (3"), and 101.6x100NB (4"). Complete joint assembly requires compatible mating RJT union parts and matching pipe threads suited to the installation.