BSPT Male to RJT Female Adapter

Tapered BSP thread to RJT female union end

This adapter joins a female-threaded BSP pipe port to an RJT union line. One end features a tapered male pipe thread (BSPT), while the opposite end forms an RJT liner fitted with a hexagonal union nut ready to engage a mating RJT male part and union seal.

Separate body and nut steel grades

Unlike single-piece adapters machined from one alloy throughout, the source specification distinguishes between the wetted body and the external fastening nut. All nine listed adapter bodies are specified in grade 316 stainless steel, whereas the supplied standard hexagonal nut is specified in grade 304 stainless steel.

Wrench flats and joint assembly

Machined flat spots on the adapter body allow an open-ended spanner to hold the fitting steady while tightening the tapered BSPT male thread or drawing up the RJT hex nut. Select a thread sealant suited to tapered pipe threads and pair the RJT end with a compatible union seal for the intended service.

Nine listed Metric by NB size combinations

The catalog table covers nine nominal sizes from 1/2 inch (12.7x15NB) through 4 inches (101.6x100NB), pairing metric tube diameters with nominal bore thread designations. Compare both the thread designation and the RJT union size together with dimensions A and B on the reference drawing before installation.