Swagelok RS ISO228 Stainless Steel Connector Adapter

The Swagelok RS ISO228 Stainless Steel Connector Adapter is a high-precision 316 stainless steel pipe fitting that provides a 1/8 in. NPT female port on one end and a 1/8 in. ISO parallel-thread port on the other, configured in Swagelok's RS (straight shoulder) form to bridge distinct thread standards in compact instrumentation piping. In Swagelok nomenclature, RS denotes an ISO 228 parallel-thread interface, distinguishing it from RP BSP variants, and this adapter is designed to join equipment ports that use NPT on one side to ISO parallel threads on the other without intermediate components. The 316 stainless steel construction, identified by the SS prefix in Swagelok part numbering, offers corrosion resistance and mechanical strength for demanding environments where leak‑free connections are essential. As part of Swagelok's tube adapter family, this RS connector adapter combines a female 1/8 in. NPT port with a male 1/8 in. ISO parallel-thread port, enabling reliable mating with compatible fittings and tubing that conform to ISO 228 standards.