BSPP/BSPT Adapters
British Standard Pipe adapters in parallel (BSPP/G thread, ISO 228-1) and tapered (BSPT/R thread, ISO 7-1) configurations. Connect British pipe systems to metric, NPT, SAE, and JIC standards.
Standard: ISO 1179 / ISO 228 · 7 product series
BSPP Male Adapters
MaterialCarbon Steel / SS316L
BSPP Expander Adapters
MaterialCarbon Steel / SS316L
BSPP Male and Female Swivel Adapters
MaterialCarbon Steel / SS316L
BSPP Female Swivel Adapters
MaterialCarbon Steel / SS316L
BSPP Female Adapters
MaterialCarbon Steel / SS316L
BSPP to BSPT Reducing Adapters
MaterialCarbon Steel / SS316L
BSPT Male Adapters
MaterialCarbon Steel / SS316L
Frequently asked questions
What is the difference between BSPP and BSPT threads?
BSPP (G thread, ISO 228-1) is parallel — it requires an O-ring or bonded seal on the port face to create a seal. BSPT (R thread, ISO 7-1) is tapered — it self-seals through thread interference like NPT, typically needing PTFE tape. BSPP is standard in European and British hydraulic systems; BSPT is common on East Asian equipment.
Are BSPP and NPT threads interchangeable?
No. Although the pitch and angle look similar at first glance, BSP (G/R) and NPT are not interchangeable. NPT has 60° thread angle; BSP has 55°. Forcing them together causes cross-threading and leakage. We supply dedicated cross-standard adapters (BSP × NPT) for these conversions.