Pressure gauges - connections & threads

Connections and threads

Dependent on the geographical location, environment and other factors, the industry uses different types of threads. Typical thread types are - NPT (National Pipe Taper), NPS (National Pipe Straight), BSPT (British Standard Pipe Taper), and BSPP (British Standard Pipe Parallel).

NPT (National Pipe Taper) – Tapered 

• Common process connection in the USA and in the oil/petroleum industries
• Tapered thread - pressure tight seal made on the thread itself

NPS (National Pipe Straight) – Parallel

• Common process connection in the USA
• Parallel thread – pressure tight seal made using a sealing washer

BSPT (British Standard Pipe) – Tapered

• Process connection in the rest of the world – not common
• Tapered thread - pressure tight seal made on the thread itself

BSPP (British Standard Pipe) – Parallel

• Common process connection in the rest of the world
• Parallel thread – pressure tight seal made using a sealing washer

Brannan Thermometers supply pressure gauges with BSP, NPT & BSPT connections. For more information contact sales@brannan.co.uk