Galvanised forged carbon steel reducing couplings to ASME B16.11 are available here on our website in sizes up to 4” (100mm) x 3” (80mm) nominal bore. These pipe fittings are all forged from HDG galvanised ASTM A105N carbon steel and conform to the ASME B16.11:2016 and BS 3799:1974 standards.
Our ASME B16.11 couplings come either BSPT threaded to ISO 7-1 (BS EN 10226) or NPT threaded to ASME B1.20.1, they’re manufactured in Europe and come with 3.1 test certificates. These forged fittings are 3000lb/psi (206 bar) pressure rated and generally used in high pressure/temperature installations with ASTM A106 seamless steel tube.
3/8" x 1/4" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetP..
£8.62
1/2" x 1/4" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetP..
£8.62
1/2" x 3/8" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetP..
£8.62
1/2" x 3/8" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPi..
£7.66
3/4" x 1/2" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetP..
£11.94
3/4" x 1/2" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPi..
£17.98
3/4" x 1/4" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetP..
£11.94
3/4" x 3/8" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetP..
£11.94
3/4" x 3/8" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPi..
£17.98
1" x 1/2" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPip..
£16.40
1" x 1/2" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPipe..
£14.60
1" x 3/4" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPip..
£16.40
1" x 3/4" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPipe..
£14.60
1" x 3/8" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPip..
£16.40
1" x 3/8" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPipe..
£14.60
1 1/4" x 1" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetP..
£32.46
1 1/4" x 1" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPi..
£28.86
1 1/4" x 1/2" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View Datashee..
£32.46
1 1/4" x 1/2" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View Datasheet..
£28.86
1 1/4" x 3/4" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View Datashee..
£32.46
1 1/4" x 3/4" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View Datasheet..
£28.86
1 1/2" x 1 1/4" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View Datash..
£37.22
1 1/2" x 1 1/4" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View Datashe..
£33.10
1 1/2" x 1" NB ASME B16.11 BSPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetP..
£37.22
1 1/2" x 1" NB ASME B16.11 NPT Threaded Galvanised Carbon Steel Reducing Coupling - View DatasheetPi..
£33.10