Screwed Pipe Fittings (Part 2)

Low Pressure 150lb BSP Screwed Pipe Fittings generally to BS1740

Nominal Bore Size
1/8 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 4
A 0.525 0.600 0.820 0.920 1.20 1.48 * * * * * *
B 1/2 11/16 11/16 7/8 15/16 1 1/16 * * * * * *
C * 11/16 13/16 7/8 1 1 1/16 1 5/16 1 5/16 1 9/16 2 3/8 2 3/8 *
D * 3/4 1 1 1/8 1 3/8 1 5/8 2 2 1/4 2 3/4 3 1/2 4 *
E 5/8 3/4 7/8 1 1/8 1 3/8 1 5/8 2 2 1/4 2 3/4 3 7/16 4 4 7/8
F 3/4 1 1 1/16 1 1/4 1 1/2 1 5/8 2 2 2 1/2 2 13/16 3 1/16 3 7/16
G * 1 1 1/16 1 1/4 1 1/2 1 5/8 2 2 2 1/2 2 13/16 * *
Nominal Bore Size
1/8 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 4
A 11/16 11/16 13/16 1 1/16 1 5/16 1 9/16 1 13/16 2 1/16 2 9/16 2 15/16 3 7/16 4 7/16
B 3/4 3/4 15/16 1 1/8 1 3/8 1 9/16 2 2 1/4 2 3/4 3 1/2 4 5
C 1 3/8 1 7/16 1 5/8 1 7/8 2 2 1/4 2 1/2 2 13/16 3 1/16 3 1/4 4 5/16
D 0.875 1.00 1.125 1.25 1.375 1.375 1.875 2.18 2.62 3.37 3.75
E 1.10 1.20 1.30 1.48 2.06 2.25 2.75 3.00 3.625 4.50 5.50
F 5/16 3/8 1/2 5/8 3/4 13/16 1 1 1 1/4 1 5/16 1 7/16 1 3/4

Expert technical
knowledge

Contact us for expert technical advice with applications, grade selection and product working pressures.

Wide range of
products

DH Stainless stock the widest range of stainless steel piping and tubular products.

Three stock
centres

DH Stainless have our main distribution stock hub at our head office in North West England as well as stock branches in Scotland and South East England.