BS 1782:1951

This standard BS 1782:1951 Specification for couplings for suction and delivery hose (1½ in. to 8 in. nominal sizes) other than fire hose couplings is classified in these ICS categories:

• 23.040.60 Flanges, couplings and joints

Part 1 of this standard covers 1½, 2, 2½, 3, 3½ and 4 in. screw type couplings and adaptors for use in conjunction with suction and delivery hose intended for working pressures not exceeding 100 lb/sq. in.

Screw type and swivelling-ring swing-bolt type. Working pressures not exceeding 100 lb/sq in. Primarily for use with water, but may be used for other liquids. Screw type couplings suitable for compressed air. Workmanship, interchangeability, marking, hydraulic testing, materials. Unified form of screw thread. Illustrations with dimensions. See BS 1906.