A full range of ductile iron tapped blanks can be found here, this includes red-painted and galvanised versions in sizes 2" x 1" - 8" x 2". All of these 300PX tapped blanks are mech branded and manufactured by Viking EMEA, they come with a grooved end for use with grooved couplings as well as a female BSPP parallel threaded outlet for use with male BSP threaded pipe or fittings.
Grooved fittings are quick and easy to install with grooved couplings, they require no special tools or hot working and provide an economical alternative to other types of fitting, they’re extremely popular on fire protection systems. Our BSP threaded tapped blanks are all UL & FM approved and 34.5 bar (500 PSI) pressure rated. Grooved lubricant should be used during installation.