3/8 BLACK PLUG

Overview The PROSOURCE 3/8 Black Plug (31-3/8B) is designed for malleable iron pipe fitting applications involving steam and water systems. MPN 31-3/8B Brand PROSOURCE (Manufactured by World Wide Sourcing) Pipe Size 3/8 inch Working Pressure Up to 150 PSI (steam and water) Head Style Square Head Material Malleable Iron Finish Black Weight 3.91 lb Dimensions 18.5 x 12.59 x 9.44 in Technical Features Malleable iron construction — provides strength and resistance to mechanical stress in pressurized pipe systems. Rated up to 150 PSI working pressure — compatible with both steam and water service lines, meeting standard pipe fitting pressure requirements. Screwed (threaded) fitting type — allows secure, tool-assisted installation into standard threaded pipe ends without the need for welding or special tooling. Square head design — enables positive wrench engagement for reliable torquing during installation or removal. Black finish — consistent with standard black malleable iron pipe fitting systems used in water and steam distribution. Applications Sealing open pipe ends in steam distribution systems operating at pressures up to 150 PSI. Capping unused ports in water supply lines and plumbing assemblies. Use in screwed malleable iron pipe fitting systems in residential or light commercial installations.