. . . . CBF EV000737-electric valve 1/2 inchBASIC DATAC1, C2 connections: G 1/2" female thread (by BSPP¹)V1, V2 connections: G 1/2" female thread (by BSPP¹)Maximum operating pressure (continuous): 280 barCountry of origin: ItalyBritish Standard Pipe Parallel - British Standard Pipe Parallel, inch cylindrical thread, one of the Whitworth Pipe Threads (BSP) denoted by the letter G.