NON RETURN VALVE – Art 455: Brass non return valve, vertical type ROMA, PN10rastelli2023-12-11T13:48:11+00:00 Project Description NON RETURN VALVE – Art 4551″ – 1″1/4 Brass non-return valve, vertical type download technical data sheet Art Ø PN 455025 1″ 10 – – 455032 1″1/4 10 – –