Ir Series: Italy Standard Available On Request: Iso A - Iso B - Note: Interchangeable Faster Ns Series With Iso 7241 - 1 Series "a" Only Size 1/2 "- Features - Interchangeability: Iso7241 Standard - 1 - Part A (only Size 1/2 ") - Occlusion: Protruding Ball Valve - Connection: Withdrawing The Ring Nut. - Disconnection: Withdrawing The Ring Nut. - Pluggable: With Pressurized Male. - Disengageability Under Pressure: Not Allowed - Tapping Threads: Bsp, Npt - Construction Material: Carbon Steel - Surface Treatment: Zinc Plating - Springs: C72 Steel - Balls: Hard Steel 100 C6 - Internal Brass Valve Guide With Mechanical Stop - Gaskets: Standard In Nbr (nitrile)