4-Way Ball Valve 4 Way - RT7 | ADLER Ball Valve 4 Way - RT7 | ADLER The Ball Valve 4 Way - RT7 by ADLER is a versatile 90° wafer-type valve, crafted from round bar and compliant with standards such as DIN 3230 M3, ASME B16.34, and ISO 14313. It is available in sizes ranging from DN ¼” to 2” and can be made from carbon steel or stainless steel, with a pressure rating of PN 25 to 63. The valve features an "X" port ball type... View BSP PN 25 PN 63 DIN ASTM A105 ASTM A479 Type 316 PTFE