Attributes . ABS Type Approval, ANSI/CAN/UL 213 (1/2" to 3" only), ASME B31.1, B31.3, B31.9, BV (Bureau Veritas), CRN 13492.5 A/B/C, DNV-GL, FM Class 1920 (1/2" to 2" only), IAPMO PS117, ICC-ES LC1002, Lloyd's Register, NFPA 13, 13D, 13R, NSF/ANSI 372, NSF/ANSI 61 . Names