Click to expand Tap to zoom PN16 Screwed Flexible Connector BS21 EPDM by Albion Valves (UK) Ltd SKU AFLE400050 Flexible Connector EPDM 16 Bar Rated PN16 Screwed Flexible Connector. EPDM Body. BSP Taper BS21 (ISO 7/1) or NPT (ANSI B1.20.1) NPT valves are subject to factory lead time. Screwed BSP Taper (ISO 7/1) or NPT (ANSI B1.20.1) 16 Bar Rated -20°C to +100°C ART-400-rev1.pdf (albionvalvesuk.com) Accessories