Albion CSUMF stainless steel 316 (CF8M) male/female conical unions to ISO 4144:2003, also known as cone seat unions, are available in sizes 1/4" (8mm) - 4" (100mm) NB. All of these male/female unions are threaded to ISO 7-1 (BSPT taper male/BSPP parallel female), CE marked and 20 bar (150 PSI) pressure rated at up to 40°C. The full operating temperature range for these stainless steel unions is -20°C - 220°C, 3.1 test certificates are available upon request.