MODEL NUMBER SELECTION By-pass size, fixed end ( and ): 15 = female DN15 (1/2”) 20 = female DN20 (3/4”) 25 = female DN25 (1”) 32 = female DN32 (1 1/4”) 40 = female DN40 (1 1/2”) 50 = female DN50 (2”) F3910 . . . .I. Connection size and type, union end ( and ): 00 = no union ends Model and size Female threaded Male threaded F3910.XX. with union ends, DN15-25, 1/2”-1” E = 15 mm / 1/2” F = 20 mm / 3/4” H = 15 mm / 1/2” I = 20 mm / 3/4” J = 25 mm / 1” F3910.XX. with union ends, DN25-40, 1”-1 1/2” G = 25 mm / 1” J = 25 mm / 1” P = 32 mm / 1 1/4” S = 32 mm / 1 1/4” Q = 40 mm / 1 1/2” T = 40 mm / 1 1/2” Sweat K = 15 mm L = 18 mm M = 22 mm N = 28 mm W = 35 mm Connection standard: I = ISO (standard) Assembly requirement: 0 = not assembled (standard) 1 = assembled 2 = assembled and pressure tested Example: F3910.20.F.F.I.0 = DN20 (3/4”) fixed female FlowCon By-pass 2-uion with DN20 (3/4”) female union end connections, ISO, not assembled. Tech note · FlowCon By-Pass 2-union · september 2023 · www.flowcon.com Page 3 of 4
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