https://chemglass.com/couplings-beaded-pipe

CG-1968-69
Coupling, 1-1/2" Beaded Pipe, "A" 2-7/16" X "B" 1-5/16", 50 in-lbs MAX Torque, 7/16" Hex Nut Size

CG-1968 COUPLING
COUPLINGS, BEADED PIPE
Complete coupling assembly consists of a 300 series stainless steel outer band with T-bolt, a Viton liner, and a PTFE sealing ring. Couplings allow for a maximum deflection of 4°. PLEASE NOTE: TIGHTEN ALL COUPLINGS TO THE PROPER TORQUE SETTING.

Part Number Fits Pipe Size (inches) "A" x "B" (inches) MAX Torque (in-lbs) Hex Nut Size (inches)
CG-1968-70 3/4                                 1-1/2 x 7/8         25                                 3/8
CG-1968-66 1                                 1-7/8 x 1-1/16         35                                 7/16
CG-1968-69 1-1/2                         2-7/16 x 1-5/16 50                                 7/16
CG-1968-67 2                                 3-1/8 x 1-5/16         60                                 7/16
CG-1968-T-75 3                                 4-1/4 x 1-7/16         75                                 1/2