GB3734 Card sleeve type three-way pipe jointDetailed product description：

GB3745.1-83

parameter table

Outer diameter of the pipe Do mm	4 5 6	8 10	12 14	16 18	20 22	24 26 28	32 34	40 42
British thread d NPT R G	1/8”	1/4”	3/8’	1/2”	3/4”	1”	11/4”	11/2”
Metric thread d M	M10x1	M12x1.5 M14x1.5	M16x1.5 M18x1.5	M22x1.5	M27x2	M33x2	M42x2	M50x2
pressure rating Mpa	E level: 16 G level: 25 J level: 40

Model example: A sleeve type tapered threaded straight connector with an outer diameter of ф 10 and a terminal thread of R3/8 ", pressure rating G.
Recorded as: GB3734. R1/4 "G10