Tubing type Symbol A 1, 2 Type Inch Metric Body size (according to the combination table) Type of piping (according to the combination table) Symbol R�ｭ Type Reducing LQ3 U 2 1 R1 How to Order Fitting type Symbol U Type Union Nut material, packaging Symbol Nil 1 2 3 Nut material PFA PFA PVDF PVDF Clean packaging equivalent to Class M3.5 Standard packaging equivalent to Class M5.5 Clean packaging equivalent to Class M3.5 Standard packaging equivalent to Class M5.5 Packaging Size Model A side B side Applicable tubing size (mm) 1 2 3 4 5 6 LQ3U11-R1 LQ3U21-R1 LQ3U21-R2 LQ3U31-R1 LQ3U31-R2 LQ3U32-R1 LQ3U32-R2 LQ3U41-R1 LQ3U41-R2 LQ3U51-R1 LQ3U51-R2 LQ3U61-R1 LQ3U61-R2 4 x 3 6 x 4 10 x 8 8 x 6 12 x 10 19 x 16 25 x 22 3 x 2 4 x 3 3 x 2 8 x 6 6 x 4 6 x 4 4 x 3 10 x 8 8 x 6 12 x 10 10 x 8 19 x 16 12 x 10 Size Model A side B side Applicable tubing size (inch) 2 3 4 5 6 7 LQ3U2A-R1 LQ3U3A-R1 LQ3U3A-R2 LQ3U4A-R1 LQ3U4A-R2 LQ3U5A-R1 LQ3U5A-R2 LQ3U5A-R3 LQ3U6A-R1 LQ3U6A-R2 LQ3U7A-R1 1/4" x 5/32" 3/8" x 1/4" 1/2" x 3/8" 3/4" x 5/8" 1" x 7/8" 1 1/4" x 1.1" 1/8" x 0.086" 1/4" x 5/32" 1/8" x 0.086" 3/8" x 1/4" 1/4" x 5/32" 1/2" x 3/8" 3/8" x 1/4" 1/4" x 5/32" 3/4" x 5/8" 1/2" x 3/8" 1" x 7/8" Size combination (Metric) Size combination (Inch) A side B side o4 o6 o10 o8 o12 o19 o25 o3 o4 o3 o8 o6 o6 o4 o10 o8 o12 o10 o19 o12 10 17 22.5 22.5 24 26.5 30 E1 9 16 19.5 19.5 22 24 26 E1’ 10 10 22.5 17 17 10 22.5 24 22.5 26.5 24 E2 9 9 19.5 16 16 9 19.5 22 19.5 24 22 E2’ 11 16 21 21 24 32 41 H1 11 11 21 16 16 11 21 24 21 32 24 H2 46.5 51 79 66.5 66.5 62 82.5 95.5 91 112.5 106.5 L 44.5 48.5 73 62 62 58 77 91 85.5 105.5 100 L’ 14 20 25 25 29 37 49 M1 14 14 25 20 20 14 25 29 25 37 29 M2 10 14 18 18 22 30 36 Model W LQ3U11-R1 LQ3U21-R1 LQ3U21-R2 LQ3U31-R1 LQ3U31-R2 LQ3U32-R1 LQ3U32-R2 LQ3U41-R1 LQ3U41-R2 LQ3U51-R1 LQ3U51-R2 LQ3U61-R1 LQ3U61-R2 A side B side Applicable tubing O.D. 17 22.5 24.5 26.5 30 35 1/4" 3/8" 1/2" 3/4" 1" 1 1/4" 1/8" 1/4" 1/8" 3/8" 1/4" 1/2" 3/8" 1/4" 3/4" 1/2" 1" E1 16 19.5 22.5 24 26 35 E1’ 10 17 10 22.5 17 24.5 22.5 17 26.5 24.5 30 E2 9 16 9 19.5 16 22.5 19.5 16 24 22.5 26 E2’ 16 21 24 32 41 50 H1 11 16 11 21 16 24 21 16 32 24 41 H2 51 66.5 62 82.5 72.5 95.5 91 81 112.5 106.5 132.5 L 48.5 62 58 77 69 91 85.5 77 105.5 100 128.2 L’ 20 25 29 37 49 64 M1 14 20 14 25 20 29 25 20 37 29 49 M2 14 18 22 30 36 46 Model W LQ3U2A-R1 LQ3U3A-R1 LQ3U3A-R2 LQ3U4A-R1 LQ3U4A-R2 LQ3U5A-R1 LQ3U5A-R2 LQ3U5A-R3 LQ3U6A-R1 LQ3U6A-R2 LQ3U7A-R1 A side B side Applicable tubing O.D. oM2 L, L’ (E1, E1’) (E2, E2’) H2 oM1 H1 A side B side W 1/4 (E1,E1’,E2,E2’): Reference dimension for the inserted tubing from the end surface of the nut (E1’,E2’),L’: Nut material PVDF dimensions oM H Class 7 Metric Size Inch Size Note) For details of the applicable tubing sizes, refer to page 823. Note) For details of the applicable tubing sizes, refer to page 823. Tubing connection Union Reducing Series LQ3 Dimensions Union reducing: LQ3U-R 803 LVC LVA LVH LVD LVQ LVP LVW LQ1 LQ3 LVN LQHB TL TIL TLM TILM TD TID TH TIH