DKJ getting simple to is it connect one end join hose (steel tube ) , with carry silk (1 - 3 ) have the whorl steel tube to join another end to in charge of, please indicate the hose and steel tube specification to manage to book, an example: DKJ15-15B (or DKJ15-1/2 ") join one end 15 of Φs (1/2 ") hose,join 15B of one end (1/2 ") steel tube. | Specification form note | Thick steel tube B (water gas pipe) | Thin steel tube A (electric wire is managed) | | The metric system | British system | Nominal | Great Britain claims | walls of external diameter are thick (mm) | Nominal | Great Britain claims | walls of external diameter are thick (mm) | | φ10 | 1/4″ | #10 | 1/4″ | | #12 | 1/2″ | 12.76 × 1.60 | | φ12（13） | 3/8″ | #12 | 3/8″ | 17 × 2.25 | #15 | 5/8″ | 15.87 × 1.60 | | φ15（16） | 1/2″ | #15 | 1/2″ | 21.25 × 2.75 | #20 | 3/4″ | 19.05 × 1.80 | | φ20（19） | 3/4″ | #20 | 3/4″ | 26.75 × 2.75 | #25 | 1″ | 25.40 × 1.80 | | φ25 | 1″ | #25 | 1″ | 33.5 × 3.25 | #32 | 1/1/4″ | 31.75 × 1.80 | | φ32 | 1/1/4″ | #32 | 1/1/4″ | 42.25 × 3.25 | #40 | 1/1/2″ | 38.10 × 1.80 | | φ38（40） | 1/1/2″ | #40 | 1/1/2″ | 48 × 3.5 | #50 | 2″ | 50.80 × 2.0 | | φ51（50） | 2″ | #50 | 2″ | 60 × 3.5 | #70 | 2/1/2″ | 63.50 × 2.5 | | φ64（70） | 2/1/2″ | #70 | 2/1/2″ | 75.5 × 3.75 | #80 | 3″ | 76.2 × 3.20 | | φ75（80） | 3″ | #80 | 3″ | 88.5 × 4 | | | | | φ100 | 4″ | #100 | 4″ | 114 × 4 | | | | | φ125 | 5″ | #125 | 5″ | 140 × 4.5 | | | | | φ150 | 6″ | #150 | 6″ | 165 × 4.5 | | | | |
