When both end fittings of the assembly are elbow fittings, there is an angular relationship between the two elbow fittings during assembly. For measurement, straighten the hose assembly and look along the straight line direction. Position elbow fitting 1 vertically upward, then measure the included angle clockwise between elbow fitting 2 and the vertically placed elbow fitting 1; this is the assembly angle of the hose assembly, denoted by V. As shown in the diagram, for example, when the assembly angle a is 225°, it is marked as V225.
