1. Marking example: Quick change connector with nominal diameter DN 15mm, quick change connector 15 (JB / ZQ4434-86).

2. Example of connection form: (a) one end is connected to the hose joint, the other end is external thread, and the sealing gasket can be screwed directly on the gas, hydraulic cylinder and gas and liquid components;

(b) One end is connected to the hose joint, and the other end is connected to the "transition joint" (JB / ZQ4437-86), which can be used with various hydraulic cylinders, cylinders and various

Connection of pneumatic and hydraulic components;

(C) One end is connected to the hose connector, and the other end is connected to the "nut" (JB / ZQ4438-56), which can be connected with the corresponding diameter connector;

(d) One end is connected to the hose joint, and the other end is connected to the coupling nut, the connection pipe (JB / ZQ4439-86), etc., and welded to the steel pipe through the connection pipe.