Assembly process of pneumatic ball valve:
1. The appearance of the pneumatic ball valve shall be inspected. The rubber shall not have cracks, and the rubber shall not be separated from the metal. The effective time of the pneumatic ball valve shall be checked according to the temporary technical regulations provided by the pneumatic ball valve;
2. Place the pneumatic ball valve on the upper side of the base according to the installation pattern of the pneumatic ball valve of the auxiliary machine. Check the bonding condition of the pneumatic ball valve and the support surface of the base. It is required that a feeler gauge with a thickness of 0.1 mm cannot be inserted, and a feeler gauge with a thickness of 0.1 mm to 0.2 mm can be inserted in some positions, However, the scope of insertion shall not be greater than 35% of the perimeter of the bottom surface of the pneumatic ball valve, and its depth shall not be greater than 20mm;
3. Draw the bolt hole line for fastening the pneumatic ball valve on the bearing surface of the base and drill at the same time. Under the condition of relatively large batch, make a sample according to the base of the machinery to be assembled, place the sample on the place required by the bearing surface of the base, draw the bolt hole, and then start drilling. In case of single or small batch, At this time, each pneumatic ball valve can be temporarily installed on the base of the auxiliary machine, and then the auxiliary machine and the pneumatic ball valve can be lifted to the base together. After the position of the pneumatic ball valve is correctly placed according to the requirements of the drawing, draw a line on the base according to the fastening bolt holes on the pneumatic ball valve, and then lift the auxiliary machine and the pneumatic ball valve together, and drill holes on the base;
4. Fasten the pneumatic ball valve on the base with the fastening bolts;
5. Lift the auxiliary machine to the required height point with a jack or jacking screw. Measure the distance between the plane on the sleeve of the pneumatic ball valve and the base. Its specification should be more than twice the diameter of the fastening bolt.