How to adjust if the specification and model table of flanged pneumatic ball valve is not closed in place? Process principle of pipe diving wall plugging
1. The civil engineering discipline shall timely provide wall positioning and elevation lines. The device discipline shall first install pipes, boxes and fix them in place. After the inspection is qualified, the device discipline shall hand over to the civil engineering discipline.
2. The civil engineering discipline shall use the cavity of the hollow block, make a small groove on the side of the block, and build the pipe in the cavity.
3. Cut the hole on the side wall of the hollow block, and provide the corresponding position of the box device.
4. Cut a triangular groove on the middle rib of the hollow block to provide the laying position of the pipe.
