Polypropylene Pp Plastic Duct Manufacturer

There are usually several connection methods for PP ducts

1. Insert type connection

The bayonet-type air duct is connected with the rectangular air duct, and different forms of bayonet are inserted into both ends of the air duct.

2. PP duct connection

Both ends of each pipe section are rolled into drum rods connected by bands, and one end is shrunk into a small opening. When installing, insert the small port into the large port according to the airflow direction. On the outside, fasten the drum rods at the two tube ends and connect with bolts, and the bolts are fixed and fastened to the earrings.

3. Hose connection

The hose connection is mainly used to connect the spiral air pipe and various components (such as the air outlet on the side of the static pressure box of the diffuser, etc.).

4. Insert and connect PP duct

Plug connection is mainly used for rectangular or circular duct connection. First make the connecting pipe, and then insert the connecting pipe into the air ducts on both sides. Then, tighten it with self-tapping screws or rivets. The pp duct is economical, and the thickness of the pp duct processing board can be reduced by 10%-15% under the same diameter. It reduces costs, and the efficiency during hoisting is about twice that of a rectangular pp duct. Under the same plate thickness and pipe diameter, the strength of the pp duct is higher. On the same cross-section, the spiral duct structure has more reasonable tension and better rigidity, so it can greatly reduce noise and vibration.