How to install expansion joints at the inlet and outlet of the fan

Air duct expansion joints.

It is divided into two types: metal expansion joint and non-metal expansion joint, which are generally installed at the inlet and outlet of the fan. The following points should be paid attention to when installing:

1.The installation of expansion joints shall be carried out in accordance with the provisions of the technical documents of the fan equipment;

2.When the fan is connected with the expansion joint, the expansion joint should not bear external force and tension.

3.After the non-metallic expansion joint is connected, the nut on the inner side of the non-metallic expansion joint should be loosened, and the tie rod shall not be removed.

4.Expansion joints that need to be welded to be connected are not allowed to splash on the bellows during installation.

or the surface of non-metallic parts to prevent damage to the expansion joint expansion and contraction parts.

Smoke duct expansion joint recommendation: Hebei Weiye bellows manufacturing ****, Baishun brand smoke duct expansion joint, won the "China market well-known brand" and "Hebei Province famous trademark".

If it is welded, it can be welded directly, and if it is flanged, it is fastened with bolts.

Summary. No, the adjustable induced draft fan outlet expansion joint cannot be made of metal expansion joint. The inlet and outlet of the induced draft fan must use non-metallic fabric expansion joints.

The soft connection of the inlet and outlet of the induced draft fan is called the skin of the non-metallic fabric expansion joint at the inlet and outlet of the induced draft fan, and its materials are mainly glass fiber fabric, rubber composite cloth, high-temperature resistant composite materials, etc.

Adjustable induced draft fan outlet telescopic energy saving can not use metal expansion joints.

This question is up to me, it takes a little time to type, so please be patient.

No, the adjustable induced draft fan outlet expansion joint cannot be made of metal expansion joint. The inlet and outlet of the induced draft fan must use non-metallic fabrics. The soft connection of the entrance and exit of the induced draft fan is called the skin of the non-metallic fabric expansion joint at the entrance and exit of the induced draft fan, and its materials are mainly glass fiber fabrics, rubber composite fabrics, high-temperature resistant composite materials, etc.

Why can't you use metal materials, now the corrosion history is treated like this.

So how to solve the corrosion problem? The installation is a mess with the old man who wins the sea gang, how to solve it?

So how to solve the problem of powder corrosion? Installation for half a year. How to solve the problem of air leakage?

So how to solve the problem of corrosion and air leakage, and the corrosion and air leakage after half a year of installation?

You give me 48 inches later.

The inlet and outlet of the induced draft fan must use non-metallic fabric expansion joints. The import and export materials of the induced draft fan are determined.

Non-metallic fabric expansion joints, not metal, so not easy to corrode.