Metal bellows expansion joints

Introduction

  Metal bellows expansion joints are also called metal bellows, metal expansion joints, or bellows Pump Connectors. It consists of bellows (a kind of elastic element) and the end pipes, brackets, flanges, pipes and other accessories that form the main body of its work. The metal expansion joint belongs to a compensation element.The metal expansion joint is mainly used to compensate for axial displacement and has the ability to compensate for angular displacement, but it is generally not used to compensate for angular displacement. Metal expansion bellows are compensating elements for thermal expansion and relative motion in pipes, vessels and machines. Absorption of axial, lateral, and angular displacement.

Features: simple design, easy installation, shock absorption and noise reduction

[Nominal diameter]: DN32mm-DN1000mm

[Working pressure]: 0.6-2.5Mpa

[Working temperature]: -15℃to 300℃

[Material]: 316L, 304L, 321, carbon steel

[Connection method]: flange type, welded type, groove type

[Applicable medium]: water, steam, air, weak acid and alkali, oil, etc.

Performance

Advantages

1. Compensate for axial, lateral and angular thermal deformation of the absorption pipe.

2. Absorb expansion of metal expansion joints, convenient for installation and disassembly of valve pipe.

3. Absorb equipment vibration and reduce the impact of equipment vibration on the pipeline.

4. Absorb the deformation of pipelines caused by earthquake and subsidence.

Application

Metal bellows expansion joints are used in a variety of applications and can be used over a range of temperature requirements, pressures and sizes.

The corrugated compensator uses the telescopic and offset of its main elastic component bellows to compensate the displacement of the pipeline, with large compensation and good elasticity.

Principle of axial movement of metal bellows expansion joint

The metal bellows expansion joint is considered to be the elongation or compression of the pipe system on its longitudinal axis, which means that the total length of the expansion joint will be extended or compressed during the absorption movement.An axial expansion joint designed to absorb large motions can contain one, two or more bellows in one unit, and can also achieve greater motion by pretensioning or by installing multiple expansion joints on the pipe section.According to the nominal diameter and length,the axial expansion joints can absorb small lateral and angular deviations as well as mounting tolerances. However, we recommend the use of the main function that should limit the axial expansion joint, otherwise its service life may be adversely affected.