Metal expansion joint without tie rod

The metal expansion joint without tie rod belongs to a compensating element. The metal expansion joint without tie rod 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

1. Large axial displacement compensation and long service life.
2. Excellent material and stable operation.
   
3. Compensate the axial thermal deformation of absorption pipeline.
   
4. Corrugated bellow expansion and contraction, easy to install and disassemble the valve pipe.
   
5. Absorb equipment vibration to reduce the impact of equipment vibration on the pipeline.

Principle of axial movement of metal bellows expansion joint

Axial movement 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 extend or compress 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. . Depending on the nominal diameter and length, the axial expansion joints are able to 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.

Application

The unlimited metal expansion joint can be used in a variety of applications and can be used over temperature, pressure and size.

The unlimited metal expansion joint uses the telescopic and offset of its main elastic element bellows to compensate the displacement of the pipeline. The compensation amount is large and the elasticity is good. The product is suitable for conveying seawater, fresh water, hot and cold water, drinking water and life. Sewage, crude oil, fuel oil, lubricating oil, refined oil, air, gas, etc.

Structure

The unlimited metal expansion joint is also called a shock absorbing corrugated bellow, a bellows, an expansion joint, or a telescopic joint. It consists of a bellows (an elastic element) that constitutes its working body, and accessories such as a joint and a flange. The unlimited metal expansion joint belongs to a compensating element.

Working principle

Product parameters