Universal corrugated expansion joint

Product Introduction

The universal corrugated expansion joint is a kind of flexible compensation element widely used in pipeline system, which is mainly used to absorb the displacement caused by thermal expansion and contraction, vibration or installation error. The following is a comprehensive analysis of its product introduction:

I.Structure and composition

1. Core components

• Bellows: Made of thin-walled seamless stainless steel (such as 304, 316L, etc.) or nickel alloy through high-precision plastic machining, it has excellent stretchability and elasticity, and is the key component of compensation function.

• Mesh sleeve and connector: The mesh sleeve is woven from stainless steel wire to enhance the pressure bearing capacity and protect the bellows; The joints are flanged or welded to suit different pipeline connection requirements.

• Guide bracket and pull rod: Prevent excessive displacement and ensure that the bellows work within a safe range.

• guide tube(Optional): Reduce the scouring of the bellows by the medium and prolong the service life.

II. Functional Features

1. Compensation capacity

• Primary absorptionAxial displacementBut also compensate for a small amount of lateral and angular displacement.

• Compensation range: 18-400mm (depending on specification).

• Pressure and temperature resistance: The working pressure can reach 6.0MPa, and the applicable temperature range is-20℃ ~450℃ (special materials can be extended to 800℃).

• Corrosion resistance: Stainless steel or alloy material suitable for acid, alkali, salt and other corrosive media.

• Vibration and noise reduction: Absorb the vibration of the pipeline and reduce the noise of equipment operation.

III,Technical parameters

Four,Application Scenario

1. Industrial pipeline system

• Thermal pipe network, chemical pipeline, blast furnace air supply system of iron and steel plant, etc., to compensate for thermal displacement and reduce installation stress.

• Pump valve inlet and outlet, reduce vibration transmission and protect equipment.

• Prevent pipeline deformation and failure caused by foundation settlement.

Five,Key points of selection and installation

1. Selection basis

• Select materials and structures comprehensively according to media characteristics (temperature, corrosiveness), displacement direction and magnitude, and pressure grade.

• It is necessary to set a guide bracket to avoid external force twisting the bellows.

• When carrying a guide tube, pay attention to the media flow direction mark to prevent impurities from accumulating.

VI.Product Advantages and Limitations

• Advantage: Compact structure, high degree of standardization, low cost, suitable for most medium and low voltage scenarios.

• Limitations: Compared with the special type (such as pressure balance type), the ability to compensate complex displacement is limited, and the high temperature and high pressure scenario needs customized design.

For more detailed parameters or selection suggestions for special operating conditions, please refer to the product manual.