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When a piping system needs to accommodate movement in both axial and lateral directions, selecting the right expansion joint is an important part of the overall pipeline design. Carbon steel untied joints are designed around this requirement, providing a two-bellows configuration for combined axial and lateral displacement.

Designed for Combined Axial and Lateral Movement

Different piping systems have different movement requirements. When displacement occurs in both the axial and lateral directions, a standard expansion joint may not provide the movement capability required by the application.

The Universal Untied Bellows Expansion Joint uses two bellows to accommodate combined axial and lateral displacement. This configuration provides flexibility for piping systems where movement needs to be absorbed in more than one direction.

For customers selecting carbon steel untied joints, the required movement capability should be one of the first factors considered during product selection.

Two-Bellows Configuration with Intermediate Pipe

The Universal Untied Bellows Expansion Joint consists of two bellows, an intermediate pipe, and structural parts.

This two-bellows configuration is an important feature of the product. By connecting the bellows through an intermediate pipe, the expansion joint is designed to accommodate combined axial and lateral movement.

When evaluating an expansion joint for a specific piping system, it is important to consider the actual displacement requirements together with the working pressure, nominal size, and installation conditions.

Important Pressure-Thrust Consideration

One point that should not be overlooked when selecting carbon steel untied joints is the pressure-thrust limitation.

The Universal Untied Bellows Expansion Joint cannot withstand the pressure thrust of the bellows expansion joint. This characteristic needs to be considered as part of the overall piping system design.

For this reason, customers should provide the relevant operating conditions and movement requirements when selecting the expansion joint. This allows the product configuration to be matched more appropriately to the actual application.

Suitable for Combined Displacement Requirements

The Universal Untied Bellows Expansion Joint is mainly designed for applications requiring the absorption of combined axial and lateral displace

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Wuxi Zhongbo Machinery Manufacturing Co., Ltd.

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