Variable Spring Support for Pipeline

Variable Spring Support for Pipeline is a dedicated elastic support device engineered to withstand vertical displacement of pipelines. It delivers adjustable supporting force within the allowable displacement range by leveraging the inherent stiffness of springs. When pipelines move up and down due to temperature fluctuation, medium flow or equipment vibration, the support automatically regulates the bearing force, effectively preventing pipe stress concentration and damage to equipment connections.

Yangzhou Tianshun Piping has been engaged in the production of this product since 2012. Up to now, we have supplied over 800,000 sets to more than 300 industrial projects across the globe, and the product performance has been fully validated by long-term on-site operation.

Product Technical Specifications

Design Principle & Structural Composition

Designed in accordance with Hooke's Law, the deflection of the spring is directly proportional to the applied load. When the pipeline moves upward, the spring compression decreases and the supporting force is reduced accordingly. When the pipeline moves downward, the spring compression increases, leading to a higher supporting force. This feature enables the support to adapt to dynamic changes of operating pipelines and maintain stress balance of the entire piping system.

Standard products consist of the following key components:

▶  Cylindrical helical spring: Made of alloy spring steel and subject to rigorous heat treatment and stabilization treatment.

▶  Upper & lower connecting plates: Used to connect pipelines and building structures, with flexible installation modes adaptable to site conditions.

▶  Load indicator plate: Displays real-time spring load and pipeline displacement.

▶  Locking device: Secures the spring position after installation and commissioning to avoid deformation during transportation and on-site erection.

▶  Protective housing: Blocks dust, rainwater and corrosive media from entering, so as to extend the service life of the spring.

Key Technical Features

▶  Controllable load variation rate: The design load variation rate is kept within 25%, ensuring even force distribution across the piping system.

▶  Wide selection of specifications: Equipped with 12 load classes and 5 displacement sizes, covering the demands of most industrial piping applications.

▶  Pre-load calibration: Pre-adjusted to the specified load per customer requirements before delivery, ready for direct use after on-site installation.

▶  Anti-loosening structure: All connecting parts are fitted with lock nuts and lock washers to prevent loosening during operation.

▶  Modular construction: Major components are interchangeable for easy on-site maintenance and replacement.

▶  Strong environmental adaptability: Matching materials and surface treatments can be selected to suit diverse working conditions.

Performance Comparison with Other Piping Supports

Typical Application Scenarios

Variable Spring Support for Pipeline is widely used in various industrial piping systems subject to temperature changes, especially ideal for the below applications:

▶  Steam pipelines, feedwater pipelines and condensate pipelines in thermal power plants

▶  Process pipelines and connecting pipelines of heat exchange equipment in petrochemical plants

▶  Compressor stations and valve chambers of long-distance natural gas pipelines

▶  Main and branch pipelines of urban central heating networks

▶  Sludge conveying pipelines in sewage treatment plants

▶  Piping systems on ships and offshore platforms

Manufacturing & Full-process Quality Control

We own modern production lines for variable spring supports, equipped with professional facilities including CNC spring coiling machines, spring testing machines, spectrometers and non-destructive testing instruments. All products are manufactured under strict quality control procedures:

1.Incoming Raw Material Inspection: Chemical composition analysis and mechanical property tests are conducted for every batch of steel; unqualified materials are strictly rejected.

2.Spring Manufacturing Control: Springs are coiled by CNC equipment to guarantee accurate dimensions and precision.

3.Spring Performance Testing: Each spring undergoes 3 full compression tests and load tests to ensure stable performance.

4.Finished Assembly Inspection: Dimensional check, load calibration and visual inspection are carried out for assembled products.

5.Final Pre-delivery Inspection: Sampling inspection is implemented in accordance with national standards, and only qualified products are allowed for delivery.

Our quality management system has obtained ISO 9001:2015 certification, and all products comply with international standards such as CE and API.

Selection Guide & Supporting Services

We provide professional selection guidance to help customers pick the most suitable products. Simply provide us with pipeline parameters, operating temperature, displacement, installation space and other relevant information, and our engineers will calculate and recommend the optimal model and specification of Variable Spring Support for Pipeline.

We also offer a full range of supporting services as follows:

▶  Non-standard customization: Custom-designed and manufactured products for special load, displacement or limited installation space requirements.

▶  On-site technical service: Professional engineers can be dispatched to guide on-site installation and commissioning.

▶  Warranty service: All products come with a 12-month warranty. Defective products will be repaired or replaced free of charge within the warranty period.

▶  Long-term spare parts supply: A complete spare parts inventory is maintained to deliver rapid response to customers’ spare parts demands.

Please contact our sales team for further details and quotations of Variable Spring Support for Pipeline.