Vertical Constant Spring Support

When pipelines experience large vertical displacements (exceeding 100mm) and are extremely sensitive to load variations, the load variation rate (≤25%) of ordinary variable spring supports can lead to excessive pipeline stress, equipment interface damage and even pipeline rupture. The Vertical Constant Spring Support provides nearly constant supporting force (load variation rate ≤5%) throughout the entire working stroke based on the moment balance principle, completely solving the stress control challenge for large-displacement pipelines.

Working Principle

The vertical constant spring support utilizes the mutual balance between spring force and the moment generated by the linkage mechanism. As the pipeline moves up and down, the spring deformation is precisely compensated by the cam and linkage system, keeping the output supporting force stable. This design completely eliminates load fluctuations caused by pipeline displacement, protecting pipelines and connected equipment from additional stress.

Product Technical Specifications

Product Structure Breakdown

The standard Vertical Constant Spring Support adopts a modular design, consisting of the following independent components for easy on-site maintenance and replacement:

▶  Spring Assembly: High-strength alloy springs subjected to stabilization heat treatment

▶  Moment Balance Mechanism: Precision-machined cam and linkage system

▶  Load Adjustment Device: Top bolt adjustment for fine tuning during operation

▶  Displacement Indication System: Clear scale plate showing real-time pipeline displacement

▶  Upper and Lower Connection Assemblies: Multiple connection options to adapt to different installation conditions

▶  Protective Housing: Fully enclosed design to prevent dust and corrosive media ingress

Core Differentiated Advantages

Standard Specification Selection Table

Applicable Installation Scenarios

The Vertical Constant Spring Support is particularly suitable for the following pipeline systems requiring vertical installation and large displacement:

▶  Main steam pipelines and reheat steam pipelines in power plants

▶  High-temperature and high-pressure process pipelines in petroleum refining and chemical plants

▶  Cryogenic liquid pipelines in LNG terminals

▶  Blast furnace gas and oxygen pipelines in steel plants

▶  High-temperature steam main lines for urban central heating

▶  Inlet and outlet connecting pipelines of large storage tanks

Installation and Maintenance Guidelines

▶  Pre-Installation Inspection: Verify that the product model, load and deflection meet design requirements, and check for any damage during transportation

▶  Installation Precautions: Keep the support vertical with a deviation not exceeding 1°; remove the transport locking device after installation

▶  Pre-Operation Commissioning: Fine-tune the load according to actual on-site conditions to ensure the pipeline is level

▶  Daily Maintenance: Check the displacement indicator and connection bolt tightness every six months; conduct a comprehensive inspection annually

▶  Replacement Cycle: The product service life can reach 15-20 years under normal working conditions

Project Verification and Quality Control

Our Vertical Constant Spring Supports have been verified in numerous key projects worldwide, including:

▶  Main steam pipeline system of a 300MW thermal power plant

▶  A 10 million tons per year refining and chemical integration project

▶  Cryogenic pipeline project of an LNG terminal

All products undergo strict quality control procedures:

▶  Raw Material Incoming Inspection: Each batch of steel is subjected to spectral analysis and mechanical property testing

▶  Key Component Machining: CNC machining centers are used to ensure dimensional accuracy

▶  Spring Performance Testing: Each spring undergoes 100,000 fatigue cycles

▶  Complete Machine Performance Testing: Each unit undergoes full-stroke constant force performance testing

▶  Final Factory Inspection: Complete quality certification documents are issued

Our quality management system is certified to ISO 9001:2015, and all products comply with international standards including CE and API.

Supporting Services

▶  Free technical selection and pipeline stress analysis

▶  Customized design services for non-standard products

▶  On-site installation guidance and technical training

▶  12-month warranty period with lifetime technical support

▶  Emergency spare parts supply with 48-hour response

For more detailed information about the Vertical Constant Spring Support, please contact our technical team for professional selection advice.

Frequently Asked Questions (FAQ)

Q: What is the difference between vertical and horizontal constant spring supports?

A: The main differences lie in installation method and space occupation. Vertical constant spring supports are installed vertically and occupy less horizontal space, making them suitable for narrow pipe rack areas. Horizontal constant spring supports are installed horizontally and occupy more vertical space, suitable for locations with sufficient headroom.

Q: Can your Vertical Constant Spring Support have its load adjusted on-site?

A: Yes. The product is equipped with a dedicated load adjustment bolt at the top, allowing fine tuning during pipeline operation without shutdown. The adjustment range is ±10% of the rated load.

Q: Is this product suitable for low-temperature environments?

A: Yes. We offer special low-temperature models that adopt cryogenic-resistant materials and special treatment processes. They can operate normally at temperatures as low as -196℃ and are suitable for cryogenic pipeline systems such as LNG.