Heavy Duty Constant Spring Support

When the load of a single pipeline exceeds 300kN and thermal displacement surpasses 200mm, ordinary constant spring supports are prone to structural deformation, connecting rod fracture, loss of constant force precision and other failures. Such malfunctions lead to pipeline stress concentrations exceeding allowable values, triggering tearing of equipment nozzles, medium leakage, and even unplanned shutdown of the entire plant. A single shutdown incident may incur losses of tens of millions of RMB.

The Heavy Duty Constant Spring Support is a special heavy-duty support equipment developed to address challenges under these extreme operating conditions. It is specially engineered for large pipeline systems with loads above 500kN and displacements within 400mm.

Product Technical Specifications

Product Definition & Core Design Philosophy

A Heavy Duty Constant Spring Support is a heavy-duty pipeline support device that delivers constant supporting force across the full stroke via a precision moment balance mechanism.

Yangzhou Tianshun Pipeline initiated R&D for this product line back in 2015, with a total investment of 12 million RMB in dedicated production equipment and testing facilities. A complete product portfolio has now been established, featuring a maximum load capacity of 2000kN and maximum displacement of 600mm, ranking at a leading domestic level.

Our core design philosophy centers on Redundant Safety: all critical components are engineered with safety factors higher than industry benchmarks to secure sufficient safety margins even under extreme working conditions. Meanwhile, structural optimization minimizes overall size and weight without compromising structural strength, cutting installation and transportation costs.

Detailed Redundancy Breakdown

1.Main Frame Redundancy: Constructed from 20–50mm thick integrally welded steel plates fitted with longitudinal and transverse stiffeners, lifting overall rigidity by over 60%.

2.Spring System Redundancy: Multi-spring parallel layout ensures remaining springs can fully bear pipeline loads even if one spring fails.

3.Transmission Mechanism Redundancy: Synchronized dual connecting rods eliminate support collapse risks stemming from single rod breakage.

Full Series Standard Specification Chart

Six standard series of Heavy Duty Constant Spring Supports are available to cover most heavy-duty industrial application scenarios:

Custom material grades and tailored designs are offered upon client request for all models.

Full-Lifecycle Reliability Verification System

A rigorous end-to-end verification system is implemented to guarantee reliable performance under extreme conditions. Every Heavy Duty Constant Spring Support undergoes five mandatory inspection procedures:

All inspection records are archived for a minimum retention period of 15 years and accessible to customers anytime. Our testing laboratory holds CNAS accreditation, delivering internationally recognized test results.

Global Benchmark Project Track Record

As of May 2026, our Heavy Duty Constant Spring Supports have been deployed across 120 large-scale industrial projects worldwide, including:

▶  A 10 million tons/year refining & chemical integration complex: 320 sets of HD-800 and HD-1200 supports supplied

▶  A million-kilowatt nuclear power plant: 156 sets of nuclear safety-class heavy-duty constant spring supports supplied

▶  A 20 million tons/year LNG receiving terminal: 89 sets of low-temperature dedicated heavy-duty constant spring supports supplied

▶  A 3000MW thermal power station: 245 sets of heavy-duty supports for main steam pipelines supplied

Proven performance across these landmark projects validates outstanding reliability and stability, while equipping us with extensive engineering experience in designing heavy-duty pipeline support systems.

Project-Tailored Delivery & Exclusive Services

Customized delivery packages for Heavy Duty Constant Spring Supports are provided for large-scale projects:

1.Dedicated Project Team: Each major project is assigned a dedicated project manager, technical engineer and quality engineer to oversee full-cycle progress.

2.Phased Shipment: Batch delivery aligned with site construction schedules to reduce on-site storage burdens.

3.On-Site Acceptance Service: Engineers dispatched to conduct product acceptance and installation guidance on location.

4.On-Site Technical Standby Support: Resident engineering support available during peak installation phases.

5.Long-Term Follow-Up Service: Annual operational condition audits post-commissioning with professional maintenance recommendations.

We provide an 18-month warranty period, 6 months longer than the industry average. For quality defects arising within warranty coverage, we guarantee a 48-hour response time and on-site troubleshooting within 72 hours.

Frequently Asked Questions (FAQ)

Q: What is your maximum achievable load and displacement for Heavy Duty Constant Spring Supports?

A: Standard models reach a maximum load of 2000kN and maximum displacement of 600mm. Bespoke designs are available for extra-large requirements, capable of up to 3000kN load and 800mm displacement.

Q: Are the products suitable for low-temperature service?

A: Yes. Low-temperature special variants adopt 304 or 316L stainless steel, validated via low-temperature impact testing, and can operate stably at -196℃ for LNG, ethylene and other cryogenic pipeline systems.

Q: What are the standard lead times?

A: Standard models have a 45–60 day lead time; customized units take 60–90 days depending on complexity. Rush production is available for urgent projects, with a shortest lead time of 30 days.