In many industrial sites, equipment, passages, valve groups or other obstacles exist beneath pipelines, making floor-mounted supports impossible to install. Meanwhile, some large-diameter pipelines experience thermal displacements exceeding 100mm, and the load fluctuations of ordinary variable spring supports will cause pipeline stress to exceed allowable limits.
The Hanging Constant Spring Support solves this industry challenge perfectly. It is installed by suspension from overhead steel structures, occupying no space beneath pipelines, while delivering a constant supporting force with a fluctuation rate of ≤5% across the full stroke.
| Constant Spring Hanger Spec Table | Example |
| Model / Series | PH, LH, CA, CS, TH |
| Load Capacity (Operating) | 0.1 kN - 500 kN |
| Total Travel | 50mm, 100mm, 200mm, 400mm |
| Actual Travel | Up to 600mm |
| Load Deviation (Tolerance) | ±5% (Standard) / ±3% (High Prec.) |
| Installation Position | Horizontal / Vertical |
| Housing Finish | Hot Dip Galvanized / Epoxy |
| Operating Temp. | -20°C to +80°C (Ambient) |
| Spring Coil Material | 60Si2Mn / 50CrVA |
| Load Adjustment Range | ±10% (Field Adjusting) |
The two installation methods have their respective applicable scenarios for different site conditions, and Hanging Constant Spring Supports offer irreplaceable advantages in space-constrained environments:
|
Comparison Dimension |
Hanging Constant Spring Support |
Floor-Mounted Constant Spring Support |
|
Installation Location |
Below overhead steel structures / concrete beams |
Above ground / equipment platforms |
|
Under-Pipeline Space Occupation |
None |
Full occupation |
|
Installation Difficulty |
Medium (requires high-altitude operation) |
Low |
|
Load Transfer Path |
Pipeline → Support → Overhead structure |
Pipeline → Support → Ground foundation |
|
Applicable Scenarios |
Pipelines with obstacles below, elevated pipelines |
Pipelines with sufficient space below |
|
Maximum Load Capacity |
1200kN |
2000kN |
|
Maximum Displacement |
400mm |
600mm |
Based on the general constant spring support design, Hanging Constant Spring Supports have undergone targeted optimizations for the stress characteristics of suspension installation:
▶ Forged Integral Lifting Lugs: Top lifting lugs adopt monolithic forging technology with no welding defects, achieving a safety factor of 2.5 times.
▶ Anti-Swing Limiting Device: Equipped with transverse limiting structures to prevent excessive pipeline swing during operation.
▶ Adjustable Hanger Rod Assembly: Standard 1–3m adjustable hanger rods to adapt to different installation heights.
▶ Fall Protection Design: Double safety mechanisms are installed at all connection points to prevent high-altitude falls.
▶ Visual Displacement Indicator: Large-scale scale plates are mounted on the side for easy observation of operating status by ground personnel.
Five standard series of Hanging Constant Spring Supports are available to cover most industrial application requirements:
|
Model Series |
Rated Load Range (kN) |
Rated Displacement Range (mm) |
Operating Temperature Range (℃) |
Standard Hanger Rod Length (m) |
Maximum Unit Weight (kg) |
|
HCS-50 |
1–50 |
50, 100 |
-40 ~ +450 |
1.5 |
120 |
|
HCS-100 |
50–100 |
100, 150 |
-40 ~ +450 |
2.0 |
250 |
|
HCS-200 |
100–200 |
150, 200 |
-40 ~ +550 |
2.0 |
480 |
|
HCS-500 |
200–500 |
200, 300 |
-40 ~ +550 |
2.5 |
1200 |
|
HCS-1200 |
500–1200 |
300, 400 |
-196 ~ +550 |
3.0 |
3500 |
All products comply with GB/T 17116.2, ANSI/ASME B31.1 and API RP 551 standards.
The key performance indicators of Hanging Constant Spring Supports all exceed national standard requirements. All data comes from 100% full inspection records of our CNAS-accredited laboratory:
|
Performance Indicator |
National Standard Requirement |
Tianshun Measured Value |
|
Load Fluctuation Rate |
≤5% |
≤4% |
|
Lifting Lug Tensile Strength |
1.5 times rated load |
2.5 times rated load |
|
Weld Non-Destructive Testing |
20% sampling |
100% full inspection |
|
Fatigue Life |
≥100,000 cycles |
≥150,000 cycles |
|
Hanger Rod Adjustment Accuracy |
±10mm |
±5mm |
To ensure absolute safety of products installed at high altitudes, we assign a unique product identification code to every Hanging Constant Spring Support, enabling full lifecycle traceability:
▶ Raw Material Traceability: Each batch of steel is accompanied by the original Mill Test Certificate (MTC), and spectral analysis results are bound to the identification code.
▶ Production Process Records: Operators and timestamps for all critical processes (welding, heat treatment, assembly) are fully documented.
▶ Inspection Report Archiving: All inspection reports are converted into electronic files and can be queried online via the identification code.
▶ Factory Marking: The unique identification code, production date and inspector number are engraved on the product nameplate.
▶ After-Sales Tracking: Product installation and operation information is synchronously entered into the system, providing lifelong technical support.
Hanging Constant Spring Supports have been successfully applied in over 320 industrial projects worldwide, with cumulative deliveries exceeding 180,000 units. Typical scenarios include:
▶ High-altitude sections of main steam and reheat steam pipelines in power plants
▶ Elevated process pipelines in petroleum refinery plant areas
▶ Tank top pipelines in LNG receiving terminals
▶ Suspended sections of blast furnace hot air pipelines in steel mills
▶ Cross-river and cross-road elevated steam pipelines in cities
▶ Large-diameter pipelines in nuclear power plant conventional islands
We can provide copies of past project contracts, owner acceptance reports and on-site operation photos as proof of our capabilities.
In response to the special requirements of high-altitude installation for hanging supports, we provide exclusive services:
▶ Free installation node design and load calculation
▶ Dispatch of certified high-altitude operation engineers for on-site installation guidance
▶ Provision of dedicated installation tools and safety protection equipment
▶ 18-month warranty period, 6 months longer than the industry standard
▶ Regular inspection services to ensure long-term safe operation of products
Q: What if the installation height is insufficient?
A: We can customize short hanger rod versions according to the actual site height, or provide top embedded installation solutions to maximize installation space savings.
Q: How to adjust the support load from the ground?
A: All models are equipped with ground-adjustable devices. Load fine-tuning can be completed from the ground using a dedicated extended wrench, eliminating the need for high-altitude operations.
Q: How are products protected during transportation?
A: We use custom wooden crates with internal cushioning materials and fixing devices to prevent deformation of the connecting rod mechanism during transportation. A transport locking device is also included to ensure products arrive at the site in perfect condition.
Address
No.115 Yunhe North Road, Yangzhou City.Shuzhou, China
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If you have any enquiry about quotation or cooperation, please feel free to email us at jsts2021@yeah.net or use the following inquiry form.Our sales representative will contact you within 24 hours. Thank you for your interest in our products.
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