Spring supports and hangers are key components used to support and suspend equipment and pipes in piping systems. Their core value lies in addressing thermal expansion and contraction issues caused by temperature fluctuations in pipes and equipment. The following are their key features:
Core Features:
1. Compensating for Thermal Displacement
Core Function: By expanding and contracting internal springs, they automatically absorb thermal expansion and contraction (axial and vertical) caused by temperature fluctuations in the pipe, preventing excessive stress or deformation.
Applicable Applications: Steam pipelines, high-temperature oil pipelines, thermal equipment, and other applications subject to significant temperature fluctuations.
2. Providing Constant Support Force
Load Stability: During thermal displacement of the pipe, spring supports and hangers maintain a relatively constant support force (within the design range), preventing uneven stress on the equipment due to pipe sinking or lifting.
Equipment Protection: Prevents the weight of the pipe from being transferred to sensitive equipment (such as pumps and valves), minimizing vibration transmission and structural damage.
3. Variable Load Design
Spring Pre-Compression: Adjust the spring pre-compression during installation to precisely match the varying load requirements of the pipeline in its cold (installed) and hot (operating) states.
Wide Load Range: Covers support needs from light loads (hundreds of kilograms) to heavy loads (tens of tons).
Additional Advantages:
4. Vibration Damping and Isolation
The spring structure absorbs vibration energy during pipeline operation, reducing noise and protecting the pipe support foundation.
5. Simplified Pipeline Design
Reduces the use of expensive expansion joints, elbow compensators, and other components in the piping system, reducing project costs.
6. Flexible Installation and Maintenance
Provides a locking device (such as a shipping pin or clamp): The spring locks during installation and releases after the pipe warms up, ensuring safe installation.
Supports vertical, horizontal, or tilted installation, adapting to complex spatial layouts.
Technical Features:
7. Accurate Load-Displacement Curve
The spring characteristics are rigorously calculated and tested, providing linear or constant-force load-displacement curves (see chart), ensuring that displacement compensation is perfectly matched to the load.
(Diagram: Load changes smoothly with displacement, and support force fluctuates minimally within the allowable displacement range.)
8. High Durability and Reliability
️ Material: The spring is made of high-quality alloy steel (such as 60Si2Mn) and is treated with corrosion protection (galvanized, spray-coated, etc.).
️ Structure: The protective housing design protects against dust and impact; the guide structure ensures stable movement.
9. Standardized and Customizable
Complies with domestic and international standards such as GB/T 12777 and ASME B31.1.
Customizable according to load range, displacement, and mounting configuration (such as variable/constant force, root connection).
Typical Applications:
Power Industry: Power plant steam piping, boiler flue gas ducts
Petrochemical/Chemical Industry: High-temperature reactor piping, cracking units
HVAC: Large-scale heating networks, refrigeration unit piping
Industrial Equipment: Steam turbine and compressor inlet and outlet piping
Critical Selection: Accurately calculate the pipe's working load, displacement and direction, and temperature range to avoid improper spring selection that could lead to overload or undercompensation.
