Constant Spring Hanger-Support
constant spring hanger-support2
Maintain a constant supporting force for piping systems experiencing vertical movement due to thermal expansion, preventing high-stress loads
Key Functions and Design:
Constant Effort: Unlike variable springs, constant supports provide a near-constant supporting effort throughout their entire range of motion.
Application: These devices [see LISEGA] are crucial in power, oil and gas, and petrochemical plants where significant thermal expansion occurs, such as on steam lines or large turbine exhaust piping.
Mechanism: A rotating lever (bell crank) allows the effective moment arm of the main spring to change, compensating for the changing force of the coil spring.
High Load Capability: They are capable of handling high loads and large movements.
lisega se
lisega se
+4
Installation and Maintenance:
Locked Position: Units are usually shipped in a locked (pinned) position to ensure stability during installation.
Removal of Stops: After installation and initial pipe insulation, the locking devices must be removed for the hanger to operate properly.
Load Adjustment: While calibrated in the factory, constant hangers often allow a limited amount of load adjustment (
) in the field, as described in the Piping Technology Installation Guide.
Types of Constant Supports:
Horizontal and Vertical Types: Available for overhead suspension (hangers) or base-mounted applications.
Standardized Types: Manufacturers provide various configurations (e.g., IndiaMART's catalog) suited for different structural attachments, such as trapeze, direct, or threaded connections
Constant Effort: Unlike variable springs, constant supports provide a near-constant supporting effort throughout their entire range of motion.
Application: These devices [see LISEGA] are crucial in power, oil and gas, and petrochemical plants where significant thermal expansion occurs, such as on steam lines or large turbine exhaust piping.
Mechanism: A rotating lever (bell crank) allows the effective moment arm of the main spring to change, compensating for the changing force of the coil spring.
High Load Capability: They are capable of handling high loads and large movements.
lisega se
lisega se
+4
Installation and Maintenance:
Locked Position: Units are usually shipped in a locked (pinned) position to ensure stability during installation.
Removal of Stops: After installation and initial pipe insulation, the locking devices must be removed for the hanger to operate properly.
Load Adjustment: While calibrated in the factory, constant hangers often allow a limited amount of load adjustment (
) in the field, as described in the Piping Technology Installation Guide.
Types of Constant Supports:
Horizontal and Vertical Types: Available for overhead suspension (hangers) or base-mounted applications.
Standardized Types: Manufacturers provide various configurations (e.g., IndiaMART's catalog) suited for different structural attachments, such as trapeze, direct, or threaded connections
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✦ MSS SP-58
✦ MSS SP-69
✦ ASME B31.1
✦ ISO 9001:2008