Tag: furnace spring

What is a furnace spring?

May 16, 2014
Furnace springs operate in much the same way as other variable spring supports. They are designed to support the pipe or tubes that are subjected to vertical thermal movement. The design changes are necessary because furnace springs are exposed to extreme temperatures. Standard springs are usually hot dipped galvanized, which, when exposed to high temperatures, tends to melt the zinc coating. The molten zinc can then cause damage to the surrounding pipe and equipment.
08 Furnace Spring Assemblies Up To 13000 Lbs. For A Chemical Refinery

Furnace Spring Assemblies up to 13,000 lbs. for a Chemical Refinery

Furnace Spring Assemblies up to 13,000 lbs. for a Chemical Refinery

January 9, 2004
Furnace Spring Assemblies Up To 13,000 Lbs. For A Chemical Refinery
Furnace Spring Assemblies up to 13,000 lbs. for a Chemical Refinery

Piping Technology and Products, Inc. designed and manufactured furnace spring assemblies for a chemical refinery in Saudi Arabia.  Each pipe hanger assembly consists of a variable spring, rod, clevis, hex nuts, and pipe attachments. Unlike other variable springs which are designed to have bolted housings, these furnace springs are designed for spring coils with a customer specified spring rate installed in a welded housing. The sizes of these Fig. PTP-2 and Fig. PTP-4 ranged from 90-170, with a total travel of 1 1/4″ to 5″, and loads varying from 850 lbs to 13,300 lbs.

Furnace Spring Assemblies Up To 13,000 Lbs. For A Chemical Refinery
Furnace Spring Assemblies up to 13,000 lbs. for a Chemical Refinery

Prior to the final welding, trial fit-up and cycle test were performed to ensure unrestrained movement throughout the designed travel range. The spring assemblies were then calibrated to determine the exact spring rate prior to shipping.

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