The Pipe Support Blog

90,000 lb. Load Big Ton Springs for a Chemical Plant

Piping Technology and Products, Inc. manufactured four 13,500 lb. Big Tons Springs for a chemical plant in Texas. These PTP-500 Big Ton Springs have a load capacity of 60,000 to 90,000 lb. are fabricated from A-36 carbon steel. They are designed for 750°F and a downward travel range of 3/16" to 1/4". These 37" x 31" x 30" Big Tons will be used to support certain critical equipment with thermal expansion at the chemical plant. To assure quality, load testing was performed on the big tons prior to shipping.

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Piping Technology & Products, Inc. specially designed and fabricated big ton springs equipped with special rollers to accommodate moving apparatuses and support piping at a refinery in India.

The specially designed big tons were made to support loads ranging from 55,000 lbs. to 114,000 lbs with no more than 5/16" upward movement. Its composition comprises of A-36 carbon steel, built to a maximum height of 23-5/8".

The special rollers installed on the top (see photo at top right) of the load flange, keeps the aforementioned loads moving smoothly under all kinds of conditions. To further assure their quality, each of the big ton spring assemblies underwent load testing and afterward were hot dipped galvanized to prevent against corrosion.

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Big Ton Springs Equipped with Lifting Lugs

Piping Technology & Products, Inc. specially designed and fabricated big ton springs equipped with side lifting lugs to support piping of a 102-megawatt, refinery cogeneration power plant in California.

Under typical circumstances, this type of job application would utilize variable spring hangers, but because of the restricted space, the hangers' size would be too small to support a hot load of 19,068 lbs and cold load of 17,212 lbs. In order to satisfy both the required loads and space, PT&P engineers designed and fabricated figure 500 big ton springs equipped with side lifting lugs. The lifting lugs were attached to allow the big ton to suspend as a variable spring would in the field.

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Big Ton Springs With Loads Up To 450,600 Newtons

Piping Technology & Products, Inc. specially designed and fabricated Big Ton Variable Springs for a chemical project in Canada. The supporting beams are 30" in length with PTFE, 25% glass filled stainless steel slide plates. The Big Ton Springs were designed with six coil springs with external guides to prevent horizontal twisting and internal guides to withstand horizontal friction forces. These units were also designed for operating loads from 260,000 to 350,000 Newtons and hydro-test loads from 300,000 to 450,600 Newtons. A total of six units were painted with a special finish specified by the client.

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