This custom designed carbon steel constant measures 19 5/8″ wide, by 59 1/2″ tall, by 52 1/8″ long. It is designed for a 500 lb. load with a total travel of 17 1/2″. The support frame was increased in height to meet a large take-off of 59 1/2″. The constant spring will be used to support piping in an oil refinery.
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28 sway braces were custom designed from a combination of carbon steel and A-5160 spring steel. Custom design and fabrication was required due to the design loads and movements exceeding the largest standard sway brace assembly. The application required ball joint ends because the angle of incline exceeded the maximum five degree angle. The largest of the sway braces was designed for an operating load of 10,000 lb. with a travel range of 5″ in either compression or extension. Each sway brace was load and travel tested prior to shipping to ensure functionality throughout the entire travel range.
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Piping Technology & Products, Inc manufactured the pre-insulated supports with 4″ of insulation thickness for pipe sizes ranging from 36″ to 56″ in diameter.
The cold shoes were fabricated from a combination of 10 and 20 PCF of polyurethane insulation. They also include a vapor barrier, aluminum jacket, acoustic layer, and are coated with a hot dipped galvanized finish. The supports will be used for a project in North Africa.
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PT&P fabricated 12 constant spring supports of various sizes with PTFE, 25% glass filled slide plates. The smallest constant is 38.25″ length x 13″ width x 28″ height, and the largest is 52″ length x 19″ width x 28″ height. The designed loads vary from 13,264 lb. to 15,962 lb. and the total travel range is 2″ to 3″.
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The constant spring hangers are manufactured from A36 carbon steel and have custom 4-bolt pipe clamps due to heavy loads. The dimensions are 40″ length x 18″ width x 85″ height and are designed for a 1,784 lb. load with 10″ of travel. The constants will be used to support radiant inlet manifolds and have a unique paint applied due to the highly corrosive condition. The entire pipe hanger assembly went through load and travel testing prior to shipping.
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PT&P manufactured a total of 1,400 supports for an LNG project. 75 of those supports were cold supports completed in less than one week on an emergency basis. The cold shoes were fabricated from a combination of polyurethane foam, carbon steel metal straps, and an aluminum metal jacket for insulation. They are designed for temperatures as low as -300°F and pipe sizes ranging from 12″ to 36″ in diameter. The 36″ diameter shoes are designed for a vertical load of 102,000 lb. and the 12″ diameter shoes are designed for 36,000 lb. load.
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PT&P fabricated big ton spring supports for an expedited delivery of six weeks from conceptual design to final delivery. The big tons measure 26″ long x 26″ deep x 34-5/8″ tall and will be used to support substantial vertical loads while simultaneously providing a base support structure. They are designed for operating loads of 36,000 lb. with a travel of .5625″ down.
Due to the harsh and corrosive environment, the exposed metal surfaces were finished with a three-coat urethane paint while the threaded components were cadmium plated with a blue Fluorocarbon coating. The big tons were also salt water spray tested according to ASTM B117 standards, and load tested to verify the springs’ functionality throughout the entire travel range.
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PT&P manufactured instrument stands from hot dipped galvanized carbon steel. The instrument stands are 52″ in height and have varying widths from 1 to 4′. They will be used to support instruments in a new Coker unit that is part of an oil refinery in Illinois.
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PT&P fabricated variable springs from hot-dipped galvanized carbon steel components and a neoprene coated spring steel coil. P.T.F.E. slide plates are welded to the load flange to reduce frictional forces generated during lateral movement of the supported pipe. Internal guides are also installed to help maintain vertical alignment of all moving components throughout the anticipated thermal deflection cycle. The installed (cold) load is set to 10,413 lb. With a design travel of 0.720” up, the final operating (hot) load will be 8,974 lb. Each spring is equipped with travel stops and went through load testing prior to shipping.
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Check out the new drawings and data tables, detailed ordering instructions, new product additions and improved pictorial index.
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