24″ Diameter HD-2 Hold-down Clamps for a Natural Gas Plant in Colorado.
PT&P designed and manufactured these standard HD-2 hold-down clamps for a natural gas plant in Colorado. They are fabricated from carbon steel and designed with PTFE slide plates. The hold-downs are designed for 8″ to 24″ diameter pipes and operating temperature up to 400°F.
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Compact Disc Spring Support Designed for a Heat Exchanger Application
In this application, the heat exchanger (vertical vessel), has thermal movement of 1/4″, vertically. As it expands thermally, the vessel lifts off its support structure and additional forces at the vessel’s lower nozzle are created. With many heat exchangers, as well as other process equipment, the space between the support structure and equipment is restricted. In this case, the space between the cantilever clamp attached to the vessel and the support structure is limited to only 5.1″. This lack of space is unsuitable for placing the conventional spring supports which require more space.
The Compact Disc Spring support is designed to support large loads in small confined spaces with limited thermal movement (from 0 to 3/4″). By supporting the vessel with Disc Springs, the thermal movement is allowed (or relieved), which helps reduce the excessive loads and local stress on the nozzles. This results in compliance with the ASME Piping and Vessel Codes. Due to a corrosive chemical plant environment, the two Compact Disc Spring supports were supplied with engineered 17-7PH Stainless Steel Belleville Disc Springs to combat corrosion.
PT&P custom designed pre-insulated pipe supports with polyurethane insulation for cryogenic temperatures in a light hydrocarbon production facility in Texas. A total of 59 cold shoes were fabricated from A36 carbon steel with a hot-dipped galvanized finish. The cold shoe assemblies range in diameter from 24″-48″ and were designed to support loads ranging from 17,000 to 31,000 lb. Standard Q.C. and dimensional tests were performed prior to shipment.
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This presentation will cover Pre-Insulated Pipe Supports, including pipe insulation products for both cryogenic and heat applications. Learn about the different types of insulation materials and get the inside scoop on our cold shoe design. Explore how Polyurethane foam is produced, from mixing polyols and isocyanates to inspecting the final product. Learn about anchor shoe testing, lateral load testing, compressive strength testing, and axial load testing.
The featured presenter, David Baker has over 12 years experience with pre-insulated pipe supports, on-site surveys, inspections, Installation and Maintenance. He is also the manager of PT&P’s Field Service division and our in-house consultant for pre-insulated pipe supports.
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PT&P designed C-Type variable spring support assemblies for a power plant in Louisiana. They are designed for operating loads ranging from 1,319 to 2,800 lb. with an upwards travel ranging from 0.11″ to 0.34″. The variables were fabricated from carbon steel with a hot-dipped galvanized finish and standard load and travel testing was completed prior to shipment
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This presentation will cover Pipe Clamps, including Hold-Down Clamps, Riser Clamps, Clevis Hangers, Yoke U-Bolt Clamps and Structural Supports. Learn how the appropriate type of pipe support is chosen based on the different design conditions. Find out how Finite Element Analysis is used in the design process and view the custom pipe supports designed for extreme applications.
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PT&P custom designed sway struts for a chemical plant located in Texas. The sway struts and rod hangers are both fabricated from carbon steel. The overall length of the support assemblies’ range from 31″ to 83″ and are capable of supporting loads up to 1,750 lb., with an operating temperature of 1100°F and 1 1/2″ of vertical movement. The sway struts are designed to restrain movement in one direction while providing movement due to thermal expansion or contraction in another direction.
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PT&P custom designed pipe hanger and clamp assemblies for a flue-gas desulfurization application in an energy facility located in Kansas. The assemblies are designed for pipes ranging in size from 2-1/2″ to 6″ in diameter, and are capable of a 650 lb. operating load. Materials include tube steel, fig. 92 washer, fig. 122 all threaded rod, fig. 30 turnbuckle, fig. 40 weldless eyenut and fig. 70 pipe clamp.
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PT&P designed spring loaded stainless steel roller stands for a wastewater treatment plant. The rollers were custom designed for ease of assembly to support a 30″ diameter pipeline. They include eight springs in two spring housings and are designed for 1,000 lb. load. The base plate is 18-3/4″ x 13″ and the BOP is 10-3/16″. Roller stands are used to support pipelines that expand and contract longitudinally in the axial direction and where vertical adjustment is not necessary.
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PT&P manufactured F-type variable spring supports for a chemical processing plant in Texas. The variables are designed with an internal guide and for a movement of 0.09″. They are designed for a 5,350 lb. cold load and 5,450 lb. hot load. Because these springs had to be capable of withstanding a hydro-test in excess of 33,000 lb. (which substantially exceeded the standard maximum hydro-test of 18,000 lb.), special collars were used in conjunction with the standard travel stops. These collars are designed to absorb the large hydro load by relying on the high strength characteristics of the load flange and housing components of the assembly while essentially bypassing the threaded internal components.
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