PT&P designed custom hold-down pipe clamps for pipe sizes ranging in diameters from 6″ to 14″ at a natural gas facility. The HD-3 is an arrestor type hold down used when there is very low thermal movement and these clamps are similar to them but differ due to their adjustable bases. These clamps are fabricated from galvanized carbon steel and include a neoprene lining to absorb vibration.
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PT&P custom designed “mini” big ton spring supports to support a large centrifugal fan at a chemical refinery in Texas. They are designed to support a total weight of 33,000 lb. within a maximum space envelope of 4″ wide x 16″ long x 8″ tall. As a result, these mini big-tons were fabricated using coils which could be placed in parallel within their respective frames. Four of the unites were comprised of four inner coils nested inside four outer coils to produce an operating load of 4,478 lb. and an overall spring rate of 2,740 lb./in. The smaller load capacity units were configured of four individual coils in parallel with an operating load of 3,735 lb. and a spring rate of 2,300 lb./in. The frame, load flange and all internal components were fabricated from carbon steel. The spring coils were fabricated from ASTM A-5160 spring steel. All supports were tested through their total working range to confirm load capacity and functionality.
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PT&P designed cryogenic trunnion supports for ethylene loss recovery lines at a plant in Texas. The trunnions were fabricated from 2″ dia. stainless steel pipes and have a maximum height of 3′. They include 6″ x 6″ permali® blocks measuring 2″ thick each. The permali® block isolator is a laminated phenolic material from layers of wood impregnated under vacuum and heat with synthetic resin. The temperature range for these supports is from ambient to -300°F.
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Custom designed cryogenic pipe supports were fabricated for an LNG facility in Africa. The shoes range in diameter from 30″ to 72″, 45″ to 88″ in height, 42-1/2″ to 85-1/2″ in width, and 28″ to 33″ in length. The insulation is a high density polyurethane foam (PUF) ranging from 5″ to 6″ thick. The shoe and bearing plates were fabricated from carbon steel with a HDG finish. The jacket was fabricated from aluminized steel and includes a vapor barrier.
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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. Increase your understanding of the value-added services that are offered by PT&P, and rest assured that your Pre-Insulated Pipe Support needs can be covered by our 24×7 web-based emergency services, providing field service, and quick-turn around time when you need it most.
The featured presenter, Jerry Godina has over 15 years experience as a pipe support designer and manages PT&P’s engineer training development program. He also inspects existing supports, consults on site remediation projects and oversees installation on a regular basis.
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PTP-2 160 C-Type variable spring support assemblies were designed and fabricated for an oil sands mine in Canada. The variables are 8″-12″ diameter, 16″ to 32-1/2″ overall length, and designed for an operating load of 5590 lb. with an upwards travel of 0.787″. 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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These custom designed sway braces and variable spring assemblies were designed for hanger duct work in an aerospace development facility. The assemblies measure 67-1/2″ long with a 14-1/8″ O.D. The variables are a modified F-type spring with a pivoting base and non-standard coil combination, including a nested spring design. The assemblies include fully adjustable travel stops and custom end brackets. They are fabricated from carbon steel and designed for load ranges between 1100 lb. and 9250 lb. with a spring rate of +/- 2.78″.
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These custom designed PTFE slide plate and pipe shoe assemblies are fabricated from A 516 Gr. 70 carbon steel and painted to protect against corrosion. The slide plates are comprised of 3/32″ PTFE, 25% glass filled material bonded to 10 gauge backing plates. A total of twenty guided cradle supports were designed for pipes ranging in diameter from 8″ to 30″.
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These custom adjustable pipe saddle supports were designed for an oil refinery in Michigan. They will support 24″ and 30″ diameter pipes and range in height from 40″ to 42″. The pipe saddles can be vertically adjusted by turning the middle section of the seamless pipe and the base plates have been pre-drilled to accept anchor bolts. They are fabricated from carbon steel with a red oxide finish to protect against corrosion and were shipped within two weeks.
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PT&P designed and fabricated forty-seven hold-down pipe clamps for a coal fired power plant in Louisiana. The hold-downs are fabricated from carbon steel and range in size from 2″ to 10″ in diameter. The HD-3 is an arrestor type hold down used when there is very low thermal movement. Its radius is lined with a belting material that is well designed to absorb shock from vibration.
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