Sway Braces Designed to Absorb Pipeline Vibrations Leading into a Containment Shelter

April 19, 2022

Sway Braces Designed to Absorb Pipeline Vibrations Leading into a Containment Shelter

PT&P manufactured Fig. 550B Sway Braces for preventing excessive loading on 12″ diameter flanged expansion joints leading into a containment shelter. The sway braces include our Fig. 30 Forged Turnbuckles, spring casing. and size 3 spring coils along with other internal components. They are fabricated from carbon steel, hot-dipped galvanized, and designed for a spring rate of 450 lb./in. These sway braces measure 91-3/8″ pin-to-pin and are suitable for full deflection forces from 200 to 1,800 lb. Initial pre-compressed spring forces are from 50 lb. to 450 lb. to dampen vibrations, oppose pipe sway and absorb shock forces.

Fig.550b sway braces

Sway braces are recommended for controlling vibration, absorbing shock loadings; guiding or restraining the movement of the pipe resulting from thermal expansion; bracing a pipeline against sway. The vibration control and sway brace is shipped and ready for installation. The rod coupling rotates with slight resistance and the tension test collar can be rotated by hand while holding the rod stationary.

The sway brace should be in the neutral position when the system is hot and operating, at which time the tension test collar should be hand tight. If it is not, the sway brace should be adjusted to the neutral position by use of the load coupling. The screws in the tension test collar need not be loosened, since they serve only to secure it to the load coupling.

 

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Sway Strut Assemblies Designed for an 8,000 lb. Load at an LNG Train

January 11, 2022

Sway Strut Assemblies Designed for an 8,000 lb. Load at an LNG Train

PT&P manufactured sway struts for one of the largest LNG (Liquefied Natural Gas) operations in the world. LNG, considered a “Clean Energy” and recognized as the cleanest fossil fuel, is used in several ways in our daily lives for heating, cooking, and generating electricity. LNG is also used commercially to manufacture products like fertilizers, paper, glass, clothing, food processing, medicines, commercial vehicles in addition to generating electricity. The use of LNG helps to reduce greenhouse gas emissions which helps to combat global warming. Piping Technology & Products manufactures sway struts for use in a wide range of applications in power, refineries, chemical, and solar plants to restrain movement in tension (or X plane) while allowing lateral movement (in the Y and Z plane). These Fig. 2100-F sway struts are designed with 4″ adjustment for loads up to 8,000 lb. The pins are fabricated from high alloy steel for added strength and the threaded rod ends are carbon steel and hot-dipped galvanized. The sway strut body was hot-dipped galvanized after the donut and pipe were welded. The rod ends and end brackets were galvanized a second time for added corrosion resistance after the holes for the IKO bearings and pins were enlarged to fit these component parts. The C-C dimensions are 42-1/4″, 41-1/2″, and 28″. A quality control inspection involving thread engagement and overall visual inspection was completed before shipment. In addition to sway struts, we have supplied over 3 million supports to LNG plants all over the world. PT&P has been a key supplier in LNG piping systems for almost every operator today.

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Sway Struts Designed for an LNG Liquefaction and Export Facility

June 21, 2021

Sway Struts Designed for an LNG Liquefaction and Export Facility

These sway strut assemblies were designed and fabricated for a large LNG liquefaction and export plant. Sway struts are used in a wide range of applications in power plants, chemical and refineries to restrain movement in tension (or X plane) while allowing lateral movement (in the Y and Z plane). These fig. 2100F, size C sway struts are designed with 4” adjustment for loads up to 4,500 lb. The pins are fabricated from a high alloy steel for added strength and the threaded rod ends are carbon steel and hot-dipped galvanized. The sway strut body was hot-dipped galvanized after the donut and pipe were welded. The rod ends and end brackets were galvanized a second time for added corrosion resistance after the holes for the IKO bearings and pins are enlarged to fit these component parts. The C-C dimension is 30-11/16” and a quality control inspection involving thread engagement was completed prior to shipment. Piping Technology and Products is a manufacturer of all types of pipe supports to areas all over the world ranging from sports stadiums to geothermal to infrastructure applications. In fact, many of the items you will see on our website were developed for the specific requirements of a customer who could not use the standard designs available in our industry. If you do not find what you need, or if you need technical advice, please contact us.

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Custom Sway Braces Designed for Coker Units

March 9, 2020

 

Sway Braces Custom Designed for Coker Units at an Oil Refinery in the Virgin Islands

 

Type: Custom Sway Braces with Ball Joints
Material: A36 Carbon Steel | Hot-dipped Galvanized
Testing: Standard Load Testing & Q.C. Inspection

PT&P custom-designed sway braces on an urgent basis to replace existing sway braces at an oil refinery in the Virgin Islands. These sway braces will be used in coker units that have long displacements. They are fabricated with ball joints at both ends due to the “banana effect”. The casing, pipe, coils, threaded rods, turnbuckle, ball joints, etc. are all fabricated from carbon steel with a hot-dipped galvanized finish.

The maximum loads, spring rates and movements for the sway braces are as follows:

Max Load (lb) Spring Rate (lb/in) Max Movement (+ / – in)
2475 90 10″
3800 267 3-3/4″
3480 120 9″
2500 200 2″

Learn more about our sway brace products and place an order with us today!

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Sway Strut & 3-Bolt Pipe Clamp Assemblies

August 12, 2019

 

Sway Strut & 3-Bolt Pipe Clamp Assemblies Designed for a Power Plant in California

Type: Sway Strut & 3-Bolt Pipe Clamp Assembly
Size: 30″ NPS | 44-1/8″ CC | 4″ Adjustment
Material: Carbon Steel | 304 Stainless Steel
Design: Restrain Tensile/Compressive Force in 1 Direction
Permit Movement in Other Directions

PT&P fabricated and designed sway strut and 3-bolt pipe clamp assemblies for a power plant in California. The assemblies are manufactured from carbon steel with 304 stainless steel load pins. They are designed for a 30” diameter pipe. The sway strut has a cc of 44–1/8” and 4” adjustment. The sway struts are designed to restrain either tensile or compressive force in one direction while providing for movement due to thermal expansion or contraction in other directions.

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Mechanical Snubbers Designed for an Industrial Chemical Plant in Brazil

March 11, 2019

Mechanical Snubbers Designed for an Industrial Chemical Plant in Brazil

Type: Mechanical Snubbers
Size: Length: 40-3/8” to 60-3/4″
Material: Carbon Steel | Hot-dipped Galvanized | Paint
Design: 1,000 lb.  – 6,000 Load | Stroke: 4″ – 5″

PT&P designed mechanical snubber assemblies for an industrial chemical plant in Brazil. This project included mechanical snubber assemblies along with, insulated, constant, variable, and structural supports. The operating load ratings are from 1,000 lb. to 6,000 lb., and lengths range from a 40-3/8” to 60-3/4″ pin to pin. The snubbers have a 4” to 5” of stroke. All the assemblies were designed with a carbon steel pipe extension pipe, transition plate, heavy hex nuts, and adapter brackets. The snubbers are hot-dipped galvanized and painted to protect against corrosion. Visual tests and pull test were performed.

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Sway Braces Designed for a Mechanical Equipment Supplier

May 14, 2018

Sway Braces Custom Designed for a Mechanical Equipment Supplier

Type: Fig. 555 Sway Braces
Size: 34-7/8” to 42-1/4″
Material: A36 carbon steel | Hot-dipped Galvanized
Design: 17,827 lb. Ld. | 12″ Travel | 7,200 lb. Spring Rate

PT&P custom designed Fig. 555 sway braces for a mechanical equipment supplier in Canada. The sway braces are fabricated from carbon steel, hot-dipped galvanized and range in length from 34-7/8” to 42-1/4″. The largest sway brace was designed for an operating load of 17,827 lb., a design travel of 12″ in either compression or extension and a spring rate of 7,200 lb. per inch. The smallest sway brace was designed for an operating load of 200 lb., a design travel of 9″ in either compression or extension and a spring rate of 1,800 lb. per inch.

The specified loads and/or movements exceed those of PT&P’s standard sway brace; therefore, these sway braces required a custom design and fabrication. Each sway brace was configured with a unique combination of carbon steel, spring coils, housings and internal components to accommodate the non-standard loads and movements.

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Hydraulic Snubbers Designed for a Steam Generator in Mexico

February 26, 2018

Hydraulic Snubbers Designed for a Steam Generator in Mexico

Type: Hydraulic Snubbers
Size: 24″ up to 30″ Pin-To-Pin | Cylinder Dia. 1.5″ to 3.25″
Material: Carbon Steel
Design: 3,000 lb. to 20,000 lb., with a 6″ Stroke
Testing: Standard Quality Control

PT&P designed Fig. 510 AD short strut hydraulic snubbers for a steam generator at a facility in Mexico. The snubbers ranged in length from 24″ up to 30″ pin-to-pin with cylinder diameters of 1.5″ to 3.25″. A total of 48 snubbers were fabricated from carbon steel and designed for an operating load ranging from 3,000 lb. to 20,000 lb., with a 6″ stroke. Snubbers are used for systems where unrestrained thermal movement must be allowed except during cyclic disturbance. Hydraulic snubbers are designed to protect the piping system when a sudden, heavy load is applied (such as an earthquake of high intensity), which can cause serious vibrations leading to damage and possible failure of the piping system.

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Mechanical Snubbers for a Refinery in Oklahoma

May 5, 2017

Mechanical Snubbers for a Refinery in Oklahoma

Type: Mechanical Snubbers
Size: Size MSA-10, 36″ OAL, and 30 1/2″ Pin-To-Pin
Material: Carbon Steel with HDG Finish
Design: Operating load of 15,000 lbs and a 6″ Maximum Stroke
Testing: Standard Load Tests

Piping Technology & Products supplied these mechanical snubbers with two end brackets, fabricated from carbon steel with an HDG finish for a refinery in Oklahoma. They are size MSA-10, 36″ OAL, and 30 1/2″ pin-to-pin. The snubbers are designed for an operating load of 15,000 lbs and have a 6″ maximum stroke. Standard load tests were performed prior to shipment. Mechanical snubbers have two modes of operation. In passive mode, i.e., motion caused by thermal loads, the resisting mechanism is disengaged and the snubber “free wheels” with very low resistance. In active mode the mechanism is engaged, and the snubber limits the acceleration to a low threshold value.

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Hydraulic Snubbers for an Ammonia Plant in Louisiana

November 23, 2016

Hydraulic Snubbers for an Ammonia Plant in Louisiana

Type: Hydraulic Snubbers
Design: 3,000-15,400 lb load/5″-12″ stroke
Material: Carbon Steel
Size: 31″ up to 148″ pin-to-pin and cylinder diameters from 2.5″ to 5″

Piping Technology & Products designed these hydraulic snubbers for an ammonia plant in Louisiana. The snubbers ranged in length from 31″ up to 148″ pin-to-pin and cylinder diameters from 2.5″ to 5″. They are designed for an operating load raging from 3,000 lb. to 15,400 lb. and have a 5″ to 12″ stroke. Hydraulic snubbers are designed to protect the piping system when a sudden, heavy load is applied (such as an earthquake of high intensity), which can cause serious vibrations leading to damage and possible failure of the piping system.

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