Hydraulic Snubber and 3-Bolt Clamp Assemblies for a Refinery Expansion Project

November 3, 2009
Hydraulic Snubber and 3-Bolt Clamp Assemblies
Hydraulic Snubber and 3-Bolt Clamp Assemblies (Item #2 & #3)
Hydraulic Snubber and 3-Bolt Clamp Assemblies for a Refinery Expansion Project
Hydraulic Snubber (Item #1)

Fronek Anchor/Darling Enterprises, Inc. and PT&P designed and fabricated hydraulic snubber and 3-bolt clamp assemblies for a refinery expansion project in Louisiana. A cycle test throughout the full stroke from zero to fully extended was performed prior to shipping.

Item #1: C-C: 61″, stroke: 12″, cylinder size: 5″ dia., max. load: 50,000 lb., 3-bolt clamp: A240 Gr. 304 SS, pipe size: 12″

Item #2: C-C: 71-7/8″, stoke: 6″, cylinder size: 4″ dia., max. load: 30,000 lb., -bolt clamp: A-36 carbon steel, pipe size: 16″

Item #3: C-C: 85-5/8″, stoke: 6″, cylinder size: 4″ dia., max. load: 30,000 lb., -bolt clamp: A-36 carbon steel, pipe size: 16″

Do you see a need for snubbers or clamps in your piping system? Get pricing today!
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48 Sway Braces for a Refinery Expansion Project.

October 27, 2009
48 Sway Braces for a Refinery Expansion Project
48 Sway Braces for a Refinery Expansion Project

The carbon steel sway braces for this project range in length from 88-3/8″ to 95-3/4″. The largest sway brace has an operating load of 18,000 lb., a design travel of 12″ in either compression or extension, and a spring rate of 1416 lb. per inch. The smallest sway brace has an operating load of 7000 lb., a design travel of 8″ in either compression or extension, and a spring rate of 1000 lb. per inch.

The anticipated loads and movements exceed those of the largest standard PT&P sway brace; therefore, these sway braces required a custom design and fabrication. Each of the 48 sway braces are configured with a unique combination of spring coils, housings, and internal components to accommodate the non-standard loads and movements.

Do you require sway braces for a current or upcoming project? Let us price them for you!
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Sway Strut Assemblies with Custom Designed 3-Bolt Pipe Clamps

May 13, 2009

 

Sway Strut Assemblies with Custom Designed 3-Bolt Pipe Clamps
Sway Strut Assemblies with Custom Designed 3-Bolt Pipe Clamps
These sway strut assemblies are designed in conjunction with custom three-bolt clamps to prevent movement on the pipeline. The sway struts range in length from 25″ to 70″ from pin to pin. The operating load ranges between 8,000 lb. to 15,000 lb. The clamps are designed for pipe sizes ranging from 8″ to 24″. The sway strut assemblies are fabricated entirely from carbon steel with a hot-dipped galvanize finish. The completed assemblies also include a custom 2-coat paint system that was applied over the galvanize finish before being shipped to an LNG plant overseas.

Do you see a need for sway struts in your piping system? Get pricing today!
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126″ Long Sway Braces for a Power Plant

April 22, 2009
126" Long Sway Braces for a Power Plant
126" Long Sway Braces for a Power Plant
126" Long Sway Braces for a Power Plant
Sway Braces

These PT&P sway braces are fabricated from carbon steel and measure 126″ from pin to pin. They use an integral piston assembly with guide to eliminate any buckling and/or misalignment during extension and compression. The sway braces are designed for 10 1/2″ of travel and a load of 1,500 lb. A combination of standard spring coils is used to achieve the required spring rate of 150 lb./in.

Prior to shipment, a test was performed using a hydraulic ram. This test simulated actual field conditions and allowed the sway brace to move through the entire travel range in both compression and extension modes.

Want to learn more about sway braces? Watch a shock & vibration control webinar now!
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Ball-Joint Sway Strut Assemblies (20,000 lb. load, 96″ long) for an Ammonia Plant

October 22, 2008
Ball-Joint Sway Strut Assemblies (20,000 lb. load, 96" long)
Ball-Joint Sway Strut Assemblies (20,000 lb. load, 96" long)

The overall length of each sway strut is 96 inches. The pipe hanger assembly is designed to control 20,000 lb. of piping load during the system’s thermal expansion and contraction.

These sway struts have a ball joint located at each end connected by an extension rod that controls the piping system through its complete range of thermal piping movements. It is used to restrain movement of piping in one direction while providing for movement due to thermal expansion or contraction in another direction.

Do you require sway struts in your current or upcoming project? Get pricing today!
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Carbon Steel Limit Stops

October 8, 2008

 

 
Carbon Steel Limit Stops
Carbon Steel Limit Stops

These limit stops are fabricated from carbon steel with stainless steel inner components. These supports function to prevent excessive stress on the pipe by limiting motion due to earthquakes or other similar events.

They range in size between 20 7/8″ and 22 7/8″ from pin to pin. The load ranges between 12,500 lb. and 21,100 lb. The limit stops are passive restraints that are designed for a maximum thermal expansion of 5″, but can be preset for any specified amount of movement. They will be utilized in an oil refinery overseas.

Do you see a need for limit stops in your piping system? Get pricing today!

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140,700 lb. Load Hydraulic Snubbers

March 5, 2008
140,700 lb. Load Hydraulic Snubbers
140,700 lb. Load Hydraulic Snubbers
140,700 lb. Load Hydraulic Snubbers
Side View of Snubber

Anchor/Darling Enterprises, Inc., a wholly owned subsidiary of Piping Technology & Products, Inc. designed and fabricated these hydraulic snubbers for a power plant in Turkey. They are adjustable type snubbers with two rear brackets. The hydraulic snubbers can absorb loads up to 140,700 lb.

Design:

Temperature: 375°F
Pressure: 1,750 PSIG
Stroke: 6″

Do you see a need for snubbers in your piping system? Get pricing today!
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240" Sway Strut for a Local Refinery

September 19, 2007
240" Sway Strut for a Local Refinery
240" Sway Strut for a Local Refinery

This sway strut is fabricated from carbon steel and measures 240″ from pin to pin. The pipe is 6″ in diameter and has a load capability of 15,000 lbs. The components were completed with a hot-dipped galvanize finish and the pipe was coated with a shop primer. The function of a sway strut is to restrain movement of piping in one direction while providing for movement due to thermal expansion or contraction in another direction.

This particular sway strut will support a 30″ process line in a refinery. This type of support is necessary, because the current line has only a few I-beams for support. Additionally, the I-beams that support the line are very high off the ground and not capable of handling the large forces acting on the line. Due to the loads acting upon the pipe and length of the required strut, a heavy schedule pipe and heavier duty strut ends were necessary.

Do you require sway struts in your plant or refinery? Get pricing today!
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Mechanical Snubbers for a Refinery

May 15, 2007
Mechanical Snubbers for a Refinery
Mechanical Snubbers for a Refinery

Sizes of mechanical snubbers for this project range between 18″ and 80″ in the retracted position. The maximum load capacity ranges between 700 and 10,000 lb. Mechanical snubbers function to restrain thermal movement in abnormal circumstances such as earthquakes, hydraulic hammer, and upstream pipe rupture. The snubbers were tested at both high and low rates of loading on a computer controlled hydraulic test machine to ensure quality assurance.

Do you require mechanical snubbers in your piping system? Get pricing today!
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Sway Braces with Ball Joints

September 13, 2006
Sway Braces with Ball Joints
Sway Braces with Ball Joints
Sway Braces with Ball Joints
Sway Braces with Ball Joints

These special sway braces that are subject to the banana effect were designed to specific requirements for a Coker Plant in Texas. With deflection capability of up to plus or minus 9″ in all directions, these sway braces are used to stabilize tall stacks. Five springs in tandem prevent binding during operation, and are necessary due to extreme length. The sway braces ranged from 70″ to 144″ in length and can handle up to 8,000 lbs. The precision machined pivoting ball joints positioned at each end allow for freedom of movement in any unpredictable direction.

Do you see a need for sway braces in your current job? Get pricing today!
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