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72” Roller Stands for a Cooling Tower

December 3rd, 2003 No comments
72” Roller Stands for a Cooling Tower

72” Roller Stands for a Cooling Tower

PT&P fabricated heavy-duty roller stands, 60” and 72” in diameter, to support large pipes in a cooling tower. The roller stands support loads up to 60,000 lbs. while allowing the pipe axial movement during temperature fluctuation. To reduce friction the rollers are fabricated out of machined carbon steel. The round bar and the stands are fabricated from A-36 carbon steel plate.

Do you require roller stands in your piping system? Let us price them for you today!
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27′ x 16′ x 21′ Structural Frame for an Offshore Site

October 24th, 2003 No comments
 27' x 16' x 21' Structural Frame for an Offshore Site

27' x 16' x 21' Structural Frame for an Offshore Site

 27' x 16' x 21' Structural Frame for an Offshore Site

Base in Fabrication Process

 27' x 16' x 21' Structural Frame for an Offshore Site

Structural Base in Painting Phase

 27' x 16' x 21' Structural Frame for an Offshore Site

PT&P custom designed and fabricated a 27′ x 16′ x 21′ structural frame to be placed on the sea-bed for an offshore rig. This assembly will be used as an undersea cable support frame, capable of withstanding a load of 600 Kilonewtons (68,000 lbs for each pad). It is constructed of 8 tube-steel, a 10 channel, and a steel plate. The frame will remain stationary on the sea-bed and is designed to endure heavy wave action when lowered to or raised from the sea-bed.

Finite element analysis of the lifting lug on the structure was performed to verify load conditions.  A trial fit-up of bolted sections was also conducted to ensure the structural frame will assemble easily before being placed in position.

Do you require a structural frame for your current or upcoming project? Get pricing today!

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1,520 Spring Assemblies for a Chemical Plant

July 18th, 2003 No comments
1,520 Spring Assemblies for a Chemical Plant

1,520 Spring Assemblies for a Chemical Plant

PT&P recently manufactured 1,520 PTP-2 and PTP-4 spring hanger assemblies designed specifically for a furnace application. These custom variable springs have welded components as opposed to bolted components found in standard assemblies. Due to the space limitation within the furnace, the spring coils were set in a welded housing which allows for the springs to be closely oriented within a smaller spatial envelope. The pipe hanger assemblies are made from carbon steel, consisting of variable spring, rod, and riser clamp components. Instead of galvanizing, the assemblies were coated with a red-oxide primer due to the high temperature operating conditions of the furnace. This prevents the possibility of molten zinc (from the galvanizing process) contaminating the furnace tubes.

1,520 Spring Assemblies for a Chemical Plant

1,520 Spring Assemblies for a Chemical Plant

The springs are designed for loads of 143 to 660 lbs. and for total travel ranging from 3/4 to 2″. Each assembly was pre-assembled to ensure free movement throughout the spring’s travel range before welding the bottom closure plate. Prior to shipment, all assemblies were calibrated to determine the exact spring rate and then were set to the customer’s designated cold load position. These springs are then located and installed into the furnace based on the spring rate.

Do you see a need for spring assemblies in your piping system? Get a quote today!

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3 Custom Built Disc-Spring Arrestors with Clamps

February 28th, 2003 No comments
3 Custom Built Disc-Spring Arrestors with Clamps

3 Custom Built Disc-Spring Arrestors with Clamps

The disc-spring arrestors provide resistance by utilizing disc springs (sometimes referred to as Belleville® washers) stacked in a series within the assembly housing to produce a specific spring rate.  By utilizing large (over 8 diameter) disc springs, very high spring rates may be obtained.  The arrestors are capable of operating in both tension and compression.

The housing, end bracket, and extension pieces of the spring arrestor are made form A-36 carbon steel. The disc springs are made from ASTM A-1075 spring steel. One clamp (for design temp. of 688 degrees F.) was made from carbon steel and two clamps (for design temp. of 1054 degrees F.) were fabricated from A-387 GR.22 Chrome-Moly steel.

The diameter of each disc spring was 9 with a thickness of 1. The overall pin-to-pin dimension for the assemblies varied with a minimum of 35 and a maximum length of 57. The maximum length that can be accommodated is 120. The clamps were made for 18 and 30 diameter pipes.

The shock arrestor will see a maximum operating load of 43,000 lbs. The spring rate of each arrestor was designed at 40,000 lb./in. The spring arrestors are designed for a maximum displacement of 2. The arrestors were tested to verify spring rate and to confirm the operation of the pipe hanger assembly.

Do you have a need for spring arrestors or pipe clamps in your current or future project? Get pricing today!
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6′ x 13 ½’ Steel Pipe Support Structure

December 20th, 2002 No comments
6' x 13 ½' Steel Pipe Support Structure

6' x 13 ½' Steel Pipe Support Structure

This 6′ x 13 ½’ pipe support structure is made of carbon steel and also includes beams, plates, and angles. Several of these structures were made for sites in Texas that convert landfill gas to energy.

Do you see the need for steel pipe support structures in your piping system? Get pricing now!


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Stanchions and Beams for a Power Center

October 18th, 2002 No comments
Stanchions and Beams for a Power Center

Stanchions and Beams for a Power Center

Piping Technology & Products, Inc. designed and manufactured carbon steel and alloy stanchions for a power center in Arizona.  PT&P also produced carbon steel beams for the project.

These stanchions are made to fit Extra Strong and Standard pipes, which are 3-12 in size. Figure 1 shows the stanchions and beams for this job before they were coated with a green primer and prepared for shipment.

Do you see a need for stanchions and beams in your power plant or refinery? Get pricing today!

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Hold Down Clamps for an Engineering and Construction Company

August 2nd, 2002 No comments
Hold Down Clamps for an Engineering and Construction Company

Hold Down Clamps for an Engineering and Construction Company

Piping Technology & Products manufactured 2″ hold down clamps (figure HD-1) for an engineering and construction company.

The figure HD-1 is PT&P’s anchor type hold down and is usually used on pipe lines where little or no insulation is required. These hold down clamps were constructed of SA36 carbon steel for temperatures to 750ºF.

Need hold down clamps? We’re happy to serve your needs!

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C-Type Constants

May 3rd, 2002 No comments
 C-Type Constants

C-Type Constants

Piping Technology & Products, Inc. designed and manufactured 70 horizontal, C-type constants for a furnace application located in Venezuela.

 C-Type Constants

C-Type Constants

The sizes of the Figure 200 constants ranged from 32 to 64, with a total travel of 4.5 to 10.5, and loads varying from 1,149 to 5,149 pounds. The constants are provided with a custom designed PT&P Figure 270, which consists of a double lug horizontal traveler versus a single lug. Within the horizontal travel, the constants are designed to handle 8 of horizontal movement and support a rod that remains vertical throughout pipe movement.

Learn about other types of constants by visiting our webinar archives!



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Sway Braces for Petroleum Company in Louisiana

December 14th, 2001 No comments
Sway Braces for Petroleum Company in Louisiana

Sway Braces for Petroleum Company in Louisiana

Piping Technology & Products, Inc. specially designed and fabricated ten sway braces, with total travel distance of 14, for a petroleum company in Louisiana.

The standard PT&P braces have springs that allow 3 of total travel distance. These sway braces were custom designed to provide total travel distance of 5 and 14. The center-to-center dimensions ranged from 92¼” to 115″ with internal supports to prevent buckling. The desired spring rates for the sway braces were 450 lb./in. and 1350 lb./in. The custom sway brace assemblies comprised of pipes (for spring housing), springs (sizes dependent on spring rate and total travel) and in some cases, ball joints.

Do you need sway braces for an upcoming project? Request a price quote today!

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Big Ton Springs With Loads Up To 450,600 Newtons

November 28th, 2001 No comments
Big Ton Springs With Loads Up To 450,600 Newtons

Big Ton Springs With Loads Up To 450,600 Newtons

Piping Technology & Products, Inc. specially designed and fabricated Big Ton Variable Springs for a chemical project in Canada. The supporting beams are 30″ in length with PTFE, 25% glass filled stainless steel slide plates. The Big Ton Springs were designed with six coil springs with external guides to prevent horizontal twisting and internal guides to withstand horizontal friction forces. These units were also designed for operating loads from 260,000 to 350,000 Newtons and hydro-test loads from 300,000 to 450,600 Newtons. A total of six units were painted with a special finish specified by the client.

Need a big ton? Get pricing today!

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Mailing: P.O. Box 34506, Houston, TX 77234-4506 Location: 3701 Holmes Road, Houston, TX 77051
Our Subsidiaries: U.S. Bellows: Metallic & Fabric Expansion Joints, Bellows
Sweco Fab: ASME Vessels, Pig Launchers, Spectacle Blinds
 Pipe Shields: Pre-Insulated Pipe Supports, Slides, Guides & Anchors

Fronek Anchor/Darling
: Snubbers, Sway Struts & Sway Braces
Phone: (713) 731-0030 Toll-Free: (800) 787-5914 FAX: (713) 731-8640 info@pipingtech.com

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