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  Experienced Manufacturer of Pipe Supports since 1978
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The Pipe Supports Blog

Variable Assemblies with Pre-Insulated Pipe Clamps

April 11th, 2003 No comments
Variable Assemblies with Pre-Insulated Pipe Clamps

Variable Assemblies with Pre-Insulated Pipe Clamps

Variable Assemblies with Pre-Insulated Pipe Clamps

Pre-Insulated Pipe Clamp

Piping Technology & Products, Inc. designed and manufactured several variable assemblies with pre-insulated pipe clamps for a chemical company in Texas. These assemblies are constructed of galvanized carbon steel hangers and hardware with Marinite® insulation.  The fabricated clamps range in size from 10″ to 30″, insulation thickness of 1″ to 8″ and with spring hanger sizes 80-180 standard, double, and triple variable spring hangers.

Do you require variable springs or pre-insulated pipe clamps? Let us price them for you today!
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April 2003 News

April 4th, 2003 No comments

Keeping Ahead of the Competition

  • Highest, Consistent Performance Balance of Plant Piping Materials Award from Bechtel
  • Scored 100% on Calpine’s Monthly Alliance Quality Performance
  • Obtained ICBO Certification
  • U.S. Bellows is now a proud member of EJMA

58 Large Diameter Floating Rings for a Refinery in Saudi Arabia

April 4th, 2003 No comments

58 Large Diameter Floating Rings for a Refinery in Saudi Arabia

58 Large Diameter Floating Rings for a Refinery in Saudi Arabia

58 Large Diameter Floating Rings for a Refinery in Saudi Arabia

Welding a Large Diameter Floating Ring

58 Large Diameter Floating Rings for a Refinery in Saudi Arabia

58 Large Diameter Floating Rings

Sweco Fab, Inc. recently designed and fabricated 58 floating rings for a Refinery in Saudi Arabia. Ranging from 40″- 155″ in diameter and 12″- 18″ in height, these rings weigh more than 1,500 lbs. each and are made from SA240-316H stainless steel plate with thickness of 1/2″ – 1 1/2″. All rings are fabricated by Full Penetration Weld and examined by dye penetration test.

Do you require floating rings for your current or future project? Let us price them for you today!
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14,000 lbs. Load Hydraulic Shock Snubbers

March 28th, 2003 No comments
14,000 lbs. Load Hydraulic Shock Snubbers

14,000 lbs. Load Hydraulic Shock Snubbers

Piping Technology & Products recently designed and manufactured four fig. 2100 hydraulic shock snubbers for a refinery in California. Carbon steel was used to manufacture these snubbers. They support a maximum load of 14,000 lbs., have a 3” cylinder, and 5” stroke load.  This was a custom job where the customer provided the figure number, cylinder size, and stroke load; we built the snubbers according to these specifications.

Do you see a need for hydraulic snubbers in your piping system? Get pricing today!
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200 U-Type Constants with 46" of Travel

March 21st, 2003 No comments
200 U-Type Constants with 46" of Travel

200 U-Type Constants with 46″ of Travel

200 U-Type Constants with 46" of Travel

200 U-Type Constants with 46″ of Travel

Piping Technology & Products, Inc. recently designed and manufactured 200 U-Type upthrust constants for a geothermal plant in Hawaii. The constant pictured on the left has frame dimensions of W 40″ x H 75″ x L 142″, a constant load of 9,888 lb. to 10,239 lb. and a design travel of 46″. It also utilizes rollers and PTFE, 25% glass filled slide plates to reduce the friction resulting from axial movements. All the constants in this project are composed of A36 carbon steel. Standard load testing and travel testing were conducted prior to shipment.

Do you require custom constants like those described above? Let us price them for you today!
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Special Application Variable Springs and Constant Supports

March 19th, 2003 No comments
Special Application Variable Springs and Constant Supports

Special Application Variable Springs and Constant Supports

The three pictures above show materials being crated for shipment overseas. At the top center are pallets of variable springs designed for 10” of movement and 1000 pound load. This unusual combination of requirements is satisfied by an unusually long coil. This project required 700 of these variables. At the bottom center are constant supports designed for 14” of movement with loads near 2000 pounds. This large movement, unusual for this load, requires the large arc seen in the frame of the constant body. Two hundred of these constants were required. These spring supports are painted with a shop prime.

Do you see a need for variable or constant springs in your piping system? Get pricing today!

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Pipe Shoes and Stand Assemblies for a Cross-Generating Station

March 7th, 2003 No comments
Pipe Shoes and Stand Assemblies for a Cross-Generating Station

Pipe Shoes and Stand Assemblies for a Cross-Generating Station

Pipe Shoes and Stand Assemblies for a Cross-Generating Station

Pipe Clamps

Piping Technology & Products, Inc. recently designed and manufactured 46 of these support assemblies for a cross-generating power station in South Carolina.  These pipe shoes and assemblies are composed of carbon steel and accommodate pipe with diameters ranging in size from 18”-32”. All of these components are strong enough to support maximum installed loads of 8,000 lbs.

Do you have a requirement for pipe shoes? Get pricing 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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18,500 lb. Load Constants for a Construction Site

February 21st, 2003 No comments
18,500 lb. Load Constants for a Construction Site

18,500 lb. Load Constants for a Construction Site

The constants are made from A36 carbon steel and range in height from 4′-0 to 5′-0 and C-C dimension of 7′-0 to 8′-4.  They have a load capacity of 12,000 lbs. to 18,500 lbs. and a 4-5 travel capacity. Load setting and travel testing was conducted on the constants to ensure they met the customer’s requirements.

Want to learn more about constant springs? View a past webinar today!



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Variable Springs with Permanent Adjustment Travel Stops

February 7th, 2003 No comments
Variable Springs with Permanent Adjustment Travel Stops

Variable Springs with Permanent Adjustment Travel Stops

Piping Technology & Products designed and manufactured these variable springs with permanent adjustment travel stops for a refinery in Texas.

These types of travel stops are used to allow ease of installation, provide a means for field load adjustment within the working range of the spring, and allow the springs to be “locked” easily whenever they are taken out of service for shutdowns or refurbishment of the system.

For this requisition, a total of 23 variable springs with adjustable travel stops were fabricated.  The springs are made from carbon steel and the adjustment rods are made from A-325 high strength bolt material.  The springs ranged in size from PTP-1-60-F to PTP-2-180-F size spring.  The largest springs were set for an operating load of 12,900 lbs. and a hydrotest load of 14,000 lbs. and a maximum travel of ½.  All of the springs were tested in the load cell to insure proper operation. Per the customer’s request, these springs were supplied at an expedited delivery of 3 weeks.

Want to learn more about variable springs? View a past variable spring webinar instantly!



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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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