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Constants — The Pipe Supports Blog

88 Constant Supports for a Hydrogen Reformer Plant

January 4th, 2006 No comments
 88 Constant Supports for a Hydrogen Reformer Plant

88 Constant Supports for a Hydrogen Reformer Plant

These Figure PTP100-A size 40 and 51 constant supports, made of A36 carbon steel, are used to support pipeline systems. Each is 24″ long, 10 1/2″ wide, and 51 1/2″ high. These constants are capable of supporting loads ranging from 1,165 lb. to 2,260 lb. with a travel range of 13″ to 14 1/2″. PT&P specifically designed and fabricated each constant for specific dimensions provided by the customer. Standard load and travel testing was completed for quality assurance.

Do you require constants in your plant or refinery? Let us price them for you today!
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Constants for an Energy Plant in Iowa

July 29th, 2005 No comments
Constants for an Energy Plant in Iowa

Constants for an Energy Plant in Iowa

This (PTP-13) size horizontal E-type constant is for an energy plant in Iowa. It measures 14″ 9″ 24″ with a total travel range of 5″ and an operating load of 388 lbs. It is fabricated out of A36 carbon steel, and weighs 95 lbs. Standard load and travel testing were performed on the constant prior to shipping to ensure quality.

Do you require constants for your current job? Get pricing today!


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Emergency Request for Types B & E Stainless Steel Constants

May 30th, 2003 No comments
Emergency Request for Types B & E Stainless Steel Constants

Emergency Request for Types B & E Stainless Steel Constants

Within a two-week span, PT&P designed and fabricated eight Stainless Steel, grade-304, types B & E Constants for a marine plant. These constants have a travel of 1 1/2 – 5″ and are specified to carry 50 – 1540 lbs load. Stainless steel was requested due to the corrosive nature of the environment. PT&P also manufactured nine Carbon Steel types B & E Constants for this project.

Do you require consants in your current or future project? Let us price them for you today!


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Vertical F-Type Constants for Power Plant

July 19th, 2002 No comments
Vertical F-Type Constants for Power Plant

Vertical F-Type Constants for Power Plant

Piping Technology & Products custom designed and manufactured vertical F-type constants for a power plant in Connecticut.

The 100 type F is a vertical constant designed to support piping from below with minimum space usage. The dimensions of the constant are 26-5/8″ high, 10″ wide, and 17-9/16″ long with an operating load of 280 lbs.

This particular F constant, was unusual in that it was furnished with a vertical spring that attaches below the frame of the constant. In addition to a downward travel of 3″, the flange table shifts forward at 1-3/8″ to minimize axial movement.

A galvanized finish was applied to the constant to prevent corrosion. The constants can be bolted on or welded to the support or steel underneath.

Need constants for an upcoming project? Ask for pricing today!

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400 Lightweight, Vertical Constant Load Hangers

February 15th, 2002 No comments
400 Lightweight, Vertical Constant Load Hangers

400 Lightweight, Vertical Constant Load Hangers

400 Lightweight, Vertical Constant Load Hangers

Constants in the Field

Piping Technology & Products, Inc. specially designed and fabricated four hundred 100-C, vertical constant load hangers for a plastics plant in Texas. The constants will be used to support a furnace standing three levels high.

In the plant, thirteen single beams confined to limited space will each hang thirty constants, therefore PT&P engineers were required to design the constants to weigh less than 150 pounds. The 136-pound constants with travels of 10 inches upward and a supporting load of 950 pounds, are 33 7/8″ in height and 8 7/8″ in width. They are also supplied with shop prime, painted finish to safeguard against the extremely hot temperatures of the furnace area. In order to insure quality and proper operations of the constants, a prototype was built and tested to MSS standards.

Need some vertical constant load hangers? Let us price one for you today!

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U-Type and F-Type Constant Spring Supports

October 30th, 2001 No comments
U-Type and F-Type Constant Spring Supports

U-Type and F-Type Constant Spring Supports

U-Type and F-Type Constant Spring Supports

F-Type Constants

Piping Technology & Products, Inc. designed, manufactured and delivered a total of 8 constants to a power plant in Mexico. The designs consisted of 4 Horizontal U-Types Upthrust (Figure 1) and 4 Vertical F-Types (Figure 2) that are to support 24-inch diameter pipes. Each consisted of different sizes. The constants are designed for loads of 2,839 lbs. to 8,963 lbs., for Total Travels ranging from 7 to 3 inches. Constants were painted CZ-11 per customer request.

Learn more about constant springs by visiting our webinar archives!



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16,000 Lb. 33 1/2" Travel Horizontal Constant Load Hangers

February 10th, 2000 No comments
16,000 Lb. 33 1/2" Travel Horizontal Constant Load Hangers

16,000 Lb. 33 1/2" Travel Horizontal Constant Load Hangers

In January 2000, Piping Technology & Products, Inc., a manufacturer of high quality engineered products, designed and built two 33 1/2 inches travel and two 25 inches travel constant load spring hangers. These constant load spring hangers will be in service at a geothermal production well in Hawaii, where they will be used to support a pipe that carries hot water discharged from a geothermal production well to a separator.

16,000 Lb. 33 1/2" Travel Horizontal Constant Load Hangers

16,000 Lb. 33 1/2" Travel Horizontal Constant Load Hangers

The well will produce 2.8 Million gallons of water per hour at a discharge temperature of 680° F, and a pressure of 2800 psi. These custom designed constant load spring hangers provide extraordinarily large travel distance. The 33 1/2″ travel and the 25″ travel constant load spring hangers are designed to provide a constant 16,000 lbs. and 6,000 lbs support for a pipe moving a vertical distance of 33 1/2″ and 25″ respectively.

Want to learn more about constant hangers? Visit our webinar archives today!


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Specially Designed Vertical Constants

June 1st, 1993 No comments
Specially Designed Vertical Constants

Specially Designed Vertical Constants

The vertical constant is used when piping stress is critical and pipe is subject to vertical movement in excess of ½ inch due to thermal expansion, and also at locations here it is necessary to avid any transfer of stress from support or onto critical terminals or connecting equipment. These constants are manufactured by Piping Technology & Products, Inc.

Do you have a requirement for custom constants? Let us serve your needs today!

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