The Pipe Support Blog

40 Clamp Attachments for a Petrochemical Plant

The pipe clamp attachments shown are used for supporting vertical pipe sections to vessel clip anchors. These braces are designed for a maximum horizontal moment of 15,000 ft-lb at the vessel clip. All the clamps provided were made of carbon steel with a hot-dip-galvanized finish. The pipe hanger assembly lengths were fabricated per specifications provided by the client.

The pipe clamp components were designed and fabricated for non-standard pipe diameters (i.e. 13-3/4", 16-1/2") so that they could be used on insulated or finned pipelines.

Are you in need of pipe clamp attachments? Request a quote today and receive a response within 48 hours!

C-Type Constants

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

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!

PTFE, 25% Glass Filled, Slide Plate Material Cut and Bonded to a Polyslinger

Piping Technology & Products, Inc. cut and bonded a PTFE, 25% glass filled, ring (see photo above) to a polyslinger which will be utilized at a Chemical plant in Texas.

The polyslinger was a total weight of 33 lbs and its lip measured at 26" O.D. The PT&P worker cut the PTFE, 25% glass filled, at 24" I.D. with a thickness of 3/32" and then bonded it to the lip of the polyslinger with an epoxy resin adhesive. PTFE, 25% glass filled, is used as padding, intended for reducing metal-to-metal friction.

Are polyslingers a necessity for you? Get pricing on one today!

PT&P Utilizes 3D-Modeling Technology to Design Pipe Supports for a 750MW Power Plant

(at left) 3-D Design
Piping Technology & Products, Inc. recently designed and fabricated 9 pipe supports with loads up to 75,000 lbs. for a 750MW power plant in Alabama. After extensive engineering hours and structure analysis, PT&P’s engineering department produced a detailed design and 3-D model for the supports that would allow them to run electronic interface checks. The supports are to support the cooling towers’ circulatory water system at the power plant. Six of the 9 supports were designed for a 60” line and 50,000 lb. load, and the remaining 3 were designed for a 78” line and 75,000 lbs. of load.

Furnace Springs Versus Standard Springs The major differences between standard springs and furnace springs are their construction and intended use. Furnace springs operate in much the same way as other variable spring supports. They are designed to support the pipe and tubes that are subject to vertical thermal movement. The design changes come about because, furnace springs are exposed to extreme temperatures.

Chrome-Moly Pipe Shoe for an 18" Pipe

Piping Technology & Products, Inc., designed and fabricated a Figure 700 chrome-moly shoe for an 18" pipe used to support high temperature lines at a power plant in Mexicali, Mexico.

The shoe's length is 12" and the pipe centerline distance was maintained at 17 3/8" from the bottom of the shoe. The clamp was designed at 1065°F and the load was designed for 6965 pounds. The base and clamp plates are made of A387 GR.22 plate material and the u-bolt parts are made of A193 GR.B7 bar stock.

Want to learn more about chrome-moly shoes and other products from Piping Technology and Products? Visit our webinar archives today!

 

400 Lightweight, Vertical Constant Load Hangers

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 (see image at left), 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!

How to Size a Spring Hanger

Piping systems are used to transport gases, liquids and suspended solids between units of a plant. The temperatures of the contents and the pipe when the plant is in operation are often quite different from the ambient temperature of the surroundings. The heat transferred during changes in temperature causes metal pipe to expand and contract. Piping designers must provide for movement due to temperature changes and forces caused by pumps, gravity and other elements of the piping system.Read PT&P's "How to Size a Spring Hanger" Technical Bulletin for more information.

PT&P Specially Designs and Fabricates Constants for a Radiant-Tube Support System
These constants are an essential component of the radiant-tube support system for a reforming furnace. Piping Technology custom designed these units to fit in the limited space available inside the furnace. The bolting patterns for the constants needed to be flexible enough that they could be attached to the supporting structure with any of the support system designs being considered.

Slide Plates: The "Sandwich" Concept
Piping Technology & Products, Inc. uses the "sandwich" concept when applying slide plates to our customers ' systems. Figure 1 shows a "sandwich" composed of two identical slide plates, one on top and another on the bottom. Each slide plate (which is like the bun of the "sandwich") and a low coefficient of friction material which is bonded to the metal backing plate.

Figure 1 (at left)
In a typical application a slide bearing plate is welded to a structural steel member which is strong enough to provide the required support, but whose coefficient of friction is too high.

Figure 2 (at right) shows an application in which a slide bearing plate is welded on top of one steel beam supporting the other beam. When the top beam moves (due to thermal expansion, for example) it slides across the surface of the bearing plate without contacting the supporting another beam. To return to our "sandwich" metaphor, the top half of the "sandwich" is bonded to the sliding beam, and to the bottom half to the supporting beam.

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

Take advantage of our currently open shop space!
PT&P and its wholly owned subsidiaries US Bellows and Sweco Fab are manufacturers of a variety of high quality engineered products. We're open, 24/7, to meet all your quick-turn/ emergency needs! PT&P and its wholly owned subsidiaries US Bellows and Sweco Fab are manufacturers of a variety of high quality engineered products.

PT&P has a system of stock inventory that allows us to quickly assemble and ship products such as:

*Engineered Spring Supports
*Expansion Joints
*Support Assembly Components
*Fabricated Pipe Shoes and Anchors
*Flow Products
*Slide Plates and more!

Bonding Strength Testing for Low Temperature Application Adhesive

In the picture above, a test of the bonding strength of an adhesive designed for low temperature applications is being conducted. Polyurethane strips have been bonded to metal strips which are pulled apart in a load cell which measures the force applied.

Polyurethane is often specified for components of insulated pipe shoes and supports for cold temperature applications. Polyurethane provides both insulation and load carrying capacity for pipes when it is bonded to a metal pipe shoe or support. Piping Technology & Products, Inc. fabricates all types of insulated pipe supports. The type of insulation specified depends on the temperature profile the pipe will experience and the loads and movement at the point of application.

PT&P provides testing services and pipe support maintenance in the field. Let us help you today!