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Category Articles
What is a trapeze hanger?
Added on Tue, Nov 2, 2010
A trapeze hanger is a support assembly consisting of parallel vertical rods which are suspended from a structure and connected at their lower ends by a horizontal member from which the pipe is supported. It is used for the suspension of pipe from... Read More
How do I install a turnbuckle?
Added on Tue, Nov 2, 2010
When installing turnbuckles, first ensure that you have a left-handed thread and a right-handed thread component. Begin by threading one end of the turnbuckle onto the threaded portion of the rod until you reach full thread engagement. Next,... Read More
When do you use the u-bolt to guide the pipe?
Added on Tue, Nov 2, 2010
U-bolts can be utilized as pipe guides when the horizontal forces are relatively small (usually 10% or less) compared with the anticipated vertical load. U-Bolt Pipe Support Assembly Read More
What is an eye rod?
Added on Tue, Nov 2, 2010
An eye rod is a hanger rod where the lower section consists of either a formed portion (to form an "eye") of the rod or a welded pad (to form an "eye") with a hole to attach to bolts or pins. 240 PT&P Figure 110 Welded Eye Rods Read More
What is a welding lug?
Added on Tue, Nov 2, 2010
A welding lug is a pipe support component consisting of a single plate of varying thickness, depending upon the load, which is welded to either a supporting structure or a supported pipe and used to join other support components together using... Read More
What does long tangent mean for u-bolts?
Added on Tue, Nov 2, 2010
Long tangent refers to the length of the straight leg portion of the u-bolt which specifies the height of the u-bolt. Long Tangent U-Bolts Read More
What is a Teflon® bearing pad?
Added on Wed, Dec 1, 2010
A Teflon® bearing pad is a slide plate made up of PTFE, 25% glass filled, material that provides a low coefficient of friction for most combinations of temperature and load. For most applications, PTFE, 25% Glass Filled, is adequate when the... Read More
What can be attached to structural site components to support the vertical load of the pipe?
Added on Fri, Feb 11, 2011
You can use a variety of components. The most common would be a structural welding lug or a welded beam attachment. Where welding is not permitted you can use either beam clamps or bolted plate connections such as the clevis plate Fig. 73 or... Read More
When do you use a linked eye rod?
Added on Wed, Feb 23, 2011
Linked eye rods are primarily used in rod hanger assemblies where lateral or axial pipe movement must be accommodated. Linked Eye Rod Read More
What is a clevis plate?
Added on Fri, Feb 11, 2011
Our concrete clevis plate is a method for attaching a welded beam attachment to a concrete base in place of a structural steel base. Read More
What is a roller hanger?
Added on Tue, Nov 2, 2010
A roller hanger is a pipe attachment which utilizes a pipe roller for axial movement and is used in a suspension hanger. Galvanized Roller Hanger Read More
How do I select a pipe hanger?
Added on Tue, Nov 2, 2010
The design parameters that must be considered when selecting a pipe hanger would include operating temperature, operating load, movement, pipe material, available space, and allowable initial load requirements. Once these are known, then you can... Read More
How do I specify u-bolts for pipes?
Added on Tue, Nov 2, 2010
In order to specify a u-bolt for pipes, you must provide the diameter of the pipe, the material, the tangent length, and either the load or thickness of the u-bolt rod. Drawing of a Fig. 100 U-Bolt Read More
Why is a turnbuckle used with pipe supports?
Added on Thu, Feb 17, 2011
A turnbuckle provides two functions in a piping system. The first function would be to provide a minimum amount of adjustment for any field inconsistencies. The second function would be to provide the minimum amount of resistance when... Read More
What determines the size of a wear pad used on a pipe?
Added on Fri, Feb 11, 2011
Two factors determine the size of the wear pad. One is the wall thickness of the supported pipe and the second is the load being supported. In general, thinner wall piping requires a larger contact surface area. Larger load capacities would also... Read More
How do you bond PTFE to metal?
Added on Wed, Dec 1, 2010
The most common method of attaching a slide bearing plate to supporting metal structures is through welding. When this approach is used a "lip" must be built since the welding's extreme temperature may break the bond between the low... Read More
Why are roller hangers used on pipes?
Added on Wed, Dec 1, 2010
Roller hangers are used for the suspension of pipe from a single rod where horizontal movement may occur because of expansion or contraction. Read More
What is a clevis hanger?
Added on Tue, Nov 2, 2010
A clevis hanger is a pipe attachment providing vertical adjustment, consisting of a clevis type top bolted to a formed steel bottom strap. Clevis Hanger with a Rubber Liner Read More
How do I install a clevis?
Added on Tue, Nov 2, 2010
When installing clevises, first you should disengage the pin connection of the clevis. Then align the clevis pin holes with the existing component. Place the pin through the holes of the clevis an component and place the lock in the pin. Clevis... Read More
How strong are hanger rods?
Added on Tue, Nov 2, 2010
The strength of the hanger rod is dependent upon its diameter. The smallest standard rod diameter for Piping Technology is .5 inch with a load capacity of 1,350 lb. and the largest with a 3 inch diameter and a load capacity of 60,100 lb. Hanger... Read More
How do I anchor piping at trapeze type pipe hangers?
Added on Wed, Mar 23, 2011
The best way to anchor a trapeze hanger assembly would be to incorporate one rigid strut or a combination of struts into the overall pipe hanger design to prevent movement in both horizontal planes. Size 4 Rigid Sway Struts Read More
What is a steel washer plate?
Added on Wed, Dec 1, 2010
Steel washer plates are components used on top of channels or angles to support pipe with rods or U-bolts. Read More
What is PTFE?
Added on Wed, Dec 1, 2010
PTFE is also know as polytetrafluoroethylene. It is used as a component of slide plates and functions as a low-coefficient of friction between a stationary support element and the moving pipe support component. PTFE Slide Plates Read More
What are hanger rods?
Added on Tue, Nov 2, 2010
Hanger rods are externally threaded components which are used to join internally threaded components of a pipe support assembly. Rod and Clevis Assembly Read More
What are the layers used in a PTFE plate for pipe supports?
Added on Tue, Feb 1, 2011
A PTFE slide plate is simply a layer of PTFE, 25% glass filled material bonded to a carbon steel backing plate. PTFE Slide Plate Read More
Where are bearing plates typically used?
Added on Wed, Dec 1, 2010
Bearing plates are used on a stationary support element and a moving pipe support component to provide a low-coefficient of friction between the two. Stainless Steel Slide Plates Welded on Variable Springs Read More
What is a bearing plate?
Added on Wed, Dec 1, 2010
A bearing plate is also referred to as a slide plate. It is a component that can be fabricated from a variety of materials including graphite, PTFE, 25% glass filled, stainless steel, and bronzphite. The purpose of slide plates is to produce a low... Read More
When do I use roller supports in a piping system?
Added on Wed, Mar 23, 2011
Rollers are generally utilized when axial movement at the support location would generate swing angles in excess of 4 degrees on hanger type supports or when movement is greater than approximately an inch on base type supports. Roller Stands... Read More
When are shear lugs required on pipe supports?
Added on Wed, Jun 22, 2011
Shear lugs are primarily required whenever a clamping support is being loaded in the axial direction of the pipe. It should be noted that we are not relying upon the clamping force of the support to withstand the axial load, but we are relying on the... Read More
How do I attach a flat plate to a pipe?
Added on Wed, Mar 23, 2011
There are a variety of ways to attach a flat plate, such as a slide plate, to a pipe including welding or bonding. Read More
How do I weld an anchor rod to an embed plate?
Added on Wed, Feb 23, 2011
The most common method of welding an anchor rod to an embed plate involves using pre-sized studs which have a flat surface of sufficient area that once welded in place would provide an indication of the load capacity. Two 240" x 12" x 1... Read More
What is a clevis and yoke?
Added on Fri, Feb 11, 2011
A clevis and yoke refers to two components used when temporarily rigging pipes into position which consists of an adjustable strap which fits around the pipe. The clevis then attaches the temporary strap to our lifting mechanism. Read More
What bonds PTFE?
Added on Fri, Feb 11, 2011
Here at Piping Technology, we use a 2-part epoxy glue to chemically bond the PTFE to its respective backing plate. PTFE Slide Plate Read More
What are lug plates?
Added on Wed, Jun 22, 2011
A lug plate is a component that is welded to existing structural steel members and allows another pipe support component to be pinned at that location. A PT&P Engineer Checking the Alignment of the Holes on the Lug Plates Read More
Why do we have to hot dip galvanize a u-bolt support?
Added on Thu, Feb 17, 2011
In general, hot dipped galvanizing a u-bolt provides both a durable and economical finish, but is not always necessary. Structural Steel with Galvanized U-bolts Read More
How can I get something to roll on a pipe device?
Added on Wed, Feb 23, 2011
The most common method to allow pipes to roll across stationary pipe support components would be to include a roller or series of rollers as part of the overall support assembly. Various Types of Pipe Rollers Read More
What is a threaded device to hang pipes?
Added on Wed, Jun 22, 2011
In general, hanger supports, be they rigid rod hangers, variable spring hangers or constant spring hangers, all use threaded connections between our existing structural steel component and our pipe attachment point. These threaded components are used... Read More
How do you join a steel washer to a steel rod?
Added on Thu, Jun 16, 2011
In order to join a steel washer to a steel rod, you must utilize a nut in combination with a steel washer and threaded rod component to distribute the load at the nut surface to the washer surface. Steel Rods with Pipe Support Hardware Attached... Read More
How do you ensure safety on a rod type turnbuckle?
Added on Thu, Jun 16, 2011
In order to ensure full load carrying capacity (safety) of a specific size turnbuckle, one must provide full thread engagement at both ends of the turnbuckle. In other words you should see part of the left hand rod and the right hand rod protruding... Read More
Why does maximum temperature for a Figure 89 have a temperature limited to 650˚F?
Added on Thu, Nov 3, 2011
At 650˚F, the clamp material is approaching its maximum temperature rating so we would recommend an alloy material above that temperature. Clevis Hanger and Beam Clamp Assembly Read More
Are u-bolts allowed for insulated steam lines?
Added on Fri, Nov 25, 2011
Yes, u-bolts can be used on insulated steam lines. U-Bolt Assembly Read More
Does an adjustable clevis hanger cause a resistance to lateral or axial movement?
Added on Thu, Oct 27, 2011
The Figure 83 clevis hangers support vertical pipe, so they do not resist lateral or axial movement, but support the vertical piping and resist vertical movement of the pipe. Clevis Hanger Read More
What makes an adjustable clevis hanger adjustable?
Added on Thu, Oct 27, 2011
The adjustment for a clevis hanger is obtained by the threaded rod connection and the upper section of the clevis hanger. The space between the pipe’s outer surface and the top section of the clevis hanger can be utilized to adjust the overall... Read More
From a corrosion stand point, are your rollers good for offshore applications?
Added on Thu, Nov 3, 2011
For offshore we have to paint the rollers or coat them in neoprene to withstand the harsh environment. Painted Pipe Rollers Read More
How does the roller support fit with insulated pipe, as the insulation may be squeezed?
Added on Thu, Nov 3, 2011
The roller support is designed to be used with rigid insulation and must be sized according to the outer diameter of the insulation. Eight Polyurethane Pipe Rollers for a Gas Plant Read More
Do we add a safety margin to the load of pipe supports?
Added on Thu, Nov 10, 2011
All pipe support components are fabricated with a minimum factor of safety of 2.5. Read More |
