A Glossary of Pipe Support Manufacturing Terms

Many terms in the pipe support industry often get mixed up, so we’re here to clarify things for you!

A Glossary of Pipe Support Manufacturing Terms

 

Adjustable:
Refers to having the ability to adjust, usually through threading mechanisms.

Anchor:
A pipe support used to restrict pipe movement at a specific location.

Beam Clamp:
A type of clamp, either forged or fabricated, used to attach rod hangers to beams by clamping onto the load flange.

Base:
The bottom part of a pipe support that holds up the piping system.

Base Supports:
Supports used on sections of pipe as a stand. They can be trunnions, stanchions, or a pipe branch added to a straight pipe, elbow, or transition. These are ideal when minimal to no movement is expected.

Bracket:
A cantilevered member, with or without a knee brace, designed to withstand both gravity loads and horizontal forces.

Bolted:
The piping support assembly held together using bolts.

Clevis Hanger:
A pipe attachment offering vertical adjustment, consisting of a clevis-type top bolted to a formed steel bottom strap.

Composite:
Typically made from a compound plastic/polymer material (known as FRP), composites provide a cost-effective method to protect uninsulated piping systems from common issues like metal-to-metal contact, friction damage, and galvanic corrosion.

Cope:
A relief cut made in a component so it can fit snugly against another component or existing structure/pipe.

Cryogenic:
A state where materials are at very low temperatures (below -150°C).

Cryogenic Pipe Support:
(Also called a cold shoe) A type of assembly used to support a piping system without dissipating the cryogenic temperatures at a certain point.

Component:
Any of a range of devices used to create a pipe support assembly.

Constant Support Hanger:
A mechanical and spring coil device that provides relatively constant support while allowing vertical pipe movement.

Dummy Leg:
A dummy leg is a piece of pipe acting as a support branch between your pipe and a nearby support point.

Epoxy:
A two-part chemical compound that bonds most substrates and is resistant to chemicals, shocks, and extreme temperatures.

Eye Rod:
A hanger rod with an end shaped in a circular or pear form, allowing attachment to other components via a bolt or pin. The eye can be forged, welded, or non-welded.

Eye Socket:
A device enabling the attachment of a threaded hanger rod to the bolt of another component.

Fabrication:
A process involving cutting material to size and molding it into various required shapes.

Flat Bar:
A flat, rectangular section of metal with square edges available in various sizes.

Flat Plate:
Composite plates used to protect flat surfaces from friction, corrosion, and wear. (Not to be confused with Flat Bar)

Forged Clevis:
A device enabling the attachment of a threaded hanger rod to a bolted or pinned connection.

FRP:
Fiber-Reinforced Polymer (or Fiber-Reinforced Plastic), a composite material made of a plastic resin or polymer matrix reinforced with fibers. The fibers are usually glass, carbon, or aramid, though other fibers such as paper or wood have occasionally been used.

Guide:
A device that allows pipe movement in a predetermined direction while preventing movement in other directions.

Hanger:
A type of pipe support consisting of a clamp that holds the piping system from above rather than from the base. This type of support is available with or without insulation.

Hanger Rod:
A round steel bar, usually threaded, used to connect other components and form a pipe hanger assembly.

Heavy Bracket:
A bracket used for supporting heavy loads.

Hold Down Straps:
A hybrid of a clamp and a U-bolt, these restraints offer a perfect medium for securing pipes. They are designed to protect the coating of uninsulated carbon steel pipes (when lined) while keeping the pipe securely in place.

Hot Dip Galvanizing:
A process of protecting metallic surfaces from corrosion or rust by dipping materials in boiling chemicals for a certain period.

Hot Shoe:
A type of assembly used to support a piping system without dissipating elevated temperatures at a certain point.

Line Stop:
Restricting movement in two directions, these pipe guides protect pipes from bending and buckling.

Load Scale:
A scale attached to a variable spring hanger to indicate the supported load.

Load Variation:
A term associated with variable spring hangers describing the difference in supporting effect between the hot and cold elevations of the support point.

Mark Number:
A unique number used to identify pipe hangers.

Offset:
A relative displacement between the structural attachment and pipe attachment, which can be incorporated into the design of the pipe hanger assembly to accommodate piping movement.

Pipe Attachment:
Any device used to connect the pipe to the rest of the pipe hanger assembly.

Pipe Clamp:
A bolted pipe attachment that clamps around the pipe to connect it to the rest of the pipe hanger assembly.

Pipe Clip:
A pipe attachment used to hold the pipe directly to a structure, also referred to as a strap or pipe strap.

Pipe Hanger:
A device suspended from a structure and used to carry the piping load in tension.

Pipe Hanger Assembly:
A general term describing a series of assembled components making up a pipe hanger, pipe support, restraint, anchor, guide, etc.

Pipe Support:
An assembly used to hold a piping system at a desired location.

Pipe Roller:
A roller device used to support horizontal piping and allow for axial movement.

Pipe Saddle Supports:
A stanchion utilizing a curved section for cradling the pipe.

Pipe Shield:
Pipe shields are commonly used to protect foam, fiberglass, or high-density insulation when used with pipe hangers and minimize the threat of jacket penetration at clevis hanger spots on insulated pipe.

Pipe Shoe:
A device that carries piping from beneath and is used to carry the piping weight in compression; these can be fabricated from metal or composites.

Repad:
A Repad (Reinforcing Pad) is used to reinforce or strengthen a high-stress point on your pipe. The product resembles a doughnut or large washer. (Not to be confused with a "saddle", "pipe shield" or metallic wear pad)

Restraint:
A device that restricts movement, typically of a pipe.

Rigid Hanger:
A pipe hanger that doesn’t allow vertical movement.

Rigid Support:
A pipe support that doesn’t allow vertical movement.

Riser:
Any vertical portion of a piping system.

Riser Clamp:
A pipe clamp for the support of vertical piping with separate load bolts to transfer the piping load to the rest of the pipe hanger assembly.

Saddle:
A pipe saddle is any pipe support that cradles a pipe and transfers the pipe’s load weight onto a supporting base. Like a saddle on a horse supports a rider, pipe saddles support a pipe’s weight.

Slide Plates:
Bearing surfaces engineered to reduce the friction and wear of various structural components at expansion and contraction joints. They can be used in multiple applications such as in the support of heavy piping, equipment, bridges, and other structural members.

Stanchion:
A pipe support designed to stop movement in any direction and eliminate rotation in the system.

Thermoplastic Rods: (typically referred to by a particular brand name, or as "half rounds")
These Acetal rods effectively prevent pipe corrosion by inhibiting a corrosion cell from forming, thus prolonging the life of your piping system.

Threaded Rod:
A rod threaded its full length.

Three Bolt Pipe Clamp:
A pipe clamp usually used for horizontal insulated piping, which uses clamping bolts to attach the clamp to the pipe and a separate load bolt to transfer the piping weight to the rest of the pipe hanger assembly from a point outside the insulation.

Trunnion:
A pipe support that reinforces vertical pipe sections and stabilizes piping systems by providing support from two opposing sides.

Turnbuckle:
A device with one left-hand female threaded end and one right-hand female threaded end, used to join two threaded rods and provide linear adjustment.

U-Bolt:
A U-shaped rod with threaded ends that fits around a pipe as well as being attached to a supporting member.

Variability:
The Load Variation of a Variable Spring Hanger divided by the Hot Load expressed as a percentage.

Variable Spring Hanger:
A spring coil device that provides a varying supporting effect while allowing vertical pipe movement.

Wear Pad (composite):
Composite wear pads are designed to stop metal-to-metal piping damage by isolating pipes. APP’s proprietary ProTek Wear Pads are industry-leading FRP composite wear pads that are easy to install, can withstand temperatures from -320°F to +400°F, and are used in a wide variety of industries to keep pipes from scraping against I-beams or concrete supports.

Welded Beam Attachment:
A U-shaped flat bar device, normally welded to a steel beam used to connect the rest of a pipe hanger assembly.

Welded Pipe Attachment:
A pipe attachment requiring welding to the pipe to connect it to the rest of the pipe hanger assembly.

Weldless Eye Nut:
A forged steel device that provides for the attachment of a threaded hanger rod to a bolt or pin connection.

 

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