OPUS

Compressed Air: Galvanized Steel Pipe

Image provided by Victaulic

Compressed air piping systems transport compressed air from air compressors to points of usage....
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Steel pipe that has been dipped into a molten zinc bath is commonly known as "Hot...
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Benefit of Material to Systems Application

Galvanized steel provides the high strength and internal pressure rating of steel as well as a protective Zinc coating for corrosion resistance, making it useful in compressed air systems, primarily in corrosive situations or in humid external environments. While not as commonly used as steel or copper for this application, this pipe is economically priced compared to other non-ferrous materials and requires no special handling, resulting in lower material and labor costs.

System Application and Material Usage

Typical compressed air systems consist of various pipe sizes in corrosive and non-corrosive environments.  Galvanized carbon steel pipe is globally available in a wide range of grades, sizes, wall thicknesses, and lengths and can provide long life in compressed air applications.

Some compressed air systems are in corrosive environments or create moisture and the galvanized coating will provide a protective surface to prevent corrosion and extend the life of the piping system.  The elongation properties of the steel allow it to withstand stresses and strains without breaking under shocks from pressure spikes.  In addition to long spools of pipe used in manufacturing facilities, shorter length and smaller size pre-fabricated nipples and fittings are also available for small systems or near equipment. This variation in configurations enables faster and more economical installations.  

Galvanized pipe may be cut or roll grooved for use with grooved mechanical couplings.  It may also be threaded or flanged.  It should be noted that whenever galvanized is cut, as when cut-grooved or threaded, the zinc coating is removed and the corrosion resistance is lost.

Many health hazards are associated with welding of galvanized pipe, therefore welding is not a common joining method and flanges must be threaded onto galvanized pipe or welded onto the pipe prior to it being galvanized. Further, welding burns off the zinc coating, so the welded area will be susceptible to corrosion.

Manufacturers and Suppliers Participating in OPUS

ANVIL International

Anvil International offers a full line of domestically-produced iron fittings, steel nipples,......
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Embassy Group LTD

Embassy Group LTD is a 100-percent member owned, 3.2 billion dollar corporation consisting of......
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F.W. Webb Company

F.W. Webb Company is a multi-faceted distributor of plumbing and heating, HVAC and controls,......
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Ferguson

Ferguson specializes in providing PVF, Plumbing, HVAC and Related Specialty Products and......
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Galloup Company

J.O. Galloup Company is a premier distributor of commercial and industrial piping products,......
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Hajoca Corporation

Founded in 1858, the Hajoca Corporation is the largest privately owned wholesale distributor of......
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Jomar Valve

Founded in 1966 by former Navy Commander Joseph Martin, Jomar Valve set out to change the way......
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MORSCO

MORSCO is a leading U.S. distributor of commercial and residential plumbing, HVAC, and PVF, with......
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Victaulic

Victaulic is the world's leading manufacturer of mechanical pipe joining products. For over 80......
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Weldbend Corporation

Weldbend Corporation is a manufacturer of carbon steel welding fittings and forged steel......
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Applicable Joining Methods

Flanged

Flanging maybe used for threaded or plane-end pipe. After a flange component is installed on the...
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Grooved

Grooved pipe joints consist of two grooved pipe ends (typically roll grooved) connected with a...
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Mechanical

Used for ductile iron pipe, the mechanical joining method consists of a number of components...
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Threaded

A connection in which an internal threaded fitting and an external threaded piece of pipe or...
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