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Tube Fittings


Tube fittings or pipe fitting is that the occupation of putting in or repairing piping or tubing systems that convey liquid, gas, and sometimes solid materials. This work involves choosing and making ready tube or conduit, connation it along by varied means that, and also the location and repair of leaks.Tube fitting work is completed in many various settings: HVAC, producing, hydraulics, refineries, nuclear-powered super carriers and fast-attack submarines, laptop chip fabrication plants, station construction, and different steam systems. Tube fitters (sometimes referred to as merely “fitters”) area unit portrayed within the USA and North American country by the United Association of Journeymen and Apprentices of the Plumbing and Tube fittings trade of the u. s. and North American country.

tube fittings

Pipefitters work with a range of tube and conduit materials as well as many varieties of steel, copper, iron, aluminum, and plastic. Tube fitting isn’t plumbing; the 2 area unit connected however separate trades. Tube fitters UN agency concentrate on fireplace bar area unit referred to as Sprinkler fitters, another connected, however separate trade.Materials, techniques, and usages vary from country to country as completely different nations have different standards to put in pipe.




Starting from 1/16″ through 2″ (2 millimeter through thirty eight millimeter O.D.tubing) or – 1/16 to a pair of in.; a pair of to fifty millimeter.

Technical Specifications

ASTM F1387-99(2012), ECE R110, MSS SP-99-2010 etc.


metal, brass, cast iron, copper, steel, chrome steel, PVC, ABS, synthetic resin (PE), polypropene (PP), Nylon.

Tube Fittings
Tube Fittings
tube fittings

Pressure Ratings

Up to eleven 000 psi (760 bars)

Materials of Construction

As well as chrome steel and different materials optimized for strength, corrosion resistance, weld ability and malleability

Finish Connections Types

NPT, ISO/BP, SAE/MS, AN, weld ends, port connectors, sanitary flanges, tube adapters


Straights, elbows, tees, crosses, caps, plugs, crackers and ferrules Chromatograph and Column finish

Occupational Hazards of Tube Fittings

Tube fitters’ area unit usually exposed to dangerous or dangerous materials, like amphibole, lead, ammonia, steam, combustible gases, varied resins and solvents as well as benzine, and varied refrigerants. a lot of progress was created within the twentieth century toward eliminating or reducing dangerous materials exposures. several aspects of dangerous materials area unit currently regulated by law in most countries, as well as amphibole usage and removal, and refrigerant choice and handling.Other activity hazards embrace exposure to the weather, work, crushing hazards, lacerations, and different risks traditional to the development trade.

Advantages of Tube Fittings

  • A properly crimped affiliation ought to last as long because the conduit.
  • It takes less time to finish than different ways.
  • It is cleaner in each look and also the materials accustomed build the affiliation.
  • No open flame is employed throughout the affiliation method.


Disadvantages of Tube Fittings

The fittings used area unit more durable to search out and price considerably quite sweat sort fittings.

  • The fittings don’t seem to be re-useable. If a style modification is needed or if a joint is found to be defective or improperly crimped, the already put in fittings should be cut out and discarded. additionally, the cutting needed to get rid of the fitting usually can leave shy conduit to put in the new fitting, therefore couplers and extra conduit can have to be compelled to be put in on either aspect of the replacement fitting. Whereas with a soldered fitting, a defective joint will simply be re-soldered, or heated and turned if a minor modification is needed, or heated and removed while not requiring any of the conduit to be cut away. This additionally permits costlier fittings like valves to be re-used if they’re otherwise in sensible to new condition, one thing unimaginable if the fitting is crimped on.
  • The price of the tooling is incredibly pricey. As of 2016, a basic toolkit needed to sweat solder all the copper tubes of a typical single family residence, as well as fuel and solder, may be purchased for roughly $200. against this, the minimum price of a basic high-powered crimping tool starts at around $1800, and may be as high as $4000 for the higher brands with a whole set of crimping dies.
Categories of Tube Fittings
  • Fittings that reach or terminate tube runs- Couplings, Adapters, Caps and Plugs
  • Fittings that modification a pipe’s direction- Elbows (ells)
  • Fittings that Connect 2 or a lot of tubes- Reducers, Bushings, Flex couplings, Fitting reducers, Adapters.

There is without stopping to applications of tube fittings ciao there’s without stopping to the applications of tubes. whereas the list of piping applications continues to expand, its strength, flexibility, excellent flow rates and high chemical resistance area unit qualities that area unit unambiguously fitted to the movement or transfer of liquids, steam, solids and air from one purpose to a different. With piping, tube fittings have several different uses like as follows:

  • The transfer of very dangerous materials like chemical and waste.
  • Protection of sensitive instrumentation from high pressures.
  • Protection from corrosion and different extreme climatic conditions.
  • Resistance to ménage and industrial chemicals.
Tube Fittings Area Unit Utilized in Varied Industries Like
  • Chemical / organic compound
  • Municipal
  • Food, Beverage, and Dairy
  • Oil and Gas
  • Power
  • method Instrumentation
  • Pulp and Paper
  • Semiconductor
  • Marine & dredging
  • Sanitation
  • Irrigation
  • Residential
  • Road & road construction
  • Ventilation etc.
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