Tubing vs Pipe

Standard fluid line systems, whether for simple household use or for the more exacting requirements of industry, were for many years constructed from threaded pipe of assorted materials and were assembled with various standard pipe fitting shapes, unions and nipples. Such systems under high pressures were plagued with leakage problems besides being cumbersome, inefficient and costly to assemble and maintain. Therefore, the use of pipe in these systems has largely been replaced by tubing because of the many advantages it offers.

Old Method - Each connection is threaded – requires numerous fittings – system not flexible or easy to install and service connections not smooth inside – pockets obstruct flow.


Modern Method - Bendable tubing needs fewer fittings - no threading required - system light and compact - easy to install and service - no internal pockets or obstructions to free flow. (Use a Parker Tube Bender)

Major Advantages of Tubing vs. Pipe

1. Bending Quality - Tubing has strong but relatively thin walls: is easy to bend. Tube fabrication is simple. (Parker Tube Bender)
2. Greater Strength - Tubing is stronger. No weakened sections from reduction of wall thickness by threading.
3. Less Turbulence - Smooth bends result in streamlined flow passage and less pressure drop.
4. Econmy of Space and Weight - With its better bending qualities and a smaller outside diameter, tubing saves space and permits working in close quarters. Tube fittings are smaller and also weigh less.
5. Flexibility - Tubing is less rigid, has less tendency to transmit vibration from one connection to another.
6. Fewer Fittings - Tubing bends substitute for elbows. Fewer fittings mean fewer joints, fewer leak paths.
7. Tighter Joints - Quality tube fittings, correctly assembled, give better assurance of leak-free systems.
8. Better Appearance - Tubing permits smoother contours with fewer fittings for a professianal look to tubing systems.
9. Cleaner Fabrication - No sealing compounds on tube fitting connections. Again no threading: minimum chance of scale, metal chips, foreign particles in system.
10. Easier Assembly and Disassembly - Every tube fittings connection serves as a union. Tube fitting connections can be reassembled repeatedly with easy wrench action.
11. Less Maintance - Advantages of tubing and tube fittings add up to dependable, trouble-free installations.

If you would like to receive more information about Parker Instrumentation Tube Fittings or Tubing please contact Forberg Scientific customer service.
Toll Free: 855-248-5330
Email: mechancialsales@forberg.com

Parker Tube Fittings Installation Instructions

Forberg Scientific Inc. is a Parker Instrumentation Solution Center. For more than 40 years Forberg has been a leader in instrumentation and the industrial distribution field. Forberg Scientific is a distributor / manufacturer's representative organization with a passion for customer service and innovative problem solving.

Forberg Scientific Inc. offers Parker A-lok & Parker CPI Instrumentation Tube Fittings that are designed as leak-free connections for process, power and instrumentation applications. These world renowned fittings are manufactured to the highest quality standards and are available in a broad range of sizes, materials and configurations.

You can find Parker Tube Fittings and a large variety of other product lines we offer at www.forberg.com .
email: mechanicalsales@forberg.com

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Advantages of Parker CPI Single Ferrule Instrumentation Tube Fittings vs Swagelok type

Advantages of Parker CPI single ferrule instrumentation tube fittings over dual ferrule (Swagelok - type) tube fittings.

Safety - By reducing chances for error, chances for leaks are reduced.

• There are 13 incorrect configurations of a two-ferrule instrument tube fitting like (Swagelok).




• There are only 2 incorrect configurations of a Parker CPI single-ferrule tube fitting.




• Parker CPI single-ferrule fittings move a key sealing point in front of the tube grip point. This greatly reduces potential problems from vibration and thermo-cycling versus the two-ferrule instrument tube fitting design.

Simplicity - By design, Parker CPI single ferrule tube fittings are easier to work with than dual-ferrule instrumentation tube fittings like (Swagelok).

• Less torque is required to install single-ferrule Parker CPI fittings than two-ferrule instrument tube fittings.




• With single-ferrule Parker CPI there are fewer components to stock, re-order, and carry around the plant.

Service Life - The Parker CPI moly-impregnated stainless steel nut provides more remakes and less thread galling versus silver coated threads used in two-ferrule designs like (Swagelok).

Interchangeability - Parker CPI single-ferrules are fully interchangeable with Swagelok dual-ferrule systems and can be used in either Parker or Swagelok fitting bodies.

Check out the Parker CPI Advantage .pdf

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