Introduction to Parker Tube Fittings

Parker Hannifin Corporation is the World’s Leading Tube Fitting Authority. Since 1924, Parker has served the marketplace with dependable fluid power technology. Tube Fittings were among the first products manufactured by the company, and Parker has deep roots and expertise in the design of Tube Fittings. The company manufactures Tube Fittings to a very high standard to conform to all major specification requirements. Parker Tube Fittings are known for their high quality, reliability, consistency, excellent wear, and problem free maintenance. They are manufactured to meet or exceed industrial specification requirements of SAE, ISO, DIN, DOT and JIS standards – so the customer is assured of excellence.

Parker Fittings provide leak free solutions in every style – including hydraulic, pneumatic and instrumentation. They are generally designed to connect a hose assembly to a port or adapter, and are available in a variety of styles including High purity and process fittings, Flare fittings, Compression, bite type, and O-ring fittings, straight thread, pipe, flange and barb fittings, Swivel, Universal and interlocking clamp fittings, Push-o-Lok – push to connect and air hose fitting, Hydraulic hose and reusable fittings.

Many configurations are available – most notably straight Tube Fittings, 45/90 degree elbow fittings, and Tee fittings. Tube Fittings need to be available in a variety of materials to suit different needs. Parker Fittings are available in Brass, Carbon Steel (with Chromium6-Free Plating), Stainless steel, Aluminum, and Thermoplastics.

Innovations from Parker in the field of Tube Fittings include Seal-Lok Lite – which is a compact high-flow Fitting for high flow at low to medium pressure applications such as fluid conveyance in fuel cell systems, and semiconductor manufacturing. This results in shorter thread lengths and larger flow diameter than instrumentation grade and traditional industrial hydraulic fittings, with easy assembly and leak free performance. Triple-Lok 2 is a soft-seal, stainless steel fitting which incorporates a replaceable soft seal in the nose of the flare, which is positioned to achieve leak-free connections without compromising fitting strength. It can withstand up to 20% higher working pressures than stainless steel 37 degree flared fittings, and features Parker’s patented Robust Port Stud for easier assembly and improved reliability. The Robust Port Stud allows for mistake proof installation in the field, and eliminates the potential for backup washer damage that can lead to leaks. It can be used with standard flared tubes and hose ends, and used standard O-rings in most sizes for convenience and savings.

The Triple-Lok Swivel Connection improves performance by design. It features a dual-angle seat that accepts both 37 and 45 degree flare fittings, and repositions the sealing location away from the tip of the male nose, leading to increased pressure ratings in most sizes – a massive 72% higher than a competitive product, and a sealing position that protects the cone and the nose, and improves connection reliability, dual seat acceptance of all sizes of flare fittings, all with no difference in overall swivel nut or fitting body size, and no change in torque or assembly method.

Another innovation for Parker in Tube Fittings is the Trap-Seal, with its consistently positive retention in the groove which essentially eliminates the possibility of pop-out that can occur with standard round-shaped O-rings. This innovative O-ring enhancement does not get pinched and fail prematurely and virtually eliminates costly leakage and/or pre-assembly handling time. It also significantly reduces the need to replace or reinstall the seal. Parker keeps abreast of global changes and standards. Hexavalent Chromium (Cr6) has been restricted, and Parker has produced a new Chromium-6 Free plating process, which has resulted in a new generation of characteristics in their metal Tube Fittings – these include environmental safety, improved corrosion protection, packaging clearly labeled ‘Chromium-6 Free’, and best of all, no changes in assembly method or torque.

Along with all these an more innovations to their Tube Fitting line, Parker also produces custom products for applications as different as snowflakes – Parker can produce new parts in remarkably short times, whether in smaller-run quantities or larger. Parker endeavors to respond to emergency order within hours – not days. It’s easy to see why Parker is the industry leader in the production of Parker Tube Fittings

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Introduction to Swagelok Tube Fittings

Swagelok Tube Fittings are the industry standard. Swagelok has a rich history in innovation, and is recognized worldwide for its superior Tube Fitting line. If you are looking for the best in the design, installation and maintenance of fluid systems, Swagelok will meet and exceed all your Tube Fitting requirements. Swagelok Fittings address the four most costly and critical issues of fluid systems: improper installation, vibration, leakage, thermal shock, providing you with a reliable, gaugeable product with excellent durability, and simplified maintenance. The Swagelok Fittings are available in a range of material and configurations (from 1/16 to 2inches, and 2-50mm) to meet your every need.

Swagelok offers easy to install, live-loaded, two-ferrule design, with a gap inspection gauge that provides instant assurance that a fitting has been sufficiently tightened on installation. The gap inspection gauge gives the installer or inspector immediate feedback that a fitting has been sufficiently tightened. An additional advantage is that no torque is transmitted to tubing during installation. Swagelok Fittings can easily be installed with hand tools, and are also easy to disconnect and retighten, making maintenance a breeze. Swagelok developed and patented the original two-ferrule Tube Fitting innovation, which ensure reliable, leak-tight connections in thousands of diverse applications. Swagelok Tube Fittings are consistently gaugeable – this minimizes installation error, and assures easy maintenance.

In addition, a patented case-hardening process applied to the back of the ferrule ensures that Swagelok Tube Fittings can be used on a range of thick- or thin-walled, hard or soft tubing, which minimizes the effects of vibration, and resists the effects of pressure and thermal cycling. The vibration resistance is provide by the Swagelok Tube Fitting design which features a protected stress riser through the patented back ferrule geometry, which reduces the damage caused by system conditions, and reduces the damaging effects of system dynamics. Provided you use good quality tubing, Swagelok Fittings will not leak, even under rugged conditions. Gas seal is assured by a burnishing or polishing contact by the front ferrule with the fitting body and tube – this creates a concentrated zone of contact, and allows for superior sealing over a wide range of system conditions.

Swagelok Tube Fittings feature controlled-phased sequential pull-up – in simple language, this means that the Fitting components work together in harmony, so that during pull up there is a design sequence of action from front ferrule to back ferrule. The back ferrule features patented recessed and contoured geometry to create the hinging and collecting action that grips the tube. This means that more material from the back ferrule comes into contact with the tube adjacent to the tube grip – which provides direct and axial support to the tube gripping function. This ensures that Swagelok Fittings have a robust tube grip – a key element in the reliable performance of their Fittings.

Swagelok Tube Fittings are available in a variety of types, included Compression Fittings, Flare Fittings, Bite-type Fittings and Mechanical Grip-Type Fittings. They are available in a wide variety of materials including carbon steel, brass, controlled 316 stainless steel, alloy C-276, alloy 400, and alloy 600 for enhanced corrosion resistance. Swagelok Fittings are recognized worldwide, and have received approvals from numerous Independent third party agencies, including the US Navy.

Most importantly, the customer is assured of back up and support when using Swagelok Tube Fittings, and can rely of Swagelok’s advice for every aspect from technical information, product selection, applications decisions, to maintenance and trouble-shooting. Authorized Swagelok sales and service representative have access to data and technical service engineers who can provide necessary insight and support to any project. In addition, Swagelok Fittings come with a limited Lifetime Guarantee. Swagelok Fittings provide customers with excellence in every aspect of Tube Fitting – from purchase, to installation, to maintenance.

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