Swivel Joint 2004 Series, Carbon Steel and Low Profile Design

EWFM’s Swivel joint 2004 series is the most basic low-profile swivel of the standard range. With one row of ball bearings this swivel truly is compact. It is a great solution for when you are really limited with vertical space. Having only one set of ball bearings, the swivel joint 2004 series will not tolerate significant load, therefore all arms or other forms of articulated pipework must be supported. Like the Swivel Joint 3996 Series this swivel joint is only available in Carbon Steel in sizes of 3? and 4? with butt weld ends. If a Compact Swivel of a different material or size is required, please see our Compact Swivel Joint under the engineered Swivel range.

Our engineered Compact Swivel is available in sizes up to 12? also in various materials. Please note we also offer low temperature versions on request.

EWFM Specialise in Swivel Joints, Loading and Unloading Arms, Couplings, Breakaway Couplings, Filling and Emptying Equipment, Hose, Agitators and Mixers, Access Systems, Storage Tank Equipment and Aircraft and Helicopter Equipment for the Oil & Gas, Food and Drink, Chemical, Pharmaceutical, Power Generation and the Defensive and Aviation Industries.

Available Sizes

3?, 4?

Standard design

Carbon Steel Construction

Assemblies

Swivels are supplied as individual swivels or fabricated with elbows and end fittings in styles 20, 30, 40, 50 60, 70, 80 & 10.

Applications

• Loading Arms
• Low-profile pipework assemblies

What Are Swivel Joints Used For?

Swivel joints are precision machined components that are used to connect and prevent bends in stationary loading hoses that can reduce flow, tear, or rip, releasing harmful chemicals into the air. Also known as rotating pipe joints, swivel joints that rotate on ball bearings can provide many planes of rotation and stress relief to a product line; whether it is a loading arm, pipe, or hose.

Your Swivel Joint Supplier

Arm-Tex provides a full line of pipe swivel joints from OPW Engineered Systems, FMC Chiksan, Excel, Dixon, and Liquip that are versatile enough to handle a wide range of applications, including the petroleum, chemical, petrochemical, mining, refining, distilling, brewing, ink and paint industries.

What are Swivel Joints?

Most swivels are composed of two main parts (split flange swivels are slightly different). These parts are known as the sleeve and the body. The sleeve and the body each have a means of connecting with the fluid transfer system – such as threads or a bolted flange. The sleeve and body are locked in place by one or more ball bearing races.

The ball bearing races keep the swivel sleeve and body aligned and allow the swivel to rotate around its axis. Because the two parts of the swivel can rotate, system components connected to the two ends of the swivel can also rotate freely and independently around the swivel’s axis. Multiple swivels installed with different orientations allow multiple axes of rotation and more freedom of movement between two sides of a fluid conveyance system. Bearing races can be filled with different types of lubricants, including grease which is formulated for food applications. Bearing races can also be prepared for submerged service in a variety of fluid media.

Though the swivel’s ball bearings do most of the mechanical work, the most important part of the swivel joint is arguably the liquid-tight pressure seal that retains the pressurized working fluid. Pressure seals can be made from thermoplastics such as PTFE, and from elastomers such as FKM and nitrile rubber. The properties of these seal material options make them suitable for service with various fluids over a range of operating temperatures.

Are There Different Types of Swivels?

Yes! There are three main categories of swivel joints:

• O-Ring Swivel Joints use an O-ring for the pressure seal. These are generally more compact and rotate more freely than a V-ring swivel joint.
• V-Ring Swivel Joints use a triple V-ring packing for the pressure seal. These are robust swivel joints generally used in more severe applications. V-ring swivel joints typically handle higher moment loads than O-ring swivel joints and the seals are self-adjusting which typically allows for longer seal life.
• Split Flange Swivel Joints use a separate bearing pack design along with an H-ring with two O-rings for the pressure seal. Split flange swivels are equivalent to O-ring swivel joints in terms of required torque to turn, but have a load capacity comparable to V-ring swivel joints. Additionally, split flange swivel joints are more serviceable due to their easily accessible pressure seal and bearing packs.

Dixon swivel joints are available in a wide range of sizes and end configurations. Depending on the type of swivel sizes range from 1″ through 12″ and materials include brass, aluminum, malleable iron, 316 stainless steel, and carbon steel. End configurations include weld end, threaded, ASME, and TTMA flanges.

Source: www.ewfm.co.uk

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