Swivel Joint 3885 Series Stainless Steel

EWFM’s Swivel Joint 3885 series was solely designed for easy maintenance and seal replacement. The 4 piece design allows the swivel to be easily removed and replaced. This therefore removes the need for cutting and welding pipe work sections. Consequently this is the main advantage over the Swivel Joint 2175 Series and Swivel Join 2833 series as these often need to be completely disassembled.

The Swivel joint also becomes particularly useful is areas where the swivel is hard to access or is in hazardous conditions. This swivel is constructed in Stainless Steel and is suitable for many applications in various industries. The most popular in this case being chemical.

Where you require a four piece design Swivel Joint however in a larger size please see our Engineered Swivel Joints or Large Bore Swivel Joints range. These can both be customised into a four piece design where required.

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

2?, 3?, 4?.

Standard design

Stainless Steel 304L or 316L

Assemblies

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

Applications

• Loading Arms
• Pipework assemblies

Examples of Swivel Joints

For this type of joint, the ends of the bones can only be twisted in relation to each other. No other joints are involved in this motion. We do not have very many swivel joints in the body, but the most common example is the joint that is built into the elbow joint. This type of joint, however, can also be found in the neck and allows us to be able to turn our head.

What is a Swivel Joint?

A swivel joint is a precision-machined flexible piping component installed between pipes, hoses, or equipment. Their design allows one component of the system to move/rotate relative to the other. Industrial swivel joints are designed to work for an extensive temperature and pressure range. They have to ability to absorb external forces and generated stresses. Properly designed swivel joints have the ability to allow 360-degree rotation in 1, 2, or 3 planes.

Applications of Swivel Joints

Swivel joints are used in various industries including

• Chemical and petrochemical industry
• Power plants
• Metal and mining
• Water preparation and municipal technology
• Pharmaceutical industry
• Food and drink industry
• Refining industry
• Test stands
• Cooling water supply and water treatment plants
• Hydraulic systems and pneumatics
• Ink and paint industry
• Brewing and distillation industries
• Automotive industry
• Recycling industry
• Loading equipment
• Aviation and shipbuilding
• Paper and wood industry
• Cryogenic industry
• One of the common uses of swivel joints is in marine loading arms.

Materials for Swivel Joints

Swivel joints are manufactured from a range of materials depending on application requirements. Some of the common swivel joint materials are:

• Carbon Steel
• Stainless Steel
• Aluminum
• Brass
• Ductile Iron
• Bronze
• Hastelloy
• Duplex Steel
• Monel
• PTFE Lined

Characteristics of Swivel Joints

The main characteristics of swivel joints are:

• They are compact engineered components.
• They provide tight Seals
• They have a protected bearing chamber
• Long-Life Bearings
• Easy Lubrication
• No Field Adjustment is Necessary
• They are rigid, safe, and sustainable
• Swivel joints are available in various sizes starting from 3/4 inches.
• They are usually produced in flanged, threaded, and butt-welded end connections.

Working of a Swivel Joint

Swivel joints are usually made up of two main components; the sleeve and the body. They are locked in place by one or more ball-bearing races. These ball-bearing races keep the body and swivel sleeve properly aligned to allow the swivel to have a rotary motion around its axis. As the two parts of the swivel can rotate, the piping system components connected to the two ends of the swivel will also rotate freely and independently around the swivel’s axis. To have multiple axes of rotation, multiple swivels are installed with different orientations. This allows the system more freedom of movement between the sides of a fluid conveyance system. Different types of lubricants can be used to lubricate the bearing races.

The actual mechanical work is performed by the swivel’s ball bearings. However, the most important part of the swivel joint is the liquid-tight pressure seal that retains the pressurized working fluid. Pressure seals can be made from thermoplastics or elastomers like PRFE, FKM, Kalrez, fluoroelastomer, Chemraz, and nitrile rubber. The properties of these seal material options make them suitable for service with various fluids over a range of operating temperatures.

Types of Swivel Joints

Swivel joints can be categorized based on various parameters as mentioned below:

Depending on the end connection, there are three types of swivel joints

• Flanged swivel joint
• Threaded swivel joint, and
• Welded swivel joint.

Read More Articles :

• Industrial Breakaway Couplings
• Large Bore Swivel Joints, Standard and Specialist Materials up to 72?
• Swivel Joint 536 Series, Aluminium for loading arms
• Swivel Joint 3996 Series, Carbon Steel and Low Profile
• PHILLYSTRAN ROPE THE PERFORMANCE LEADER

Source: www.ewfm.co.uk