What are the different types of expansion joints?
Types of Metal Expansion Joints
- SINGLE UNRESTRAINED.
- UNIVERSAL EXPANSION JOINT.
- SINGLE TIED EXPANSION JOINT.
- TIED UNIVERSAL EXPANSION JOINT.
- PRESSURE BALANCED ELBOW EXPANSION JOINT.
- GIMBAL EXPANSION JOINT.
- HINGED EXPANSION JOINT.
- IN-LINE PRESSURE BALANCED EXPANSION JOINT.
What are pipe expansion joints?
Piping Expansion Joints or Expansion Bellows are highly engineered mechanical devices containing one or more metal/rubber bellows. Expansion Joints are used to absorb dimensional changes caused by thermal expansion or contraction of a pipeline, duct, or vessel while containing the system pressure.
What is the specific use of an expansion pipe joint?
An expansion joint is installed in piping systems for a couple of reasons. Not only can they be used to absorb vibrations and shock, they can also be used to relieve anchor stress, reduce noise, and compensate for misalignment. Certain expansion joints are also designed for thermal expansion in very hot applications.
Why expansion joints are used in pipeline?
As pipeline expansion joints are designed to safely absorb the dimensional changes of steel pipe systems and ducts. Expansion joints also offer the advantage of reducing stresses in pipe systems generated by thermal expansion, and reduce pipe loads at connections to sensitive equipment such as pumps and steam turbines.
What is concrete expansion joint?
A concrete expansion joint – or control joint – is a gap which allows the concrete to expand and contract as/when the temperature changes. It forms a break between the concrete and other parts of a structure to allow movement without causing stress, which can lead to cracking.
What are expansion joints made of?
ASPHALT EXPANSION JOINT is composed of a blend of asphalts, vegetable fibers, and mineral fillers formed under heat and pressure between two asphalt-saturated liners. It is waterproof, permanent, flexible, and self-sealing.
What are the types of pipe joints?
Different types of pipe joints used in plumbing system are as follows.
- Threaded joint.
- Brazed joint.
- Soldered joint.
- Welded joint (butt welded, socket welded)
- Flanged joint.
- Compression joint.
- Grooved joint.
Where are expansion joints used?
Expansion Joints are a bellows type device. Expansion joints are used to absorb thermal expansion. They can also be used to absorb contraction in cryogenic lines and to reduce vibration in piping systems. Materials of construction for the bellows can be stainless steel or rubber or even a composite material.
What is bellow in piping?
Flexible bellows, also known as expansion joints, are flexible elements that absorb movements in the pipe system. These movements they absorb are defined by axial, lateral, angular and universal movements.
Other types of expansion joints can include: fabric expansion joint, metal expansion joint, toroidal expansion joint, gimbal expansion joint, universal expansion joint, in-line expansion joint, refractory lined expansion joint, and more.
What are the advantages of using pipeline expansion joints?
More advantages of installing expansion joints: Simple in design and function Space reduction Weight reduction Cost reduction Reduce engineering and design complexity to piping systems Better flexibility for piping layout Reliable and proven in the field
Why do I need a piping expansion joint?
Pipe expansion joints are necessary in systems that convey high temperature substances such as steam or exhaust gases, or to absorb movement and vibration . A typical joint is a bellows of metal (most commonly stainless steel), plastic (such as PTFE), fabric (such as glass fibre) or an elastomer such as rubber.
When are expansion joints needed for pipelines?
Pipe expansion joints are necessary in systems that convey high temperature substances such as steam or exhaust gases, or to absorb movement and vibration . Based on the type of material used in making of joint, expansion joints are further classified into following types,