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Expansion joints are major components in numerous industrial plants. They are used as flexible transition elements in tubular and duct systems (e.g. flue gas ducts of power plants) to compensate thermal expansion, vibrations, movements or inaccurate mounting. Expansion joints are custom-made to suit any particular application and are available as single- or multi-layer expansion joints. The latter are designed for the high-temperature sector and can be used up to 1400 °C. Single-layer expansion joints of fluoropolymer or elastomer, e.g. Viton®*), are specifically suitable for aggressive operating conditions, such as those in flue gas desulphurization plants..
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| The James Walker Townson range of gas turbine exhaust joints and the adjacent steel parts offer unique solutions to problems such as high temperatures, large movements, pulsations, vibrations and water washing. |
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PTFE Couplings
PTFE flexible couplings reduce noise and compensate for expansion and contraction in air conditioning and heating systems. Superior corrosion resistance for use in the chemical processing industry.
- Style 214
- Style 215
SABER™
Metal joints withstand pressures to 1,000 psi and temperatures to 1,500°F (815°C). Available in wide range of configurations and alloys.
- Garlock SABER™ Metallic Expansion Joints |
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In an isolated duct or in a duct system, both the circulating fluid temperature and pressure changes and the atmospheric changes may produce stresses that could quickly destroy the system if there were no elements that provided flexibility to the whole unit.
The solution to these problems is provided by the installation of Expansion Joints. SAFETECH has the means and knowledge to calculate those stresses and offer the most adequate solution and product for every case. The development of new solutions and products is the response given by SAFETECH to the increasing demand of energetic and environment efficiency.
This technical capability is the base of SAFETECH, an experienced team of technicians and engineers with many years of experience, allow us to cover all necessities that our clients might have in the Expansion Joints field. SAFETECH may offer any standard or special solution. Our program covers all three types of Expansion Joints: Fabric, Metal and Rubber, al! used as flexible elements to absorb vibrations, misalignments, thermal expansions, or any other movement caused by internal or external vibrations.
Safetech designs expansion joints by means of searching for the best technical and economical solution for different industrial sectors.
Power Plants
Petrochemicallndustry
Cogeneration Plants
Marine Industry
Cement Industry
Steel and Cast Iron Plants
Pulp and Paper Industry
The above figure represents a power plant.
The blue elements indicate the typical locations for the expansion joints. |
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With having over four decades of experience in the design and manufacture of both expansion joints and the textiles that comprise our products.
You as our customer can be assured that we have not only the technical knowledge but also the experience to service your specific industry. This includes application design, proper material selection and industry-accepted standards. |
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| Expansion joints are major components in numerous industrial plants. They are used as flexible transition elements in tubular and duct systems (e.g. flue gas ducts of power plants) to compensate thermal expansion, vibrations, movements or inaccurate mounting. Expansion joints are custom-made to suit any particular application and are available as single- or multi-layer expansion joints. The latter are designed for the high-temperature sector and can be used up to 1400 °C. Single-layer expansion joints of fluoropolymer or elastomer, e.g. Viton®*), are specifically suitable for aggressive operating conditions, such as those in flue gas desulphurization plants.. |
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Features:
- Absorbs large axial and lateral movements in any direction.
- Suitable for low pressure operations.
- Does not dampen the force produced by pressure.
- Must be properly anchored and guided.
- Available with ends flanged, prepared for welding or a combination of both. |
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Main features:
Expansion joints with a layer of reinforced material which consists of fluoroplastic or elastomer material laminated with one or more reinforcing fabrics and vulcanized to form a homogeneous product. |
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ensure the freedom of motion of flue gas ducts in power stations, gas turbines and other air and gas bearing systems. Regardless of how tough the requirements are, our expansion joints have passed the test of countless millions of operating hours and offer the ultimate in terms of reliability and operational safety.
Product Basics
Website of KE-Burgmann
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| A Rubber Expansion Joint is a flexible coupling made of synthetic or natural elastomers, mesh reinforcements designed to compensate elongations and contractions caused by variations of temperature, shock absorption and absorption of vibrations in fluid transmission installations. |
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Flanged and threaded rubber expansion joints and bellows axial expansion joints, series PN 10/16. |
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Available styles:
• Sealing surface with steel reinforcement for floating
flanges
• Back up bars with groves according to DIN PN 10/16
or ANSI 150lb
• Full face elastomer flanges with fabric reinforcement
• Back up bars with shoulder
• Male and female threads for size DN 15 - 80 mm
• Tie-rods
• Special tie rods for Lateral Expansion Joints
• Additional PTFE lining
• Vacuum supporting rings / spiral supports |
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Main features:
- Pressure moulded in shaped moulds.
- Round convolution.
- Choice of standard lengths.
- Rubber flanges with metal reinforcements.
- Drilled rotary metal flanges.
- Made with strong rubber-coated fabrics. |
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Materials
- Bellows, welding ends and flanges either produced from
carbon steel, stainless steel or high alloyed steel according
to specification or to be chosen to withstand the
current medium.
- Stainless steel and high alloyed steel are available from
stock to guarantee short time delivery. |
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STENFLEX fabric expansion joints are preferred in plant and equipment engineering involving gaseous media at high temperatures, e.g. hot air or flue gas. They are resistant to acid or alkaline gases and remain stable under high or low pressure.
STENFLEX fabric expansion joints are quality products used in components, plants, machinery and piping systems.
Their functions include:
- vibration and noise damping
- motion and expansion compensation
- compensation for imprecise assembly
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High levels of flexibility require ongoing adjustments.
Fine-tuning to meet requirements from industry and the newest technology.
STENFLEX PTFE expansion joints are particularly suitable for aggressive media. PTFE is virtually non-combustible and resistant to almost all chemicals and solvents.
STENFLEX PTFE expansion joints are commonly used in machine units, machines, industrial equipment and piping systems.
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As with all STENFLEX products, our rubber expansion joints are subject to continuous process improvement. This policy guarantees our customers state-of-the-art products. We optimize component formulas and develop new products in our own laboratories.
STENFLEX rubber expansion joints are used in plant units, machinery, apparatus, pumps and as part of pipeline systems. They are safe, efficient and require very little space. |
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STENFLEX steel expansion joints have had a proven track record in flexible pipe connection applications for decades. Even under extreme operating conditions. Our wide product range is able to meet varying industry application requirements, media and nominal widths as encountered in the engineering industry, motor, component and ship construction and building technology.
You will benefit from a product with:
- motion compensation
- expansion compensation
- tension reduction
- anti-vibration and noise damping properties
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| ... products without technical information |
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| The Single Gap Joint RS type construction consists of two heavy steel edge profiles with anchor brackets and a replaceable elastomeric sealing element. |
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