Industrial applications are some of the harshest environments in industry, subject to intense heat, pressure, vibration, and their combined effect on plant equipment.
Metallic expansion joints are available in a wide range of materials: from various stainless steel, high nickel alloys (Inconel, Hastelloy, Monel), Duplex stainless steel, and Titanium.
An expansion joint is any apparatus containing one or more metal bellows used to absorb dimensional changes such as those caused by thermal expansion or contraction of a pipeline, duct, or vessel and to absorb vibrationscaused by engines, pumps, motors, etc.
In other words, a metal expansion joint is a device primarily formed by flexible bellows used to absorb movements in a piping system while containing pressure and a medium running through it.
The key element of an expansion joint is the bellows. The bellows is a flexible element consisting of one or more corrugations and the end tangents.A corrugation (convolution) is the flexible unit of a bellows and end tangents are the straight un-corrugated portions at the ends of a bellows.
The flexibility of the bellows is derived from the inherent flexibility of the corrugation given its shape and its own design.
Thermal expansion of piping.Flexible equipment connection when higher temperatures and compression movement is required.
Seawater, fresh water, drinking water, domestic sewage, crude oil, fuel oil, air, gas, steam and granular powder.
Luoying
Pipe- 2-1/2” - 100”
50, 150, and 250 psi
Air flue rubber joint compensator is composed by rubber composite materials, steel flange, sleeve, thermal insulation materials. Mainly used in various fan, air duct for flexible connection. The function is shock absorption, noise reduction, sealing, medi
Flue duct expansion jointsare custom engineered to handle low pressure (±3 psig) applications with temperatures ranging from -100°F to more than 2000°F. Industry Proven materials and precise engineering go into every LUOYING Fabric Expansion joint.
Buried corrugated compensator mainly used in buried pipe axial compensation, has super anti-bending ability, so buried compensator shell can freely expansion compensation under the protection of sleeve.
Metal bellows expansion joints (also called Metal Expansion Joint) are compensating elements for thermal expansion and relative movement in pipelines, containers and machines. They consist of one or more metal bellows, connectors at both ends, and tie rod
Thermal movements would generate in any rigid pipe systems because of temperature changing. Due to its annular corrugations, the Style LD-MC Stainless Steel Flexible Connector allows for axial compression or axial extension, lateral deflection as well as
Expansion joints come with three convolutions as a standard. More than three convolutions can be customized and the more convolutions, the more movement an expansion joint will provide. Various reinforcements of rings and outer shells are available for hi
Hinge corrugated compensator also called expansion joint, slip joint, composed by bellows, tube, bracket, flange and catheter. Design temperature：-20~+400℃
Universal hinge compensator mainly compensate bending pipeline synthesis displacement by the way of angular deflection.
Axial external pressure bellow compensator also called shock absorption ripple compensator, corrugate pipe, expansion joint or slip joint.
Pressure Balanced Expansion Joints do not transfer the internal pressure thrust on to the fix points, adjacent equipment, or structures. Fix points are usually not required, only guides can ensure the turning of thermal expansion into a controlled movemen
Rectangle ripple compensator (FGFB) also called rectangle of corrugatedexpansion joint, and rectangular corrugated expansion joint, axial, lateral,angular compensation function. Especially suitable for power plants, steel mills, coke, cement industry.
Metal bellows expansion joints (also called compensators) are compensating elements for thermal expansion and relative movement in pipelines, containers and machines. They consist of one or more metal bellows, connectors at both ends, and tie rods that de
Sleeve type compensator is also called tubular expansion joints,Is the hot fluid pipeline compensator,mainly used for line pipe and auxiliary axial thermal expansion displacement after absorption compensation,is a kind of directly installed in any ...
Rubber expansion joints are mainly manufactured by manual wrapping of rubber sheets and fabric reinforced rubber sheets around a bellows-shaped product mandrel. Besides rubber and fabric, reinforced rubber and/or steel wires or metal rings are added for additional reinforcement. After the entire product is built up on the mandrel, it is covered with a winding of (nylon) peel ply to pressurize all layers together. Because of the labor-intensive production process, a large part of the production has moved to eastern Europe and Asian countries.
Some types of rubber expansion joints are made with a molding process. Typical joints that are molded are medium-sized expansion joints with bead rings, which are produced in large quantities. These rubber expansion joints are manufactured on a cylindrical mandrel, which is wrapped with bias cut fabric ply. At the end the bead rings are positioned and the end sections are folded inwards over the bead rings. This part is finally placed in a mold and molded into shape and vulcanized. This is a highly automated solution for large quantities of the same type of joint.
New technology has been developed to wind rubber and reinforcement layers on the (cylindrical or bellows-shaped) mandrel automatically using industrial robots instead of manual wrapping. This is fast and accurate and provides repeatable high quality. Another aspect of using industrial robots for the production of rubber expansion joints is the possibility to apply an individual reinforcement layer instead of using pre-woven fabric. The fabric reinforcement is pre-woven and cut at the preferred bias angle. With individual reinforcement it is possible to add more or less fiber material at different sections of the product by changing the fiber angles over the length of the product.
Piping components can be bolted together between flanges. Flanges are used to connect pipes with each other, to valves, to fittings, and to specialty items such as strainers and pressure vessels. A cover plate can be connected to create a "blind flange" Flanges are joined by bolting, and sealing is often completed with the use of gaskets or other methods. Mechanical means to mitigate effects of leaks, like spray guards or specific spray flanges, may be included. Industries where flammable, volatile, toxic or corrosive substances are being processed have greater need of special protection at flanged connections. Flange guards can provide that added level of protection to ensure safety.
Fasteners are used for fastening and securing materials such as wood, metal, plastic, or concrete. They include nuts and bolts, threaded rods, structural bolts, machine screws, wedge anchors, washers, rivets, and more in a variety of types and sizes, including metric and inch.
In systems that have a media with significant particulate content (i.e. flash or catalyst), a barrier of ceramic fiber can be utilized to prevent corrosion and restricted bellows flexibility resulting from the accumulation of the particulate. Purge connectors may also be utilized to perform this same function. Internal liners must also be included in the design if the expansion joint includes purge connectors or particulate barriers.
A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. It is a deformable material that is used to create a static seal and maintain that seal under various operating conditions in a mechanical assembly.