Anti-vibration compensator. Flexible flange compensator (anti-vibration)

When the temperature of the transported and environment pipeline deformations may occur. It lengthens when exposed to high temperatures and, accordingly, shortens when exposed to low temperatures. Due to this process, existing connections begin to collapse, and the pipes become bent.

Rubber products make it possible to replace such changes and maintain the integrity of the structure. The work of compensators is based on elasticity - these devices can both be compressed and unclenched. The load on the pipeline is thereby minimized and compensated, most often due to the elastic characteristics of the metal used for the compensating flow to prevent clamping.

Classification

In industry today, rubber compensators of the U-shaped and corrugated type have become widespread. The latter are divided according to the type of flexible part into lens, bellows and wavy. There are also stuffing box compensators, but they have not become widespread.

Corrugated parts are divided into axial, angular, rotary and semi-balanced.

Thanks to axial compression, the absorption of elongation is carried out by axial and semi-balanced expansion joints. Devices corner view They do this by bending, and rotary ones by the method of transverse displacement of the elastic part.

Purpose

When designing equipment and industrial facilities the intervals of working divisions, vibrations and oscillations, the amount of compensated displacement, and aggressive chemical environments must be taken into account.

The flange compensator is made from special rubber. The many advantages of the device make it possible to use the product in various situations. There is an elastic part made of elastomers, which is not subject to fatigue and thinning. The main task of the compensator is to remove the vibration load from the equipment. Also, an elastic, pliable bellows compensates for temperature movement of equipment and pipelines. When installing the device, no special equipment is required.

For every task you need optimal solutions, conditions of use and specific sizes. Therefore, high-quality expansion joints must be both functional and cost-effective.

Vibration inserts are made from synthetic or natural materials, they are lightweight, high resistance to shock loads, easy to install and further maintain. They are designed for a long period of operation.

The anti-vibration compensator is sold in several types, for different environments in pipelines. It is not susceptible to rust and can be used under significant mechanical loads.

Stuffing box expansion joints

Operation is carried out in temperature range up to 300 degrees and pressure no more than 1.7 MPa. The device is a pipe inserted into the body. For tightness, the gap that appears between the base and the pipe is sealed using a ring with a grand axle.

This type of compensator can be one-sided or two-sided. It is small in size and has a good compensating characteristic, but it is difficult to achieve proper sealing, which is why it is less in demand than others. Among the shortcomings, it is worth noting rapid wear and tear, which is why it requires systematic inspection and preventive maintenance.

Wavy expansion joint

This device has the greatest compensating characteristic in combination with small in size. The flexible part of the compensator is a corrugated elastic shell. Can be used in a temperature range from -80 to +800 degrees.

Due to the use of such devices, pipe consumption is reduced, the existing hydraulic pressure and the number of fixed supports used. The latter is achieved by transferring minimal forces to the support structure.

Bellows compensator

The device has become widespread on pipelines with a diameter of 10 to 1000 mm that transport liquid and vapor media. The main elastic part is the bellows, which is a curved metal part with hollow contents. Due to the special design of the bellows, the rubber compensator is capable of bending, elongating and compressing with large displacement under the influence of longitudinal, transverse and angular moments, while deformation occurs in the transverse direction while maintaining tightness.

It is possible to use it at high pressure and temperature for corrosive environments, and good sealing performance is also noted. The compensator has become widespread in the chemical, oil, gas, and energy industries.

Lens compensators

They consist of several lenses with a specific connection to the pipeline. These are elements consisting of the thinnest steel half-lenses. The operating principle of devices of this type is based on light compression of elements, each of which has a compensatory capacity in the range from five to eight millimeters. Designs with multiple lenses are in greatest demand. There is also a division into rectangular and round, suitable for the corresponding shape of the gas pipeline.

Lens compensators are installed on pipelines with a diameter from 100 to 1500 mm. Among the advantages of this type, it is worth noting its small dimensions and weight. Weak sides consist in low compensating characteristics and the possibility of use only at fairly low pressure.

U-type compensator

The greatest compensating characteristic is distinguished by U-shaped compensator. It has become widespread in technological aboveground pipelines with any conditional passages. These types of expansion joints are produced using bent, large-angle bent and welded bends.

Among the main advantages are ease of production and ease of use. But to use such devices, additional construction is required. supporting elements, they are also characterized by increased hydraulic resistance and require high flow rate pipes during installation.

Fabric compensator

Most often used in systems with a temperature of no more than 1300 degrees that transport gaseous media.

Such devices are made from one or more layers of insulating or gas-dense material, assembled together to create a dense base. Gas-tight material is produced from various coatings, has a distinctive resistance to chemical attack, superior in some cases even to stainless steel. Mounting possible various types, for example, under a clamp or flange type 101. Internally insulated design is used for temperatures above 600 degrees.

Rubber compensator

They are mainly used in pipeline systems pumping liquid media. The transported liquid can have a temperature of up to 200 degrees. The rubber compensator is connected to the pipeline using flange method. To increase resistance to negative external influences, a fire-resistant cover is used.

Devices are made of rubber various types and have cord reinforcement. Depending on the purpose and type working environment the appropriate elastomer is installed.

Today, the flanged one is produced by a number of European manufacturers; it is made of special rubber, due to which it can be used in the food industry.

Distribution area

The compensator can be used to transport the working water medium, oil and its refined products. A special material is used for working environments with high chemical activity. To increase resistance to chemical attack, a special Teflon coating is also used. Corner stops and connecting rods are designed to increase the reliability of the connection.

Rubber products have become most widespread in the organization of water supply, sewerage pipelines and the oil industry. They are recommended for installation between the pump and pipes by most manufacturers pumping equipment. Thanks to this, it is possible to compensate for the vibration coming from the pump, and accordingly, the reliability and service life of both the system and the equipment connected to the pipeline increases.

Conditions of use

At proper installation and operation at suitable conditions and environmental parameters, no special care is required, except for standard inspection at the installation site. After starting the pipelines, re-tightening of the bolts is necessary.

Temperature deformations of the bellows, such as tears, cracks, hardening and swelling, are not allowed. It is important to carry out a systematic inspection for displacement, rust and to control the strength of elements. Inspection frequency is affected by unintended vibrations, system functions and loads.

During use, do not clean the surface with brushes or steel wool. Cleaning should be carried out with a special solution with a low alkali content and rinsing with plain water.

The rubber flange compensator KMS has a certain service life, which provides for the absence of excess temperature and mechanical influences. Installation is possible only in those places of pipes that are pre-determined by the project.

It is important that there is no twisting using significant force from the elements of the device. If the piping system is designed for a conductive light medium and is hydrotested with a heavier medium, precautions must be taken to carry more than the specified weight.

The rubber compensator is a non-repairable product and must be replaced if its stable and sealed characteristics are lost.

Summary table of sizes

The rubber flange compensator is a non-repairable element used to protect sensitive elements components from vibrations, water hammer, compensation for pipe displacement, noise reduction. Structurally, it is distinguished by the presence of a vibration insert (rubber elastic element) in the compensator. The production technology involves the use of heat-resistant polymer rubber as a raw material for the vibration unit. This allows you to extend the service life of the rubber compensator due to its resistance to high blood pressure and temperatures. The sizes of the rubber flange expansion joint vary from DN 25 to DN 1000. Installation and operation of this product are as simple as possible. SanTermo implements rubber expansion joints flanged of all models and diameters.

Scope of application of flanged, flexible (anti-vibration) compensator

The use of a rubber flange compensator protects against vibration shocks and compensates for different levels of displacement and elongation of the pipeline. Rubber flange compensators are used in pumps, fans, coolers, radiators, vibration dampers, piping systems, air conditioning and ventilation systems, to dampen vibration loads, and in water control systems. Thanks to innovative technologies manufactured anti-vibration rubber flange compensators are capable of operating long time, resistant to impact high temperatures and pressure. This type of compensator is used only in systems with non-aggressive liquids.

Advantages of Santermo expansion joints

When compared with similar products from other companies, such as tecofi flanged compensator, grundfos rubber compensator, genebre flanged compensator, our anti-vibration compensators have a number of advantages:

• Reasonable price;
• European quality;
• 12 month warranty;

Cooperation with the manufacturer has always been profitable. Firstly, only from us you can buy a rubber flange compensator of any modification, size and in any quantity. Secondly, there is absolutely no markup from resellers, so the price of a rubber compensator is the lowest. Thirdly, as a manufacturer, our company guarantees the quality of its products.

• flange flexible compensator
• anti-vibration flange compensator

Tags: Flange rubber compensator price, anti-vibration compensator flange price, anti-vibration flange compensator, flexible flange compensator, coupling anti-vibration compensator.

When transporting products in a pipeline system, thermal deformation is possible, which occurs due to changes in ambient temperature and, as a consequence, the temperature of the transported product.

Such deformations lead to the emergence of very significant longitudinal forces, which negatively affect the final fixed points. If we take into account that pipelines can be long, the total impact increases significantly and can reach significant values.

Contents of the article

Description and purpose of compensators

In order to avoid negative impact load associated with an increase, or, conversely, with a decrease in temperature, during the pipeline design process the possibility of its free extension or shortening is provided.

In this case, it is very important that overvoltage does not occur, both in the material itself and in those places where the pipes are connected. In principle, compensation for changes in length in some cases occurs due to design features pipeline and due to the fact that the metal itself has elasticity and resilience.

For such situations there is a term “self-compensation”: it becomes possible due to the fact that it has turns and bends. If self-compensation is not possible, an anti-vibration rubber flange compensator is used.

The product has the necessary flexibility and extensibility, and can ensure a tight connection even during the movement of pipeline elements. Compensators can differ in operating principles and design features.

Now four types of compensators are used:

• pipe;
• lens;
• stuffing box;
• bellows.

A special group consists of the so-called vibration compensators, or rubber compensators, which are of the bellows type and the most common are Tecofi and Danfoss.

Areas of application and characteristics of the Tecofi vibration compensator

The Tecofi universal vibration compensator can be coupling or flange. Such products are used to compensate for the thermal expansion of the pipeline, but at the same time they also perform the following functions:

1. Prevents possible destruction of metal pipes in cases where pipeline deformation is possible.
2. Align misalignment pipeline system, which may result from installation work.
3. They isolate vibration loads that occur during equipment operation or during transportation of the medium in a pipeline.
4. Protect sensitive components from the negative impacts that may occur as a result of pipeline operation.

EPDM rubber is used to make the Tecofi body, nylon cord is needed to strengthen the structure, and couplings for connections are made of cast iron. The compensator design consists of two couplings, between which there are two convex rubber waves, and to prevent mechanical damage or rupture, nylon cord is used. The working medium may be a liquid non-aggressive medium, air and water, hot or cold.

Most often, the Tecofi universal anti-vibration compensator is used in:

• thermal systems;
• pumping systems;
• cooling systems;
• air conditioners

How to properly operate and store the Tecofi vibration compensator

During the operation of Tecofi rubber expansion joints, to ensure high functionality, their technical specifications. This applies in particular to maximum operating pressure, maximum operating temperature and maximum compensation capacity.

These indicators should not be higher than those indicated in the technical data sheet, which each anti-vibration compensator has, in addition, the compatibility of the materials from which the universal compensator is made and the conductive medium must be taken into account.

When storing products, you must also adhere to certain rules:

1. Air temperature ranging from 0º to +30º ( best option– +20º).
2. Protection from bright light and direct sunlight.
3. The room should be ventilated, and the expansion joints themselves should be stored on a hard and level surface.
4. Protection against chemicals, oils, grease and mechanical damage must be ensured.

Danfoss expansion joints

Rubber compensator flanged Danfoss has a wider range of applications, primarily because it can be used in pipelines where not only cold and hot water, but also compressed air, and sea ​​water, alkalis and weak acids. The ambient temperature can vary from -20º to +95º, which also plays a big role for some of its species.

They have a warranty period of one year, but correct installation, as well as the necessary after-sales service, their service life is at least five years.

An anti-vibration universal compensator is selected depending on the diameter of the pipeline, which in turn is selected depending on the speed of the medium and its flow rate. The only caveat is that you must make sure that the operating pressure and temperature are acceptable for this particular type of Danfoss insert.

Flanged rubber expansion joints for pipelines (video)

Features of installation and storage of the Danfoss compensator

The flanged Danfoss is mounted in an arbitrary spatial position, and the choice of a specific location depends on the conditions in which the pipeline is operated, as well as the maximum permissible deformation value.

Additional pipeline supports must be provided in the immediate vicinity of the installation site. The distance between the support and the insert should not be more than three pipe diameters.

In addition, when installing the structure:

• Flexible components should not be allowed to twist;
• the degree of pre-compression should be no more than 5 millimeters;
• the alignment of the connected pipes should not exceed 3 millimeters;
• The surface of each flange must be thoroughly cleaned and free of sharp edges.

Cannot be produced welding work, if there is a universal vibration compensator in the immediate vicinity, or it must be dismantled. In addition, paint coatings, heat-insulating and noise-absorbing materials cannot be used.