Rubber flange compensators vibration inserts vibration compensators flexible inserts. Vibration compensators Design of the anti-vibration flexible connector

It's all about their design features:

• the elastic element of the flexible insert is maximally resistant to aggressive media. He is not harmed by constant pressure hot water, and even after a long use, the element will not lose its functions;
• compensators are flexible enough, which allows them to successfully restore their shape after mechanical impact. In addition, the flexibility allows expansion joints to be installed in pipelines with little misalignment;
• pipes are subjected to shock loads, vibrate strongly and make noise? All these problems will be eliminated after the installation of a compensator that successfully resists water hammer;
• heat resistance - flexible connectors made of heat-resistant synthetic rubber of a special composition;
• light weight, due to which it is very convenient to transport them, and the installation process will not cause difficulties.

Flexible connectors will increase the service life of pipes

A flexible joint, also referred to as a vibration damper, is an element whose main purpose is to reduce or completely eliminate noise. In addition, these parts dampen vibration, absorb hydraulic shocks, and compensate for displacements, shifts, and thermal elongations.

All these factors make vibration compensators indispensable in pipelines - they are installed in water and gas supply systems, air conditioning, etc. As a result, the service life of pipes is significantly increased.

Quality assurance

ADL guarantees that all flexible connectors purchased from us will perform their functions as accurately as possible - the products have a GOST P certificate of conformity.

Installing a vibration compensator will give confidence that the pipes will not fail at the most inopportune moment. You will save big money on repairs,
and eliminate the need to spend too much time inspecting pipelines. With us you will receive high-quality service support, as well as a guarantee for all purchased goods.

Good day, dear readers of the blog site

In the heading "Accessories" we will consider vibration inserts. In our modern life pumping equipment is used very widely and diversely. The main purpose of anti vibration inserts prevent the transmission of vibration, mechanical stress noise through pipeline systems, they are also used as compensators for various deformations (temperature, linear and angular). They are used in heating and air conditioning systems to compensate for thermal elongation and compression of pipelines, in water supply systems to prevent the transmission of mechanical vibrations from the pipelines of the system, as well as to protect pumping equipment and pumping stations from the mechanical impact of pipelines connected to them. Compensators are also designed to reduce or prevent. Their use significantly increases the service life of the system as a whole. How to connect to the system vibration inserts or compensators subdivided into coupling and flange. As a working medium in pipelines where sleeve and flange vibrating inserts are used, there can be water, steam, air, gas, oil products, food products.

Technical parameters and materials

• Working pressure: Ru=16 bar.

Connecting diameter coupling vibration inserts: DN 15-50 mm

Applicable materials:

• The inner layer of the bellows is EPDM;
• Bellows frame - nylon fabric cord;
• The outer layer of the bellows is EPDM;
• The coupling connection is made of steel.

Parameters of coupling vibrating inserts:

• Working temperature of the environment: +110°С;
• Working pressure: Ru=16 bar.
• Working pressure: Du 32-600 - Ru=16 bar.
• Working pressure: Du 700-1200 - Ru 10 bar.

Connecting diameter flanged vibration inserts: DN 32-1200 mm

Applicable materials:

• Connecting flanges - steel;
• Bellows rubber - EPDM;
• Bellows frame steel cord - carbon steel; nylon cord is a synthetic fiber.

Device and design

The device and design of compensators (Fig. 1)

The bellows, vibration insert or compensator has a complex, multilayer structure. It consists of outer (Pos. 1), inner (Pos. 3) layers and a frame (Pos. 2). The inner layer is a tube, seamlessly made of rubber, extending beyond the compensator flanges. Direct contact with the medium is carried out precisely by the inner layer. It also performs the function of protection for the compensator frame from impact. adverse conditions environment. An important condition in the production of vibration inserts, is right choice elastomer, either natural or synthetic. Both of these materials have good properties, they are resistant to liquid or gaseous media, ranging from plain water to sulfuric and hydrochloric acids dissolved in it. The frame is the elastic part of the rubber compensator, which consists of several layers of very high quality synthetics, such as nylon. The fabric layer is impregnated in the carcass with mixtures of synthetics or rubber. This was done in order to give them flexibility and mobility. The outer layer of the carcass protects the compensator from negative impacts external environment and ultraviolet rays. Rotating flanges (Pos. 4) PN 10 or PN 16 are used to connect a compensator or vibration insert to equipment and pipelines, and American females are used for coupling connection. Flanges are made of carbon steel.

Installation and operation

During installation vibration inserts or compensators you need to pay attention to the following:

1. The inlet and outlet pipelines must be centered and fixed. Expansion joints must not be used as a support structure.
2. The maximum compression of the rubber compensator should not exceed 5 mm.
3. Twisting of the compensator is not allowed.
4. It is necessary to fasten the pipelines from the rubber compensator at a distance of at least three pipeline diameters.
5. Mounting bolts must be installed without direct contact with the rubber. Installation procedure: the bolt is installed on the side of the compensators, and the nut on the side of the pipelines. In the case of operation of vibration inserts in systems with increased loads on pipelines, rod set, protecting compensator - vibration insert from exceeding the allowable value of stretching or twisting.
6. Simultaneous operation of the compensator in tension and twisting is prohibited.
7. In case of welding work the rubber part of the compensator must be protected.
8. It is forbidden to paint compensators or vibration inserts, as well as cover them with a layer of insulation.

Due to the vibration inserts, it is not possible to compensate for misalignments that occur during the installation of the pipeline. Suction and pressure pipes must be equipped with appropriate supports, mounted as close as possible to the pump. The mating flanges must be laid relative to the pump flanges in such a way as to exclude any transmission of voltage from them to the pump, as this can lead to damage to the pumping equipment. Expansion joints should be mounted directly from the pump at a distanceequal to one or two nominal flange diameters, both on the side of the suction pipeline and on the side of the discharge pipeline. This will avoid the formation of turbulent flow in expansion joints and creates optimal conditions during suction and will create minimal pressure losses in the discharge pipeline. At high water flow rates (more than 5 m/s), vibration inserts should be mounted bigger size according to the pipeline diameter. For flanges with diameters greater than DN 100, expansion joints with limiting braces must always be used. On (Fig. 2) an example of mounting vibration inserts

To extend the life of pipelines, it is necessary to use elastic vibration inserts or compensators. They compensate for changes in the length of pipes, when they expand or contract, as well as possible ruptures of pipelines as a result of temperature changes, pressure changes, and the presence of various vibrations in pipelines. For optimal performance pumping equipment, and to minimize noise and vibration, it is necessary to provide ways to dampen vibration from the pump. These methods must be used in without fail if pumping equipment with electric power over 11 kW is operated. Although the possibility that engines with less power can also create unwanted noise and vibration. To reduce these consequences, vibration inserts and vibration supports are used. Vibration inserts have good soundproofing properties, they absorb and reduce the noise that is inevitable during the operation of pumping equipment, and are also resistant to hydraulic shocks that occur during the operation of pumps. Vibration mounts are designed for passive and active vibration isolation of pumping equipment, as well as for height adjustment when installing pumps according to the level. To compensate for the movement of pipelines during shifts, shear compensators are used. They have stop rods designed to protect the vibrating inserts from damage. Limiting rods can be set for both compression and tension. These compensators can be operated very long time, since due to this design, the expansion force is not transmitted to the equipment.

Vibrating inserts do not require constant technical maintenance or repair if the operating conditions are observed. Periodically, it is necessary to carry out technical inspections for the absence of leaks, and, if necessary, tighten the fixing bolts or coupling connections.

Thank you for your attention.

Vibration compensators (vibration inserts) are auxiliary pipeline fittings. The main purpose is to absorb vibrations created by other equipment in the system: pumps, compressors. They are also used to compensate for thermal expansion of pipes and lateral, angular displacement within the limits allowed by the design of a particular rubber compensator (depending on the diameter - up to 22 mm lateral and 45 ° angular displacement). They help to reduce noise from the operation of equipment that creates vibrations, to protect against water hammer. By their work, they significantly extend the service life of the pipeline system, therefore they are mandatory installed after equipment that creates vibrations, transverse and longitudinal displacement and stretching of sections of highways. Installed next to equipment that creates large vibrations.

The design of the anti-vibration flexible insert

The standard vibration compensator consists of the following parts:

• rubber sleeve or housing;
• fastening to the pipeline system (2 flanges or threaded fittings);
• reinforcing cord.

What materials are vibration compensators made of?

Of course, different manufacturers may offer different versions of this equipment. We will tell you what materials are used in the manufacture of our anti-vibration inserts.

• Flanges / threaded connections: carbon steel.
• Reinforcing cord: carbon steel.
• Housing: EPDM (rubber).
• Rushwork vibration compensators also use an internal filler - nylon cord.

Depends on the body material Maximum temperature working environment, which the vibration insert can skip. As a rule, it is from -20 to +105-110°C. Vibration inserts are used for hot and cold water, they can also be used in air transportation. For gases, vibration inserts with a sleeve made of MBR are usually used.

Video: vibration compensator in action

You can buy vibration compensators wholesale and retail in the company "RU100"

We always have pipeline equipment for vibration damping in the pipeline, including vibration inserts from a Spanish manufacturer Genebre and Russian Rush work. Let's pick suitable equipment specifically for your system. We work directly with suppliers, we have our own warehouse, so prices remain low. Reliable supplier pipe fittings- this is us!

• Our engineers have been working in the industry since 2008. We know what we sell and will be happy to help you choose the right model.
• We will deliver your order in Russia! Or self-pickup from our

Compensators used to eliminate vibration on pumping equipment are placed at a distance from the pump nozzles in the range from 1 to 1.5 nominal diameters of the compensator. In some cases d the installation of a rubber compensator is lowered directly to the pump nozzle (If the manufacturer of the product, in the technical documentation, allows the possibility of such an installation). Operation of the compensator with a closed or partially closed valve is not allowed.
Front the beginning of the work on the installation of the product, vibration compensator must be checked, making sure that it surfaces in contact with the joint are carefully cleaned and free of sharp edges that could damage the joint surface. installation work twisting, compression, bending or stretching of the flexible element of the product is not allowed. Preliminary compression should not be more than 5 mm.
During installation, the piping must be recorded in special supports ah, located close proximity to the compensator. The distance between the supports and the flexible connector must not exceed three pipeline diameters.
Gaskets between the compensator and pipeline flanges are prohibited, since the design of the product already has a protruding part of the elastic element providing a tight connection. T Also, the use of lubricants is not allowed, as this may adversely affect the material properties of the product and lead to pulling out the rubber flange of the compensator from the connection.
Bolts should be tightened crosswise. The bolt holes must be exactly aligned with the corresponding holes in the counter flanges. The compensators are equipped with rotating steel flanges, which simplify installation and reduce the risk of damage to the elastic element due to torsional deformation. towards the flexible element, nuts are installed on the side opposite the elastic elements to prevent damage to the compensator. If this is not possible due to various reasons, the threaded part of the bolt should not protrude more than 2-3 mm to prevent damage to the bellows.

Do not perform any pressure or leakage test on the system until correct installation fixed points, guide supports, connections, fixtures and other elements of the system. Sudden pressure drops in the system exceeding the calculated parameters are not allowed. When performing welding work, the flanged vibration compensator must be dismantled or reliably protected from splashes of molten metal on it and is located at a sufficient distance from the place of work, since the impact elevated temperature can damage the elastic element of the compensator.