Relevance

Lined expansion joints dampen temperature variations in the length of rectangular and circular gas and air ducts as well as steam and water pipes in thermal power plants and other facilities. Lined expansion joints are suitable for use in non-aggressive or slightly aggressive media.

Production

Depending on operation peculiarities as well as climatic temperatures influence, expansion joints are made of such steels as St20, St3sp5, 09G2S, 08Õ18Í10T, 12Õ18Í10T, 10Õ17Í13Ì2T, 08Õ18Í9, 12Õ18Í10T, 20Õ20Í14Ñ2, 10Õ17Í13Ì2T, 09G2S, 20, 10, 18Ê, 17GS.

Compensators of this type are manufactured according to OST for axial line compensators of section from 10 to 2200 mm and eliminate temperature axial expansion of pipelines operated in low-aggressive and non-aggressive media with temperature to 300 °C, nominal working pressure to 16 ^kgf/cm2 (, 6 MPa).

Lined compensators are additionally equipped with 1) protective inner casing (thermowell or cup) to protect bellows or lenses from mechanical impurities, which enter through the compensator together with the working medium, 2) drainage tubes designed to drain condensate formed in the area of lens cavities, 3) couplers (clamping devices).

Operating parameters

- Pressure-conditional range depending on vacuum no more than 10,0 MPa.

- Range of nominal diameters 50 - 8000 mm

- Temperature range from -240 °С to +1000 °С.

Lens compensators are made in two designs: under welding and flanged.

Axial Lens Compensators

They are produced according to OST: single-lens compensators - OST 34-10-569-93, 2-lens compensators - OST 34-10-570-93, 3-lens compensators - OST 34-10-571-93, 4-lens compensators - OST 34-10-572-93.

Lens Corner Compensators

Angular Lens Compensators.

Lens Corner compensators are produced according to OST: 1-lens compensators - OST 34-10-573-93, 2-lens compensators - OST 34-10-574-93, 3-lens compensators - OST 34-10-575-93, 4-lens compensators - OST 34-10-576-93.

2.Linzovye dual angular.

Double angle (2-plane) lined compensators are manufactured according to OST: single-lens compensators - OST 34-10-577-93, 2-lens compensators - OST 34-10-578-93, 3-lens compensators - OST 34-10-579-93, 4-lens compensators - OST 34-10-580-93.

Lens compensators of circular section

Single-lens compensators are made of half-lens and lenses welded at the wave troughs and tops. Having high stiffness for angular and shear displacement, such compensators are widely used to compensate axial displacement in those systems that have high operating pressure or temperature. They are commonly used in the chemical, gas and oil refining industries to compensate for temperature fluctuations in the bodies of gas turbine and heat exchange equipment.

Rectangular/circular GGVU compensators

Expansion joints of gas-air ducts of boiler units. These expansion joints are used in low-aggressive environments at t ° from -20 ° to +425 ° C and overpressure up to 1500 mm water column (0.015 MPa).

Production

Compensators GGVU round lenght compensators have DN from 150 to 6000 mm. They are produced as one-, two-, three- and four-lens compensators and have different compensating capabilities. Rectangular PGVU Lens Compensators have sizes 300x400 - 7850x8000 mm and are also available as single, double, triple and four-lens compensators with different compensating capacities. Round Axial Lens Compensators are manufactured according to OST 34-10-569-93. They dampen the temperature fluctuations of the length of pipelines operating in mildly aggressive environments, with heating up to 300 ° C and conditional pressure up to 1.6 MPa (16 ^kgf/cm2), as well as t ° up to 425 ° C for DN ≤ 400 mm. Non-metallic expansion joints made of special materials can be used in highly corrosive media and athighertemperatures.

Delivery

We supply expansion joints at an attractive price. Technical documentation includes data on the performance qualities of the products. We make it easy to buy any product in bulk for large-scale productions. We also cooperate with retail buyers. The high level of service, compliance with GOST and international quality standards, responsive service is the face of our company.

Buy at the best price

Evek GmbH offers an unlimited range of top quality expansion joints at a competitive price. If you can't choose, our experienced managers are always available to advise you. Having made the order you receive the certified production corresponding to the international standards of quality in the shortest terms. If you value your time, contact our nearest office today, or order online.