Products

Products

Scrubers

For recirculation of chemicals and atmospheric protection "Valmiera-Andren" Ltd. offers its experience in manufacturing of flue gas cleaning equipment – flue gas condensers (scrubbers).

 

Since 1998 we have produced flue gas condensers (scrubbers) of various application and sizes. Among our customers are metallurgy, paper and pulp manufacturing companies, electricity generating companies, meat processing plants, boilers, etc.

 

Waste incineration plants are our dominant customer in the Baltic Sea region.

 

We have manufactured both fixed and freely standing glass reinforced fibre constructions from diameter of 600 mm and height of 3 meters up to diameter of 6 meters and height of 25 meters. Gas, which enters into flue gas condenser (scrubber), is cooled in pre-cooler (quench-tower) even from temperature of +180 grades. By collecting obtained heat and transferring into total heating system, there can be increased power of heating device. And, what is the most important, there is substantial decrease of harmful substances, which flow out into environment.

 

We cooperate with Latvian and Scandinavian leading companies of technologies in designing of such equipment. 

Gas Ducts and Chimneys

Gas ducts of and chimneys of reinforced glass plastic are used everywhere, where is required transportation of gasses with high content of moisture. Composite materials, used by us, are very resistant to condensates.


We have produces ducts of the different diameters and of irregular shapes. They are used for transportation of the various range of gasses, for example, for transportation of HCl vapours, H2SO4 vapours SO2/SO3 in both electricity production and metallurgy industry companies. Gas temperatures can reach +150°C and more.


Application of glass reinforced plastic ensures fast assemblage, long life cycle of product and easy maintenance.

Process equipment

The production of equipment necessary for the provision of chemical processes of SIA Valmiera-Andren occupies a significant part of the company's production.



The unique properties of fiberglass (GRP) resistance to bending, tensile, compressive, chemical, biological and thermal effects, relatively low density and hydroscopy, excellent electrical, thermal and sound insulation, as well as high light transmission and semiconductor capabilities allow effective replacement of traditional materials such as , steel and non - ferrous metals. If we compare the specific strength of materials, the ratio of ultimate stress and specific weight, then glass plastics are 2.5 - 7.5 times stronger than steel. In addition, fiberglass compared to metals is more resistant to shocks, absorbs sound and vibration, is more resistant to aggressive environments.


We use fiberglass in the production of various chemical process equipment, for example - reactors where various chemical substances are mixed, etc.

By insulating the tanks and inserting the heating elements, the temperature regime can be maintained both during heating and cooling.

We produce various chemical pressure tanks and vacuum tanks. A novelty is the "settler" of ore beneficiation plants.

Vertical tanks

 In production unit of Ltd. “Valmiera-Andren" are manufactured vertical liquid storage tanks of glass reinforced plastic (GRP) in various diameter and volume from 1m3 - 800m3, which mainly are intended for storage of chemicals with temperature range from -40°C up to +120°C. Diameter of reservoirs, manufactured in our plant, is up to 8 meters in diameter. 

  • The main application types of reservoirs

    • Storage of chemicals
    • Storage of various types of water (drinking, fire fighting, rain, sewage)
    • Storage of food products
    • Storage of petroleum products (except petrol) 

  • Advantages of glass reinforced plastic (GRP) material

    • Excellent chemical resistance towards various aggressive substances, where other materials are non-persistent. 
    • High ratio of mechanic strength – weight. 
    • Small coefficient of thermal expansion. Long service life – excellent resistance to material aging and impact of atmospheric effects. 
    • Monolithic bulky constructions. 
    • Is not required often maintenance.  

  • Constructions

    • Lower ends - flat, elliptical, conical
    • Upper ends - flat, elliptical, conical.
    • Cylindrical parts are manufactured with winding method, but attachments and connections – with contact forming method.
    • It is possible insulation of product with polyurethane foam plates, to which glass reinforced plastic is glued.
    • It is possible to provide electrical, water or steam systems for maintenance of constant temperature. 

  • Information, required for performance of product strength calculation and product cost calculation

    • Size of product, m3.
    • Desirable diameter or height of product.
    • Substance, intended for storage.
    • Location of product (in premises, external environment).
    • Actual size of working overpressure.
    • Actual size of working vacuum.
    • Actual temperature of working environment, °C.
    • Need for insulation.
    • Requirement of stairs, rails.
    • Painting requirements (colour). 

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Horizontal tanks

In production unit of Ltd. “Valmiera-Andren" are manufactured horizontal liquid storage tanks of glass reinforced plastic (GRP) in various diameter and volume (1m3 - 200m3), which mainly are intended for storage of chemicals with temperature range from -40°C up to +120°C. Horizontal reservoirs due to its small height mainly are selected for placement in premises.

  • The main application types of reservoirs

    • Storage of chemicals.
    • Storage of various types of water (drinking, fire fighting, rain, sewage)
    • Storage of food products
    • Storage of petroleum products (except petrol). 

  • Advantages of glass reinforced plastic (GRP) material

    • Excellent chemical resistance towards various aggressive substances, where other materials are non-persistent.
    • High ratio of mechanic strength – weight (2.5 – 7.5 times stronger than steel). 
    • Small coefficient of thermal expansion.
    • Long service life – excellent resistance to material aging and impact of atmospheric effects.
    • Monolithic bulky constructions.
    • Is not required often maintenance. 

  • Constructions

    • Ends of reservoir - elliptic.
    • Supports – placed longitudinally or perpendicularly, of glass reonforced plastic, wood or concrete.
    • Cylindrical parts are manufactured with winding method, but attachments and connections – with contact forming method.
    • It is possible insulation of product with polyurethane foam plates, to which glass reinforced plastic is glued.
    • It is possible to provide electrical, water or steam systems for maintenance of constant temperature. 

  • Information, required for performance of product strength calculation and product cost calculation

    • Size of product, m3.
    • Desirable diameter or height of product.
    • Substance, intended for storage.
    • Location of product (in premises, external environment, in the earth).
    • Actual size of working overpressure.
    • Actual size of working vacuum.
    • Actual temperature of working environment, °C.
    • Need for insulation.
    • Requirement of stairs, rails.
    • Painting requirements (colour).

Pipe Systems

We manufacture pipes of various sizes and durability depending on target application.

Underground reservoirs for storage of liquids and waste waters, septic tanks


Septic tank of glass reinforced plastic is tank, which consists of three chambers for municipal wastewater treatment. Treatment type is anaerobic (without air). In the first chamber the wastewater is settled and there are forming solid sediments. In the second and third chamber wastewater treatment is performed by help of microorganisms. Wastewaters, which come out of septic tank, are cleaned up to 60-70%, thereby it is required to transfer this water in drainage well or infiltration field, where final treatment of waste waters takes place.


In places, where better waste water treatment is required, we offer biologic treatment plants, where waste waters are cleaned up to 96-98%, and can be transferred in nearby water drainage systems. Please see more detailed information on waste water treatment here.

We manufacture fire water tanks of various sizes and volumes. Tanks for pumping stations.


Tanks are manufactured according to individual order, thereby we can adapt to requirements of particular customer.

We invite for cooperation architects and other interested people for implementation of new ideas to be able to use unique features of composite materials more completely.

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