to success
since 1997

Distributor / authorized representative that deals with supply & delivery of discontinuous filters to industrial enterprises of Russia

Engineering company ‘Intech GmbH’ LLC (ООО «Интех ГмбХ»), Russia, has been successfully working with a number of Russian industrial enterprises at the local market for more than 20 years. Since the company’s founding, it has acquired immense engineering experience, market reputation, and has realized more than a hundred large-scale projects at the industrial plants in Russia. Our company is continuously in search of new business partners, who consider Russian market investment-attractive and want to boost their sales in the region, as well as expand their field of activities and enter a new international level.

We are interested in cooperation with the manufacturers of discontinuous filters, who are looking for an official and reliable distributor to deal with supply & delivery of their equipment to the industrial plants in Russia.

The company’s top management and sales team are well acquainted with the Russian market, its mentality and laws; they also understand industrial specifics of the financial and economic activities of the Russian customers. All our sales managers have a large customer database, extensive experience of successful sales and well-established connections with the potential buyers of your discontinuous filters. This allows our managers to promptly set out the most promising directions for promotion and to ensure a rapid entry of the products into the promising Russian market. Our employees, who are fluent in English and German, are focused on working at the international market with the supplies of foreign equipment.

Our team of experienced engineers, who can handle the most serious technical problems, constantly keeps in touch with the Russian customers, holds meetings and delivers presentations regarding the latest achievements of our manufacturing partners. They point out the engineering challenges and actively communicate with all the departments at Russian plants. That is why the specifics of doing a business in the Russian Federation are well-known to us, and we also know the equipment of the local industrial plants and their up-to-date modernization needs.

Once we become your authorized representative in Russia, our marketing staff will carry out a market research in order to check the demand for discontinuous filters, will submit a market overview for discontinuous filters that you offer and evaluate the needs for this type of equipment at local plants. Our specialists will also estimate the potential and capacity of this market at local industrial plants. Our IT-team will start developing a website for your products in Russian. Our experts will assess the conformity between your discontinuous filters and customer needs as well as analyze the common reaction to the new goods in general. We will look into the categories of potential customers, and pick out the largest and the most promising plants.

Upon becoming your authorized agent on the territory of Russia, ‘Intech GmbH’ LLC (ООО «Интех ГмбХ»), will obtain certificates, if required, for a batch of the goods, for various types of discontinuous filters in compliance with Russian standards. We can also arrange the inspection in order to obtain TR TS 010 and TR TS 012 Certificates. These certificates provides permission to operate your equipment at all industrial plants of the EAEU countries (Russia, Kazakhstan, Belarus, Armenia, Kyrgyzstan), including the hazardous industrial facilities. Our company is eager to assist in issuing Technical Passports for discontinuous filters as per Russian and other EAEU countries’ requirements.

Our engineering company ‘Intech GmbH’ LLC (ООО «Интех ГмбХ»), collaborates with several Russian design institutes in various industrial segments, which allows us to conduct preliminary design as well as subsequent design works according to the standards, construction rules and regulations that are applicable in Russia and other CIS countries. It also enables us to include your discontinuous filters into the future projects.

The Company has its own logistics department that can provide packing service, handling as well as the most efficient and cost effective mode of transportation of the goods (incl. over dimensional and overweight goods). The goods can be delivered on DAP or DDP-customer’s warehouse basis in full compliance with all the relevant regulations and requirements that are applicable on the Russian market.

Our company has its own certified specialists who will carry out installation supervision and commissioning of the delivered equipment, as well as further guarantee and post-guarantee maintenance of discontinuous filters. They will also provide necessary training and guidance for the customer’s personnel.

Discontinuous filters. A brief overwiew

Types of filter designs

Discontinuous and continuous filters are distinguished depending on the nature of the working process.

Discontinuous filters have a similar design of filter elements. However, continuity parameter (for example, filter disc rotation) is excluded from their operation.

Classification of discontinuous filters

Filters, classified by type of pressure, creating the dynamic pressure, necessary to push the liquid through the filter membrane, include:

  1. Filter presses. Filters of this type are operated by a pressure, created by vacuum pumps.
  2. Filters, operated by the hydrostatic pressure of the head of liquid, subject to be filtered.
  3. Vacuum filters. Such filters operate, using vacuum, generated by vacuum pump.

Filters are also distinguished by the type of filter membrane. According to this characteristic, all filters are divided into main groups:

  1. Filters, having a fabric membrane.
  2. Filters with a fixed rigid baffle.
  3. Filters, equipped with granular or unbound membrane.

When choosing a filter membrane, the following factors are taken into account:

  1. Chemical properties of liquid, subject to be filtered.
  2. Degree of fragmentation of solid particles, present in the mixture, subject to be filtered.
  3. Operating pressure.
  4. Required filter performance.

When heavy fractions concentration in the initial suspension is in the range of 5-30% and size of suspended particles is 5-40 µm, discontinuous centrifuges are used for its separation. They can operate in two modes: aiming at a predetermined period of time or at a predetermined thickness of cake. In the one case centrate is discharged through the discharge tube by the pump, and the residue is cut off by a hydraulically driven knife. In the other case the suspension enters the centrifuge continuously, and centrate is first discharged overboard until a predetermined layer of cake is formed. Thereafter the discharge of the contents is produced similarly to that in the first mode.

Tubular-bowl high-speed centrifuges with vertical bowl, where the length to diameter ratio is expressed by the proportion 7:5, are used for suspensions with a particularly low concentration (content of suspended particles is less than 1%) and in the case of a particle size of 0.5-1.5 mm. 3 to 4 ribs, located longitudinally, are provided inside the body to maintain the speed of suspension movement at the level of rotational speed of centrifuge body. "F" value in such centrifuges reaches 17.000 to 30.000 for industrial and laboratory equipment.

Tubular-bowl high-speed centrifuges can also be used in the case of large value of "factor of centrifugal separation" to separate trice emulsions in continuous mode. Separation into light and heavy fractions occurs through inner removable ring, diameter of which corresponds to the parameters of fractions density. Due to the high rotational speed, laboratory high-speed centrifuges have small dimensions (diameter of up to 150 mm, length of up to 1 m and a drum capacity of up to 10 l).

Nutsche filter is the simplest discontinuous unit. Typically it is used in low-power industries. It is a vertical cylindrical vessel divided internally by a horizontal membrane into two unequal tanks. Suspension is supplied into the upper part; the filtrate is collected in the bottom part. The pressure difference is caused by vacuum in the bottom part or by pressure increase in the upper part.

After completion of filtration the membrane is washed and residue is discharged. The bottom tank of the filter together with a membrane is made hinged or side hatches are mounted in the device body for this purpose.

Nutsche filter is a simple discontinuous filter, working under excessive pressure or vacuum. The filtrate movement and direction of gravity coincide in such filters.

Principle of operation

Nutsche filter is a tank, having a double bottom. At that, upper false bottom is used to hold the filter material layer. Residue is retained on the filter membrane, and filtrate is discharged through the outlet under the influence of vacuum, created by means of a vacuum pump. After that filtrate is discharged into the receiving tank. From this tank the liquid, subject to be filtered, is pumped by a pump or transferred by compressed air for further treatment or to another filtration cycle if the degree of purification was insufficient.

Diagram of filtration process by Nutsche filter:

It is necessary to filter liquids, evolving flammable or noxious vapors, under the pressure of inert gas or compressed air by means of a pressure-type Nutsche filters.

If the residue is subjected to further treatment in a liquid medium, Nutsche filter can be provided with agitators. This can greatly facilitate discharging. During the filtration process agitators are raised above the mass, subjected to be filtered. When the filtration process is over, they are put into it, after adding a small amount of washing liquid into the residue. In this case agitators must be lowered gradually to cut thin layers of residue and mix it with a washing liquid. After that an agitated residue is pumped down or discharged through a pipeline.

Pressure-type Nutsche filter

Filtration process in the pressure-type Nutsche filter occurs under the compressed air or inert gas pressure. The residue is discharged through a side hatch or hinged bottom.

Gravity Nutsche filter

The advantages of such devices include: high filtration speed, the ability to separate hard-separable residues, as well as suspensions, evolving flammable or noxious vapors.


Upon becoming the official distributer of fabric filters, our company ‘Intech GmbH’ LLC (ООО «Интех ГмбХ»), carries out the following: finds the buyers of your products on the market, conducts technical and commercial negotiations with the customers regarding the supplies of your equipment, concludes contracts. Should a bidding take place, we will collect and prepare all the documents required for the participation, conclude all the necessary contracts for the supply of your equipment, as well as register the goods (fabric filters) and conduct customs clearance procedures. We will also register a certificate of transaction (Passport of Deal) required for all foreign trade contracts in the foreign currency control department of the authorized Russian bank so that currency transaction could be effected. If required, our company will implement an equipment spacing project in order to integrate your equipment into the existing or newly built production plant.

We are convinced that our company ‘Intech GmbH’ LLC (ООО «Интех ГмбХ»), will become your reliable, qualified and efficient partner & distributor in Russia.

We are always open for cooperation, so let’s move forward together!