The name “INTERNORMEN” represents high class technical workmanship, entrepreneurial continuity and innovative strength in hydraulics and lubrication since more than 40 years.
Helmut Franger founded the Internormen-Filter Corporation in Mannheim, Germany in 1972.
Objectives were the production and distribution of filters for hydraulic and lubricating fluids, which would live up to highest quality requirements and set standards in the international market.
Today, the manufacturer of hydraulic and lubricating fluid has turned into an international corporation, which accompanies their customers into the future as a professional partner in technology.
Production facilities can be found in Germany, the United States, India, Brazil and China. With a global distribution network in more than 87 countries our business activity is increasingly developed. This gives us the chance to go deeper into individual customers’ requirements worldwide and offer the optimal solutions. Currently, INTERNORMENTechnology possesses the key technology beyond the manufacture and distribution of hydraulic and lubrication filters. In order to concentrate and benefit better from the possibilities our products, we divide our business activities into seven divisions.
With more than 4000 different single types including the corresponding filter housings and the special solutions for the different business areas, from mobile hydraulics and steel industry to the Off-shore, INTERNORMEN Technology detects and removes all contaminations in the fluids.
A very important factor of INTERNORMEN Technology’s corporate strategy is our total quality management and customer orientation starting by the development, going through the production to the distribution of our products. The certification according to the ISO 9001:2000 is the result of our high quality standards. All our subsidiaries work according to this standard.
INTERNORMEN Technology’s success is also based on the entrepreneurial responsibility whose major components are vision and competence. With an equal treatment of innovation and quality we will keep on stabilizing our technology and market position. Furthermore, we will extend our internationally technological advance.
A wide range of products, professional personal consulting and direct assistance grant you best solutions and optimizing your processes.
SERIES TEF – TEFB – RF – TRW DRAINAGE FILTERS WITH SUCTION CONNECTION SERIES TRS – TNRS
Application: for installation in a container where the drain hole is located in the tank.
Connection: threaded to G 1 ½, flanged to SAE 5 “or DN 200.
Working pressure: 10 bar Consumption: up to 8000 l / min, TEFB, TRW up to 300 l / min
Filtration material: paper fiber, fiberglass, stainless steel mesh. Design features: compact, built-in drain line, filter. A simple and non-oil-loss way of changing the filter elements.
Filter TEF – has a replaceable body – this eliminates the entry of contaminants in the container at the time of changing the filter element
TEFB filter – no need for separate breather
Filter TRW – drainage filter horizontal position
SERIES TRS – TNRS
Application: Tank mounted return-line filters with suction connection for mobile hydraulic applications with minimum two independent hydraulic circuits.
Port size: up to 3x-20 SAE, SAE 2” 3000 PSI.
Working pressure: 145 PSI
Flow rates: up to 119 GPM
Filtration materials: Paper, interpor fleece or stainless steel wire mesh.
User benefits: Tank-top mounted in-line filters supply clean suction flow and prevent cavitation, custom designs possible.
SERIES MDD – HDD
Application: Can be mounted in suction, pressure or return lines.
Port size: up to -16 SAE, SAE 2” 6000 PSI, AVIT flange 4” 640 PSI
Working pressure: up to 4568 PSI
Flow rates: MDD up to 25 GPM, HDD up to 356 GPM
Filtration materials: Paper, interpor fleece or stainless steel wire mesh.
User benefits: Duplex filters can be maintained without interruption of the operation. The upper part has a three-way-change-over valve which allows to change-over the flow from the dirty filter side to the clean filter side without interruption.
Серия DU – DUV
Применение: Напорный фильтр состоит из двух камер, из которых только одна находится в работе, в то время как в другой можно заменить фильтроэлемент. Монтаж можно 
произвести во всасывающей, напорной или сливной линии.
Соединение: резьбовое до G ѕ, фланцевое до SAE 5“
Рабочее давление: до 32 бар
Расход: DU до 4000 л/мин, DUV до 2000 л/мин
Материал фильтрации: бумажное волокно, стекловолокно, сетка из нержавеющей стали.
Особенности конструкции: Шаровой переключатель между двумя корпусами фильтра позволяет производить переключение с загрязнённого фильтроэлемента на чистую резервную сторону без остановки рабочего процесса.
Серия DSF – DNR
Применение: Напорный фильтр состоит из двух камер, из которых только одна находится в работе, в то время как в другой можно заменить фильтроэлемент. Монтаж можно 
произвести во всасывающей, напорной или сливной линии.
Соединение: фланцевое DIN или SAE до 10“
Рабочее давление: до 25 или 16 бар
Расход: DSF до 10000 л/мин, DUV до 8000 л/мин
Материал фильтрации: бумажное волокно, стекловолокно, сетка из нержавеющей стали.
Особенности конструкции: Шаровой переключатель между двумя корпусами фильтра позволяет производить переключение с загрязнённого фильтроэлемента на чистую резервную сторону без остановки рабочего процесса.
Серия DA – DNA
согласно ASME стандарта
Применение: Напорный фильтр состоит из двух камер, из которых только одна находится в работе, в то время как в другой можно заменить фильтроэлемент. Монтаж можно 
произвести во всасывающей, напорной или сливной линии.
Соединение: фланцевое до DN250 , SAE до 2“ или ANSI 4”
Рабочее давление: 16 или 40 бар
Расход: DА до 1000 л/мин, DNA до 2050 л/мин
Материал фильтрации: бумажное волокно, стекловолокно, сетка из нержавеющей стали.
Особенности конструкции: Шаровой переключатель между двумя корпусами фильтра позволяет производить переключение с загрязнённого фильтроэлемента на чистую резервную сторону без остановки рабочего процесса.
Application: for lateral mounting on hydraulic tanks below oil level, for vertical installation (TS series) or horizontal installation (TSW series). The suction part of the filter is in the tank, the internal valve of the service works prevents leakage of liquid.
Connection: up to SAE 3.5 “, up to G 1.5”
Working pressure: 160 or 315 bar
Consumption: up to 700 l / min
Filtration material: paper fiber, fiberglass, stainless steel mesh
Design features: the filter is accessible from the outside. There is no need for an additional valve.
Application: The filter of the parallel filtration is designed for the side contour – in addition to the main one.
Connection: up to SAE 2.5 ”
Working pressure: 16 bar
Consumption: up to 1000 l / min
Filtration material: paper fiber, fiberglass, stainless steel mesh * the use of a water-absorbing filter element is possible
Features of the design: The increased filtration area (correspondingly mud capacity and resource) in relation to the size of the connection. The filter element can be changed without the use of a tool.
Application: filter for installation in suction and drain lines
Connection: up to G 1.5
Working pressure: 16 bar
Consumption: up to 260 l / min
Filtration material: paper fiber, fiberglass
Design Features: Easy maintenance. Lightweight construction.
Application: A wide range of pollution degree indicators for hydraulic systems and lubrication systems
Construction type: optical, electrical, optoelectronic, electronic, with the following versions – threaded or block, explosion-proof, with manual or automatic reset.
Design features: the inclusion of indicators in automated systems, continuous monitoring of the filter differential pressure and pollution, the optimal use of the resource of filter elements.
Application: The breathing apparatus prevents the penetration of dust and moisture into hydraulic tanks
Connection: up to G 3
Working pressure: 16 bar
Consumption: up to 3500 l / min
Filtration material: NBF- paper fiber, fiberglass EBF – TBF paper – BF-WP paper – paper fiber, fiberglass BFD – fiberglass, silica gel
Design features: protection of hydraulic systems against dust and moisture
The system for filtration and removal of water from the working fluid in large volumes
Oil purification systems IFPM / IMPS from INTERNORMEN are a closed loop and allow you to harvest:
Free, emulsified and dissolved water
Free and dissolved gases
Mechanical impurities up to 1 μm
Consequences of oil contamination with water
Water is one of the most common types of pollution and takes second place, after mechanical pollution, along destructive potential. Oil contamination with water can lead to the following problems and breakages:
Destruction of working fluid
Wear of additives
Reduction of lubricating properties of a liquid
Oxidation of oil
Internal corrosion of the hydraulic system
Increase of electrical conductivity
Principle of operation
The principle of evaporation of water in a vacuum with the presence of an inert gas is one of the most effective methods of water removal. This method combines a high rate of dehydration with efficient use of energy for use in various industries. Unlike the standard process of evaporation of water in a vacuum, where it is only possible to achieve an equilibrium between the water content of the oil and the concentration of steam in the ambient atmosphere at a given temperature, the use of dried air as an inert gas makes it possible to achieve a water level below the oil saturation level for any Operating temperature.
Description of IFPM / IFPS settings
The oil is sucked into the plant from the reservoir by means of a vacuum created by a sensible pump. The oil passes through the heater to raise the temperature, which leads to an increase in the efficiency of water removal. Through a magnetic valve a certain amount of oil enters the vacuum chamber and spreads over a special filler, which increases the free surface of the oil. Under the influence of vacuum, the boiling point of water decreases and water evaporates from the oil. The air flow passes through a filter with silica gel and a choke and flows into the vacuum chamber around its middle. When the air moves from the bottom up, the removed water and gases are connected to this stream and sucked off by a vacuum pump, then pass through a condenser and a purifier and released into the atmosphere.
The technology of IFPM / IFPS installations by INTERNORMEN
Compact IFPM / IFPS installations are designed as fully automatic systems with a programmable controller and the ability to use in confined spaces. The built-in water sensor WSPS 03 with the WFD 01 instrument provides continuous monitoring of the water content of the treated liquid, and the VS1 electronic sensor allows optimum use of the built-in filter. The air filter with silica gel ensures the supply of only cleaned, dry air into the chamber, which increases the efficiency of the system and makes it suitable for use in areas with high humidity.
Factors affecting the effectiveness of IFPM / IFPS installations
The time required to achieve the desired level of water in oil is very much dependent on the type of oil used. The influence of various factors on the process of water removal is given in the table
Application: Pressure filter with flange connection to the mounting surface
Connection: DN 32
Working pressure: 160 or 315 bar
Consumption: HPP – up to 1350 l / min
Filtration material: paper fiber, fiberglass, stainless steel mesh
Design features: installation of a filter with “point” lubrication. The passage of contaminated liquid during the change of the filter element is eliminated.
Application: Pressure filter with flange connection to mounting surface
Connection: up to DN 36
Working pressure: 315 bar
Consumption: HPF – up to 1350 l / min
Filtration material: paper fiber, fiberglass, stainless steel mesh
Design features: installation of a filter with “point” lubrication. The passage of contaminated liquid during the change of the filter element is eliminated.
Application: For installation in a suction, discharge or discharge line.
Connection: threaded to G ѕ, flanged to DIN / ANSI 10 ”
Working pressure: 10, 16, 25 or 32 bar
Consumption: up to 10000 l / min
Filtration material: paper fiber, fiberglass, stainless steel mesh.
Design features: The filter is installed in the pipeline, the inlet and outlet openings are on the same axis. Can function as a suction, pressure or drain filter. The RF filter has a side inlet and an outlet in the lower part.
Application: For installation in a pressure line – with threaded connection.
Connection: Screwed to G 1
Working pressure: up to 160 bar
Consumption: up to 450 l / min
Filtration material: fiberglass, stainless steel mesh
Design features: compact filter for small and medium pressure. A minimum space is required to change the filter element.
Application: For installation in a pressure line – with threaded connection.
Connection: threaded up to G 1.5
Working pressure: up to 420 bar
Consumption: up to 450 l / min
Filtration material: paper fiber, fiberglass, stainless steel mesh
Design features: Pressure filter for installation in pipelines.
Application: For installation in a pressure line – with flange connection.
Connection: flanged to SAE 1.5 ”
Working pressure: up to 420 bar
Consumption: up to 1350 l / min
Filtration material: paper fiber, fiberglass, stainless steel mesh
Design features: Pressure filter for installation in pipelines. The maximum flow is possible.
Application: Pressure filter with replaceable flow direction
Connection: threaded up to G 1.5 flanged to DN 50
Working pressure: up to 315 bar
Consumption: up to 400 l / min
Filtration material: paper fiber, fiberglass, stainless steel mesh
Design features: The pressure filter of this series is designed for the case of exchangeable flow directions. Filtering is performed in both cases.
Application: Pressure filter with cold start valve
Connection: HPV – threaded to G 1.5, MDV – threaded to G 3/4
Working pressure: HPV – up to 420 bar, MDV – up to 200 bar
Consumption: HPV – up to 450 l / min, MDV – up to 150 l / min
Filtration material: paper fiber, fiberglass, stainless steel mesh
Structural features: Stable filtration is ensured. To avoid equipment failure, the contaminated filter element must be replaced immediately. Forced discharge of liquid into the intermediate tank by means of the third connection.
CCS 2 + BSS 2 / solid contaminant counter and oil supply device from bottle samples
On-Line definition of cleanliness classes according to ISO 4406: 1999, ISO 4406: 1987 and NAS 1638
Diagnosis of the hydraulic system
Checking the effectiveness of filtration and compliance with the standards for each of the components of the hydraulic system
Allows the analysis of oil during the operation of equipment
Increased ease of maintenance
Diagnosis of system components – pumps, bearings, seals, gearboxes
Justification of the need for spectral analysis
Determination of the effectiveness of the application of parallel filtration
Determination of the optimal replacement time of filter elements
Determination of the liquid state during commissioning of the equipment
Assessment of the impact of changing environmental conditions on the level of pollution in the hydraulic system
Observation of the running-in time of new units
Analysis of the efficiency of air filters
Conducting a study of the taken bottle samples with laboratory accuracy of the tests (in the case of presence of air in the system or low operating pressure)
Analysis of the achieved purity classes
BSS 2 – device for feeding oil from bottled samples
Serves for preparation and submission of samples from bottles to the CCS 2 device
Used to remove air bubbles from samples to improve the accuracy of particle counting in CCS 2
Allows calibration of the CCS 2 with software from INTERNORMEN CALSOFT 01 and test liquid from INTERNORMEN CALSUS 01
Pump system for optimal extraction of bottle samples from tanks
Serves to feed oil samples from the tank to CCS 2
Serves to determine the water content of the oil
Detects condensation of water in the tank
Detects the leakiness of the cooling system
Sets the moisture saturation of the filter-absorbers of the ventilation system
Serves to test the efficiency of water-absorbing devices
Detects damaged cylinder seals
PAS01 – kit for taking and analyzing oil samplesMinilaboratoriya for the input control of hydraulic and lubricating fluids
Contains Mini-Mess connections for simple sample removal
Allows to carry out the control of a condition of a liquid directly on a workplace
Allows you to determine the type of pollution
Designed for visual inspection of liquids and their contamination
Contains equipment for static and dynamic sampling
Designed for taking bottled samples
Allows the analysis of particles through a membrane sample
It is intended for counting particles by means of a sample membrane and a microscope
Allows gravimetric analysis of mechanical contamination
UM / US-m mobile and fixed installations of parallel filtrationImprove the cleanliness of hydraulic and lubrication systems
Increase the life of system components
Reduce downtime of equipment
Used for optimum filling and flushing of the hydraulic system
Used for flushing the system after repair
Extend the resource built into the system of filters and filter elements
Extend the time of oil exploitation and, consequently, the intervals of its replacement
Significant increase in filtering fineness
Slow down the aging of the oil
USP- Parallel filter units with integrated heat exchangerServes for filtration and cooling of liquid
Extend the operating time of the oil
Increase the lubricity of working fluids
It serves to absorb free, emulsified and partially dissolved water from the oil
Additionally removes mechanical impurities
Slows down the aging of the oil and reduces the consumption of additives and additives in the liquid
IFPM / IFPS-C System for removing water from hydraulic fluidsRemove free, emulsified and dissolved water from working fluids
Remove free and dissolved gases from working fluids
Remove mechanical impurities up to 1 μm
Increase the life of the working fluid, the elements of the system and slow down the aging of the oil
Increase the reliability and productivity of the system
Reduce the time of equipment failure
Determines the degree of saturation of the liquid with water (in percent)
Allows you to determine the level of saturation with moisture and water, even before switching to an emulsified or free state
Prevents corrosion and loss of dielectric properties of transformer oils, preserves additives, reduces the thickness of the lubricating layer
Lowers the influence of high humidity of the environment
Removes particles of pollution and atmospheric humidity from the air before it enters the tank
Increases the service life of the working fluid
Reduce the simple system, the cost of repairing or replacing system components
