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  • Offer Profile
  • EnvironTec is a skilled, innovative company from Austria.

    Our many years of experience have led to our specialisation in the development, production and marketing of gas-technology components for a wide variety of fermentation gas applications in the bio, sewage and landfill gas area.

    Our product portfolio ranges from fermentation gas reactor equipment to all gas purification and gas storage components right through to gas utilisation in flare systems. We are also happy to conduct the planning, conception and delivery of complete gas conduits and systems as well as their maintenance and inspection on behalf of the customer.

Product Portfolio
  • EnvironTec - a Global Player from Österreich

    • High-performance products "Made in Austria" for worldwide use in the field of environmental technology

      Our company EnvironTec, based in Fußach in Vorarlberg/Austria, specialises in the development and production of gas components for a wide range of digester gas applications. Based on our innovative strength and many years of experience, we offer our international customers sophisticated solutions in the following areas:

      International export of Austrian know-how 

      Worldwide - that means from Asia with Indonesia and China over whole Europe up to America we could already equip numerous customers in the past with the following components from the range of the biogas purification, biogas preparation, biogas storage and biogas utilization:

      • Digestion equipment: roof manhole RMH, double tube heat exchanger, gas dome GD, ball spray nozzle SU, sight glass IG, foam trap FT as well as lateral manhole LMH
      • Gas treatment: activated carbon filter ACF, biological gas cleaning, gas refrigeration dryer GC, ceramic fine filter FF, gravel filter GF, condensate collector CA, condensate pot CP as well as sediment pot ST
      • Gas storage: Gas storage models TG or TGZ as well as : Double diaphragm storage tank
      • Gas utilisation: biogas and sewage gas flare FA II, manual gas flare FA I and radial fan RV
        • Digester equipment

          • In the past, we have successfully completed numerous such projects worldwide, which is why our company has many years of in-depth experience in the field of environmental technology with regard to digestion tower equipment. As a result, we are able to provide our international customers with tailor-made services, which are adapted by our well-trained experts exactly to the respective requirements. 

            Thanks to this variability, we are able to provide our international customers with high-quality elements in every respect with regard to the appropriate digestion tower equipment, which, if required, present themselves from their flexible side in order to be able to actually meet the respective requirements. 

            EnvironTec can supply you with the following products from the field of digestion tower equipment:

            • Roof manhole RMH
            • Double tube heat exchanger WT
            • Gas dome GD
            • Ball spray nozzle SU
            • Sight glass IG
            • Foam trap FT and
            • Lateral manhole LMH

            This enables EnvironTec to ensure that for every possible order that we take on internationally in the most diverse countries, high-quality, professional and equally effective and efficient solutions are delivered with regard to digestion towers. The choice of materials used for the production of our digestion equipment is also based on our priority to meet the highest quality standards.

              • ROOF MANHOLE RMH

              • A sufficiently large and easy to open/close aperture is required for carrying out repair and inspection work as well as for moving bulky equipment into and out of fermentation containers. The EnvironTec RMH roof manhole provides a robust and cost-effective manhole design for this purpose. The roof manhole is available in four different standard diameters – also in custom sizes to customer specifications. Usually, 1.4571 stainless steel is used as material for roof manholes and NBR round cord as gasket.

                • Access aperture in concrete containers for inspections and maintenance work
                • Available in different diameters
                • Frame height to customer specification
                • Incl. sealing collar for moulding into concrete ceilings
                • Incl. cover (not shown)
                • Entirely made from 1.4571 stainless steel
                • Made in Austria

                APPLICATIONS AND SPECIFICATIONS
                • Access and inspection aperture for anaerobic fermentation vessels
                • Entirely made from 1.4571 stainless steel
                • NBR cover gasket
              • HYDRAULIC SAFETY VALVE CHV

              • The EnvironTec Hydraulic Safety Valve provides a safe and reliable protection against both, overpressure and vacuum. It consists of a round tank, which is divided into two sections by a separating wall. One section is connected to the gas tank or the gas pipe, the other one to the open air. An open space, which allows liquid and gas to pass from one section into the other one, is provided at the bottom of the separating wall. A liquid that normally closes the space is filled into the hydraulic valve. The pressures, when the valve is activated are adjusted by the height of the liquid level and by the ratios of the bottom areas of the two sections. On overpressure conditions, the liquid level at the gas side will be depressed until the gas can pass into the other section and can escape into the open air from there. On vacuum conditions, the liquid level at the air side will be depressed until the air can pass under the separating wall into the gas section and thus break any impermissible vacuum. The required liquid level inside the valve is adjusted by an overflow siphon, which drains any excess and a level indication, which gives alarm in case of lack of liquid.

                • Save protection against overpressure and vacuum
                • Two installation types available:
                  • Type 1 for installation onto a top manhole of a tank
                  • Type 2 for installation in an open area or into a pit
                • Optional inline installation
                • Optional local / remote level indication
                • Gas contacted parts entirely made of ss 316Ti
                • Made in Austria
              • GAS DOME GD

              • Gas domes/gas hoods serve two purposes: firstly, they accommodate a wide variety of equipment at the head of the fermentation tower such as safety equipment, foam traps, inspection/viewing windows, gas take-off fittings, etc. and, secondly, they provide a sufficiently large aperture for charging and removing material as well as for accessing the interior. The EnvironTec gas dome or gas hood is designed and manufactured to each specific customer requirement and can be supplied in a wide variety of configurations. Diameter and wall height are individually adjustable.

                APPLICATIONS AND SPECIFICATIONS
                • Access and inspection aperture for anaerobic fermentation vessels
                • Support platform for a wide variety of equipment at the head of the fermentation tower
                • Support of agitators possible
                • Variable diameter and wall height
                • Supplied for welded connection or with sealing collar for moulding in at the head of the fermentation tower
              • INSPECTION GLASS IG

              • Inspection glasses/observation windows are used for the easy and unobstructed observation of the processes inside fermentation vessels (e.g., formation of floating layers). The EnvironTec inspection glass system can be integrated into a manhole cover or gas dome or be installed in the reactor roof or external wall using a special insert. EnvironTec inspection glasses are available in different sizes. Window wipers, spray mechanisms, inspection glass luminaires (also ex-protected) and protective covers are available as optional accessories.

                APPLICATIONS AND SPECIFICATIONS
                • Observation systems for fermentation gas plants
                • For installation in gas domes, manhole covers or with a special insert
                • Suitable for reactor roof and external wall
              • LATERAL MANHOLE LMH

              • During the construction phase of fermentation gas containers, but also during operation and for structural work, the safe and easy access to the interior of the vessel must be ensured. Therefore, the lateral access and egress of people but also the supply and removal of materials and tools must be facilitated. The EnvironTec LMH lateral manhole ensures the easy and quick opening / closing of the manhole cover by means of a spindleoperated locking mechanism and, as it is designed to open towards the interior, the fluid pressure provides an additional seal. Its convex interior surface prevents slurry particles or other solid matter from being deposited on it. EnvironTec lateral LMH manholes are available with clear diameters of 600 mm - 1200 mm. The frame width is individually adjustable.

                • Easy to open/close with spindle-operated locking mechanism
                • Pressure range up to approx. 4 bar
                • Operating range up to 100°C
                • Perfect seal through the static pressure applied by the medium
                • Hinged lid does not need to be removed
                • Entirely made from 1.4571 stainless steel
                • Made in Austria
                APPLICATIONS AND SPECIFICATIONS
                • Lateral ingress/egress in storage containers, pits, towers and concrete structures
                • For material supply or the deployment of divers we recommend diameters >800 mm
                • Support of agitators possible
                • Variable diameter and wall height
                • Supplied for welded connection or with sealing collar for moulding in at the head of the fermentation tower
              • FOAM TRAP FT

              • During the operation of fermentation vessels it is possible for foam to form (e.g. during mixing processes inside the reactor, charging of pressurised gas, disadvantageous composition of the sewage slurry, temperature effects, etc.). The modern EnvironTec foam trap facilitates the timely detection of the build-up of foam and the effective prevention of this foam entering the gas take-off system.

                The interior of the foam trap is continually monitored by a photo-optical system. When the foam formed inside the gas chamber rises to the monitored section, this is immediately detected and the cleaning nozzles are automatically activated.

                The foam in the foam trap is kept down by a spray veil preventing it from entering into the gas pipeline system. The suppressed foam falls directly back into the reactor chamber. The foam trap is available in different specifications (basic specification, semi and fully automatic as well as incl. signal output to a control system).

                • Detection and suppression of foam formation inside the gas take-off dome
                • Prevents foam ingress into the gas system
                • Foam return to the reactor chamber
                • Integrated cleaning nozzles
                • Optional fully automated equipment
                • ATEX-compliant sensors
                • Entirely made from 1.4404 or equivalent stainless steel
                • Connection option for positive/negative pressure
                APPLICATIONS AND SPECIFICATIONS
                • Gas purification by removal of solid particles and condensate vapours
                • Optionally available with differential pressure gauging, water level indication and condensate drainage
              • LATERAL MANHOLE LMH II

              • During the construction phase of fermentation gas containers, but also during operation and for structural work, the safe and easy acces to the interior of the vessel must be ensured. Therefore, the lateral acces and egress of people but also the supply and removal of materials and tools must be facilitated.

                The EnvironTEC LMH II lateral manhole ensures the easy and quick opening/closing od the manhole cover by a handle bar.

                Its convex interior surface prevents slurry particles or other solid matter from being deposited on it.

                APPLICATIONS AND SPECIFICATIONS
                • Lateral ingress/egress in storage containers, pits, towers and concrete structures
                • For material supply or the deployment of divers we recommend diameters >800mm
                • Entirely made from 1.4571 steel
                • Hydrostatic pressure up to approx. 4 bar
              • SPRAYING UNIT SU

              • During the operation of fermentation vessels sludge islands floating on the surface of the sewage sludge or floating layers can form.

                The EnvironTec spraying unit allows the buildup of floating layers to be attacked with the aim of driving the floating fragments towards the discharge mechanism without having to open the container. Due to the ball joint design, the water jet of the spray nozzle can be freely rotated and tilted. Because the work can be simultaneously monitored through the EnvironTec inspection glass, there is no need to open the reactor’s gas chamber.

                In addition, the spraying unit can also be used to attack the formation of foam and scum. All metal parts are made from stainless steel and the ball joint from durable plastic material.

                • For attacking floating layers in fermentation vessels and foam formation without opening the gas container
                • Free rotary and tilting action
                • Extendable to customer specification
                • Including ball valve
                • Suitable for welding into manhole covers or with extra frame
                • Entirely made from 1.4571 stainless steel, plastic ball joint
                • Made in Austria
                APPLICATIONS AND SPECIFICATIONS
                • For attacking floating sludge and foam in fermentation gas containers
                • Metal parts made from stainless steel, ball joint from durable plastic material
              • HEAT EXCHANGER WT

              • Our double tube heat exchanger are used for heat exchange at biogas- and sewage treatment plants. Using the energy efficient counter-flow principle, the medium is heated and flows back to the process. The WT is always individually designed and carried out for every costumer, this guarantees a cost-effective execution. Our WT is made of stainless steel and available with or without insulation

                Advantages of WT
                • Custom design and construction
                • Functional stability
                • Low risk of clogging
                • Low pressure drop
                • High transfer due to high transmission areas
                • Individually designed brackets and frames for the location
              • Innovative Pasteurization Plant

              • The novel, award-winning pasteurization plant is designed for being easily integrated into a treatment plant. It is delivered readily mounted by truck. Only the substrate in- and outputs have to be connected to the existing plant, the heating and power connections have to be established – and the plant is ready for being set into operation.

                The process: Continual pasteurization respectively disinfection (control of epidemics) primarily of food waste and other material of similar structure for treatment in biogas plants or sewage sludge treatment plants.

                • Optimizing the process design
                • Efficient disinfection
                • Continual energy consumption resulting in a uniform load of the CHP
                • Robust operation with low servicing requirements (no agitators installed)
                • Reasonable costs of installation and operation
                • Little space and area requirements
                • Compliance with the related standards and laws is documented
                Process protected by patents

                Guarantied and documented retention time according to EU directive n° 142/2011 of: 1 hour at a temperature above 70 °C for disinfection / pasteurization

                Technical data: Thermal energy consumption max. 220 kW Electric power consumption 4 kW Production capacity 40.000 t/year

                The continual energy consumption results in easy scheduling the thermal energy More than 50% cost savings can be achieved compared to conventional systems.

            • GAS PROCESSING

              • Modern gas treatment with innovative solutions "Made in Austria"

                Worldwide, professional and appropriate gas treatment is not only an important task in the field of environmental technology, it is also characterized by numerous challenges that have to be overcome with suitable components. For this purpose, our company provides a wide range of products that have already proven themselves many times over internationally.

                  • ACTIVATED CARBON FILTER ACF

                  • Biogas contains high levels of contaminants like H2S, siloxanes, organic compounds and particles, which can create irreversible damage to the engine.

                    The EnvironTec’s Activated Carbon Filter can costeffectively remove those contaminants, leading to lower operational costs and longer lifespan of engines and plant’s components.

                    The EnvironTec filter’s unique 3-legged design and the special disposition on the gas inlet pipe inside the filter, results on an even gas distribution inside the chamber, leading to a higher adsorption efficiency, thereby a lower consumption of activated carbon and ultimately to a significant reduction of the operating costs As an option, insulation and carbon first filling can be provided on request. EnvironTec’s Activated Carbon is available for H2S and siloxane removal, reaching higher loading ratios that the average product available in the market, thus extending the load’s service life

                    • Supported on three legs, allowing an easy removal of carbon through the bottom
                    • Multi-chamber system using carbon more efficiently and thus saving in operational costs
                    • Made of stainless steel 1.4404
                    • Including measuring ports with couplings to monitor the load
                    • Insulation, carbon filling, air dosing and gas pre-heating optional
                    • Made in Austria
                  • BIOLOGICAL DESULPHURISATION SYSTEM BDS

                  • Biogas and landfill gas always contains hydrogen sulphide (H2S). Usually, this is in the range of 1,000 to 6,000 ppm but may also reach 2% Vol or more. This H2S frequently needs to be removed from the gas – either for reasons of environmental protection or because of the corrosion hazard. The EnvironTec desulphurisation process offers a cost-effective yet highly efficient solution for this task. At the core is a biological process requiring no chemicals and almost no consumables. When a limited amount of air (app. 10 - 15% in relation to the gas throughput) is added, special bacteria (e.g. Thiobacillus) convert the H2S to elementary sulphur and sulphuric acid.

                    These bacteria only need:

                    • Oxygen
                    • Nutrients and trace elements ( NPK886)
                    • Growing surfaces

                    Oxygen is added in the form of pressurised air. The automatic controller adjusts the amount of air to the current demand in correlation with the amount of gas. Synthetic fertiliser (NPK886), which is available in all countries around the world, is used to supply nutrients and trace elements. The system is built to VDI directive 3478 and the currently applicable ATEX regulations.

                    APPLICATION AREAS
                    • Communal or industrial sewage treatment plants
                    • Chemical industry
                    • Paper industry
                    • Landfill sites
                    • Food industry
                    • Agriculture
                  • CERAMIC FINE FILTER FF

                  • Fine filters are used for the fine purification of sewage gas/biogas. This allows the separation of fine particles ≥8 µm as well as condensate vapour resulting in the availability of gas for further use that is free of foreign matter to the greatest possible extent.

                    EnvironTec fine filters are fitted with filter candles made from Pantel (special fire clay). As the gas flows through the filter candles from the outside to the inside foreign matter is separated out on the outer wall. The filter material used is chemically resistant/neutral, has a high filtration performance coupled with a low pressure loss and is easy to clean with pressure washers.

                    Any condensate build-up can be drained via an optional siphon or condensate separator. If required, the fine filters can also be fitted with differential pressure gauging (U-tube or individual pressure gauges). EnvironTec fine filters are entirely made from 1.4404 stainless steel

                    APPLICATIONS AND SPECIFICATIONS
                    • Gas purification by removal of solid particles and condensate vapours
                    • Filtration rating: ≥8 µm
                    • Optionally available with differential pressure gauging, water level indication and condensate drainage
                  • GRAVEL FILTER GF

                  • Biogas from fermentation vessels or biogas reactors is saturated with water and partially loaded with dirt particles. In addition, foam may enter the pipeline system.

                    The EnvironTec GF gravel filter ensures the simple coarse cleansing of the biogas. The gas flows through a gravel filter layer during which process dirt, foam and condensate droplets are separated out. In the case of normal debris levels, the gravel can be cleaned by water injection via the cleaning nozzles or by flushing without the need to open the filter.

                    EnvironTec offers gravel filters for different flow volumes and pressures. The gravel filter can optionally be fitted with a gravel removal flange as well as differential pressure gauging. EnvironTec gravel filters are entirely made from 1.4404 stainless steel.

                    • Removal of coarse particles and foam from biogas/sewage gas
                    • Condensate separation
                    • Flashback protection device
                    • Low maintenance
                    • Optional differential pressure gauging and gravel removal
                    • Entirely made from 1.4404 stainless steel
                    • Made in Austria
                    APPLICATIONS AND SPECIFICATIONS
                    • Gas coarse cleaning of fermentation gas or biogas plants
                    • Made from 1.4404 stainless steel
                    • Optional equipment available
                  • GAS CHILLER GC

                  • Biogas, sewage gas and landfill gas always contain water vapour in an unsaturated state. During combustion, the water vapour results in considerable corrosion damages to the gas engines and turbines. Malfunctions caused by these damages lead to significant downtimes and high repair costs. The use of a gas dehumidification system can considerably extend the engines’ service life and notably reduce the maintenance costs. The condensation of the water vapour in the gas is caused by temperature reduction which in turn results in a dehumidification. The con-densate is separated out in a trap installed after the chiller and removed via a siphon. The de-humidification simultaneously results in an increased efficiency.

                    The EnvironTec gas de-humidification process presents a cost-effective solution in this context. The gas dehumidification modules are available in performance ranges offering gas flow rates from 100 to 6000 Nm³/h. Special designs are also available on request. Additional application examples are configurations in combination with a post-heating stage ahead of active carbon filters and feeding into a gas pipeline to prevent subsequent condensation. For additional energy savings the gas dehumidification can be enhanced with an extension module comprising an air cooler and a tubular heat exchanger.ATEX regulations.

                    APPLICATION AREAS
                    • Communal or industrial sewage treatment plants
                    • Chemical industry
                    • Paper industry
                    • Landfill sites
                    • Food industry
                    • Agriculture
                  • CONDENSATE POT CP

                  • Sewage gas / biogas is gas that is saturated with water vapour. In fermentation gas plants and their pipeline systems there typically is a build-up of condensed water caused by temperature effects. Condensate can lead to blockages at low points and deposits, corrosion, etc. in pipe sections.

                    The EnvironTec condensate separator for low-point water drainage effectively and safely collects and removes condensed water from the pipeline system. Condensate pots are usually installed directly in the pipeline but can also be flanged below low-lying points of the pipeline. The water condensed out accumulates on the container walls or the separation wall and is collected at the bottom of the container.

                    Removal is manual via a ball valve or automatic via a siphon or an automatic condensate separator. An optional fill level indicator or sight glass are also available. The system is available in different sizes and specifications (basic specification, semi and fully automatic). EnvironTec condensate separator pots are entirely made from 1.4404 stainless steel.

                    • Effective removal and collection of condensed water
                    • High storage capacity
                    • Low pressure loss
                    • Optional automatic condensate separator
                    • Optional fill level indicator/sight glass
                    • Easy cleaning
                    • Condensate pot entirely made from 1.4404 stainless steel
                    • Made in Austria
                    APPLICATIONS AND SPECIFICATIONS
                    • Condensate collection/removal in pipeline systems of fermentation gas plants
                    • Body made from stainless steel 1.4404
                    • Condensate drainage manual or via siphon or separator pot
                  • GASDESULPHURISATION

                  • The biogas is brought into intense contact with a circulating alkali liquid over an exchanger in a single stage counter current process (gas scrubber}. The H2S in the gas is absorbed by the alkali liquid through various chemical reactions. Ultimately the H,S in the gas is almost totally converted into NaHS and sodium bicarbonate using sodium hydroxide.

                    The process is controlled by a sophisticated H2S-detection and sampling system for very efficient operations and low chemical consumption. Selective desulphurisation is possible due to the differences in the physical and chemical properties of H2S and CO2.

                    The course of this chemical process is further determined by chemical concentrations, pH values and the temperature and pressure of the system. Caustic consumption savings up to 60% can be achieved in comparison with conventional caustic scrubber-technologies!

                    Why Sulfurex ®?
                    • Reliable and compact unit
                    • High efficiency on H2S
                    • Low caustic consumption
                    • Easy implementation of gas drying and conditioning
                • GAS STORAGE

                  • High-quality biogas storage facilities from the global player EnvironTec

                    As an international player in the field of environmental technology with worldwide export activities, for example to Turkey, Sweden or South America, our company has various gas storage variants in its range, for example biogas storage facilities, in order to be able to supply a tailor-made solution for every order.

                      • DOUBLE MEMBRANE GASHOLDER DM

                        • The outer membrane forms the actual protective construction and is always exposed to a positive pressure required for structural integrity. The processes inside the storage container can always be monitored through an inspection glass built into the outer membrane. The actual useable storage space is formed by the inner membrane. This membrane moves up or down depending on the fill level. In a gas storage container with a foundation plate the bottom membrane seals the storage space from the concrete foundation.

                          The membranes are attached to the foundation by the anchor ring. Each storage container is individually loadcalculated (internal pressure, wind and snow loads). Consequently, membranes with a high tear resistance are selected. The PVC-coated membranes are flame-resistant pursuant to DIN 4102 B1, fungicide treated and fitted with extended UV protection. The inner and bottom membranes are specially coated for protection against the substances contained in the biogas (CH4, CO2, H2S, etc.).

                          The support-air fan ensures that the pressure inside the gas storage container required for absorbing external forces such as snow and wind loads and for the pre-pressurisation of the gas system is maintained. A special air hose connects the fan with the storage container. The non-return valve prevents air escaping in case of a fan failure. As a safety measure a pressure control valve is installed in the air system. This valve controls the operating pressure and automatically closes on reaching a required minimum positive pressure (structural stability, fan failure) in the outer membrane. This mechanism maintains the stability of the storage container during gas production. Fill level gauging facilitates the optimum utilisation of the storage volume and the control of subsequent devices (e.g.: flare, motor, burner, etc.).

                          • Double membrane gas holder for the storage of sewage gas / biogas pursuant to ÖWAV rule sheet 30
                          • Cost effective gas storage solution for up to 12,000 m³ storage capacity
                          • With ultrasound fill level gauging
                          • Low maintenance and energy efficient support air fans
                          • Hydraulic pressure   vacuum protection
                          • Short installation time
                          • Optional standby support air fan
                          • Optional gas alert system
                          • Optional auxiliary shaft equipment
                            • PRESSURELESS GASHOLDER

                              • EnvironTec offers 2 pressureless gas storage systems that are basically differentiated by the type of casing design. The TG model consists of a galvanised steel profile structure with trapezoidal sheet metal cladding. The TGZ model consists of a prefabricated metal silo made from galvanised corrugated steel sheet metal segments with laterally attached stiffening profiles and a conical roof.

                                The storage membrane is made from highquality, leakage-tested, UV-resistant special plastic material; fungicide treated, flame resistant to DIN 4102 B2. The membrane is completely self-contained and freestanding inside the container (no steel components in direct contact with the gas).

                                It is attached by/fitted with a stainless steel connection flange (material no. 1.4571) at the tip of the conical housing and at the bottom of the gas sack. A protective floor matt is laid on top of the concrete foundation for the protection of the storage membrane. The gas containers are equipped with hydraulic pressure/vacuum protection, a mechanical pressure relief valve as well as optical fill level indication and vacuum monitoring.

                                • Pressureless gas storage of sewage, bio, landfill or other special gases pursuant to ÖWAV rule sheet 30
                                • Robust galvanized steel casing, incl. accessories
                                • Short installation time
                                • Optional powder coating or trapezoid metal sheet cladding
                                • Hydraulic and mechanical pressure / vacuum protection
                                • Optical fill level indication, incl. optional 4-20mA signal
                                • Optional gas condenser station and UPS system
                                • Optional gas alert system
                                • Optional auxiliary shaft equipment
                                  • Ttite

                                    • EnvironTec provides you with single or replacement units from leading international manufacturers for a capacity of 50 to 5000m³/h or pressures from a few millibars to 0.5 bar generation.

                                      EnvironTec not only provides individual units, but also delivers complete plug-and-play manufactured container compression systems, which are used in biogas/biomethane and/or landfill applications.

                                        • GAS FLARE

                                          • The Bio-Sewage or Landfill Gas Torch FA I / FAII / FAHT operates fully automatically, is delivered plug-and-play, and meets international standards.
                                              • EMERGENCY GAS FLARE FAI

                                              • The operation of biogas or sewage treatment plants may necessitate the safe combustion of excess gas (e.g. start-up phase, repairs or severe consumer damages). The EnvironTec gas flare FAI series provides the operator with an automatically controlled, safe and low-emission gas flare. The cost- effective design of the FAI primarily ensures a long service life, low maintenance cost and constant availability.

                                                Flare operation is fully automated. On receipt of the start / stop signal from the plant control or manual with a button, the automatic burner control automatically opens the relevant valves and simultaneously initiates the ignition sequence. The flame is continually monitored by a UV sensor and a safety min. pressure switch.

                                                Manual version with manual valve and push button for ignition on request. The FAI is fitted with a standard switch cabinet (IP66) with automatic burner control pursuant to EN 746-2 and PLC Siemens Logo!8 control. Gas combustion is via a single burner system injector. If desired, the FAI flare can be equipped with additional accessories such as pressure control, electrically heated fittings or switch cabinet in stainless steel. The FAI is an efficient and cost-effective solution for locations, where open combustion is allowed. EnvironTec FAI biogas flares are entirely made from stainless steel and fitted with high-quality components/fittings

                                                • Cost effective design
                                                • Simple installation
                                                • Manual/automatic control and ignition
                                                • Entirely made from stainless steel
                                                • Manual valve with DVGW certificate
                                                • Flame arrester with ATEX certificate
                                                • Automatic valve with magnetic/motor drive
                                                • Made in Austria
                                                APPLICATIONS AND SPECIFICATIONS
                                                • Automatic or manual, cost effective combustion of biogas
                                                • Operating pressure 5-40mbar
                                                • Flow 0-500Nm³/h
                                                • Special operating flow and pressure on request
                                                • optional with blower integration
                                              • GAS FLARE FAII

                                              • The operation of biogas or sewage treatment plants may necessitate the safe combustion of excess gas (e.g. start-up phase, repairs or severe consumer damages). The EnvironTec gas flare FAII series provides the operator with an automatically controlled, safe and low-emission gas flare. The robust and functional design of the FAII primarily ensures a long service life, low maintenance and constant availability.

                                                Flare operation is fully automated. On receipt of the start / stop signal from the plant control or after a pressure reaches a set value, the automatic burner control automatically opens the relevant fittings and simultaneously initiates the ignition sequence. The flame is continually monitored by a UV sensor. The FAII is fitted with a plastic switch cabinet (IP66) with automatic burner control pursuant to EN 746-2.

                                                Gas combustion is via injector burners, enabling a pre-mix air-biogas to take place with that achieving a safe, more stable, less noisy and concealed combustion. If desired, the FAII flare can be equipped with additional accessories such as pressure control, pilot burner system, electrically heated fittings or temperature monitoring among others. EnvironTec FAII biogas flares are entirely made from stainless steel and fitted with high-quality components/fittings.

                                                APPLICATIONS AND SPECIFICATIONS
                                                • Fully automated gas flare operation for the combustion of biogas and other combustible gases pursuant to TA-air 5.4.8.1a2 and EN 746-2
                                                • Safe and quiet combustion
                                                • Pilot burner system, pressure control, line trace heating, version for elevated H2S and many others features at costumer request.
                                                • Switch cabinet available in stainless steel (plastic IP66 as standard)
                                              • HIGH TEMPERATURE GAS FLARE HTFA

                                              • The series HT is designed as a flare (according to TA air) with automatic exhaust temperature control at 1000 °C and a dwell of at least 0,3 sec. Area of deployments: Thermal disposal of combustible surplus gases (landfill gas plants) or special gases.

                                                HT flares are supplied with heat-resistant ceramic lagging (up to 1220 °C) and automatically controlled air flap. The flare burner starts when the start signal and the gas pressure due for flare.

                                                Automatic ignition and control during operation. All control functions in weatherproof control cabinet. Ignition system: Pilot burner for propane, natural gas and special gases. All wetted components are welded of V4A steel, rayed and passivated.

                                                TECHNICAL FEATURES
                                                • Concealed burning > 1000 °C
                                                • Dwell of 0,3 sec (TA air)
                                                • Insulated burning chamber
                                                • Standardized to EN746
                                                MAIN FEATURES
                                                • Two-step main gas valve
                                                • Stainless steel switch board
                                                • Continuous power regulation
                                                • Flare-length according to customers wish
                                                TYPE SPECIFICATION
                                                • Volume flow: 50 - 1500 Nm³/h
                                                • Medium: landfill and special gases
                                                • Heat value: 35 – 95 % CH4
                                                • Gas pressure: min. 20 mbar
                                                • Connection: DN50 – DN200
                                                • Ignition: high voltage 10 kW
                                                • Flame control: UV-cell