Our offices will be closed from December 23, 2024, to January 1, 2025.

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The InterApp Team sincerely thanks you for your trust and support over the past year.
We wish you and your family a joyful Christmas and a New Year filled with prosperity, happiness, and good health.

Merry Christmas Season !

Ball valves for demanding conditions, including high pressure and high temperature applications.

We are pleased to announce the introduction of the B11 and B13 high performance ball valves from our sister company Indoil to our product range. The B11 and B13 ball valves are designed for demanding operating conditions, including high pressure and high temperature applications. They are used in industries such as oil and gas, chemical, power generation and petrochemical.

The ball valves feature a two-piece body, full bore and top flange for actuator mounting. They have approvals including PED 2014/68/EU, ATEX, ISO 15848 Low Fugitive Emissions, SIL 3 and Bureau Veritas approval.

Together with our sister company Indoil, we strive to continuously expand our product portfolio for heavy-duty applications and to provide you with valve solutions for the most demanding applications that guarantee safe processes in environments with high temperatures and high pressures.



Learn more about the B11 and B13 ball valves.

Datasheets: 

• B11
• B13

District Cooling and Heating systems provide a centralised, energy-efficient, and environmentally friendly approach to heating and cooling multiple buildings within urban areas.

By optimising the generation, distribution, and consumption of thermal energy, these systems play a key role in reducing carbon emissions and enhancing sustainability. InterApp offers valve solutions to support every phase of these systems. For steam or geothermal applications, our Elara double-eccentric butterfly valve is the optimal choice, while the versatile Desponia is ideal for a wide range of other media.

Our brochure provides further information on which of our butterfly valves and valve configurations is best suited to your application.

The InterApp Academy promotes continuous learning and helps you to deepen your understanding of industrial valves and their diverse applications in various industries.

Whether you want to learn at your own pace or prefer to interact with our experts, we have the right solution for you.

Product courses - online and in person
Application courses - online and face-to-face
Webinars - online
Troubleshooting - online and face-to-face
Customised training courses - online and face-to-face

All courses are carefully designed by our experts to support both sales professionals and engineers in their work. All online courses are accessible via our ValveFinder®.

Would you like to find out more about our Academy? Our brochure will give you a comprehensive overview of our wide range of courses.



If you have any questions or require further information, please do not hesitate to contact us. We look forward to welcoming you to our Academy community soon.

The power generation industry is pivotal in providing electricity to homes, industries, and critical infrastructure, thereby fuelling economic activity.

Environmental considerations are gaining prominence, and the industry significantly contributes to sustainability and climate change discussions. From biomass and solar to wind and hydropower, the sector leads the transition towards a sustainable energy future.

InterApp has been dedicated to delivering high-quality valve solutions for power plant construction for over 50 years. Our products serve a diverse range of facilities, including coal, biomass, and solar power plants, offering customised solutions that meet their specific requirements.

In coal-fired power plants, our valves enhance systems such as water cooling, desulphurisation (FGD), and NOx reduction. Desponia® and Bianca butterfly valves are constructed from durable materials like cast steel bodies and super-duplex discs.

For biomass plants, our butterfly valves feature specially engineered NBR liners, are certified to EN161 standards, and are suitable for potentially explosive environments.

Learn more about our solutions. 
Application brochure - Power Generation

InterApp butterfly valves play a crucial role in the production of essential ingredients for fertilisers such as urea, monoammonium phosphate (MAP), diammonium phosphate (DAP), potassium chloride, and ammonia.

Fertilisers are crucial in supplying vital nutrients like nitrogen, phosphorus, and potassium to plants, thereby boosting their growth and productivity. They are available in a variety of forms, including organic, synthetic, and specialty fertilisers. Their production process - whether for liquid or dry fertiliser - requires durability and reliability.

Our valves are specifically designed to withstand the high pressures and temperatures encountered in fertiliser production. They also offer superior resistance to corrosion and abrasion, making them an ideal choice for the harsh conditions of fertiliser manufacturing.

Learn more about our valve solutions for your fertiliser production processes in our brochure.

Our new Saturnia damper valve has been specifically developed for shut-off and flow control of process gas or hot air. Available in sizes ranging from DN 50 to DN 600, it is designed to operate within a temperature range of -29 °C to +550 °C and withstand pressures up to 0.5 bar.

The body and disc material options include carbon steel, boiler steel, and stainless steel. Additionally, Saturnia offers interchangeable shaft seals, low torque operation, and full compatibility with InterApp gearboxes and pneumatic actuators.

Applications for the Saturnia span various industries, including power plant, chemical, pulp and paper, oil and gas, marine, air separation, and the steel industry.

In addition to the swift delivery of standard items, customised versions tailored to specific applications are available upon request.

For further technical details, please refer to our datasheet.
We are looking forward to your inquiries and stand ready to support your projects.

DrM, Dr. Mueller AG, renowned for advanced filtration systems, successfully completed a challenging metal refining project in Indonesia. Faced with a plant in corrosive environment near the sea, the company partnered with InterApp.

As part of the partnership, special valves were installed, including Bianca butterfly valves DN 150 with stainless steel body and disc as well as PFA-lined ball valves TLBVA DN 40 - DN 100, all designed for use in harsh conditions and coated in accordance with the strict standards of corrosion class C5M.

All valves are operated with IA Motion pneumatic actuators.The project also included PFA-lined check valves WPCV, limit switch boxes ES2.PE and proximity switches.

Discover more in our case study.

The shipping industry is a cornerstone of the global economy, enabling international trade through the transportation of goods along extensive oceanic routes.

Vessels function autonomously, dependent on numerous essential systems for stability, navigation, and safety. InterApp's butterfly valves are crucial in sustaining and managing these systems, guaranteeing the vessel's efficient and dependable performance.



They are used in a wide variety of operations:

- Ballast system
- Ballast water treatment systems (BWTS)
- Bilge system
- Exhaust gas cleaning system (Scrubbers)
- Inert gas system
- Compressed air system
- Fuel and oil handling system
- Cooling water system
- HVAC system
- Freshwater system
- Fire protection system
- Wastewater treatment
- Dredging operation
- Cargo handling

Explore how InterApp propels the shipping industry forward.

Application brochure

The steel industry ranks among the world's largest industrial sectors.

Steel, renowned for its versatility, finds application across numerous industry sectors, including construction, automotive manufacturing, infrastructure development, mechanical engineering, and various other industrial applications.

Our Bianca, Desponia, Desponia plus, and Saturnia butterfly valves excel in terms of variety and reliability and find application in a diverse array of production processes:

- Ironmaking
- Steelmaking
- Primary forming
- Secondary forming
- Pickling
- Coating
- Acid generation
- Water treatment plant
- Gas cleaning system



Discover the suitable butterfly valve for your specific process and medium within our application brochure.

New How-To-Video

In our comprehensive video tutorial, you'll discover how to effectively repair large butterfly valves, taking you through each crucial step in the disassembly and reassembly process, providing you with valuable tips along the way.

Through responsible maintenance and waste reduction, we can collectively make a meaningful contribution to a more sustainable future.

To the video "How to repair large butterfly valves"

Uncompromising quality

The pharmaceutical industry plays a pivotal role in advancing new medicines and contributes significantly to disease prevention and long-term health solutions. Pharmaceutical products are offered in various forms, encompassing solid and liquid oral dosage forms, injectables, topical preparations, inhalants, and more.




The manufacturing of these products demands valves that meet the highest purity standards and exhibit exceptional temperature resistance, all while complying with stringent legal regulations.

InterApp butterfly valves not only fulfill these requirements but are also successfully employed in diverse production processes.

• Batch processing
• Sterilisation processes
• Fermentation
• Filtration
• Washing and dying
• Heat exchanging
• Reacting
• Solvent recovery
• Cleaning-in-place
• Sterilisation-in-place
• Material transfer
• Waste management

Discover the suitable butterfly valve for your specific process and medium within our application brochure.

We are delighted to announce a partnership with CADENAS, providing users with access to CAD and BIM-compatible 3D models of their Bianca butterfly valves.

Building Information Modelling (BIM) catalogues, containing detailed 3D models and building component data, are gaining significance in construction projects due to their precision and efficiency. CADENAS offers an extensive array of CAD catalogues in more than 156 formats, serving as a valuable resource for architects, engineers, and designers.



As of now, our Bianca butterfly valves are seamlessly integrated into the CADENAS Platform. This integration allows users to configure our valves, generate data sheets, and create drawings in their preferred formats.

By making Bianca butterfly valves available in the CADENAS CAD catalogue, InterApp takes a crucial stride towards digitalisation, equipping engineers and contractors with essential data for crafting digital plant twins. The platform is accessible to the public, establishing it as a valuable resource for industry professionals.

Link to Bianca CAD Models

Our new double eccentric butterfly valve Elara, available in sizes ranging from DN 50 to DN 600, has been designed specifically to meet the demands of heavy-duty industrial applications. It confidently performs in extreme temperature ranges, withstanding temperatures from -50°C to +400°C, and effortlessly handling pressures of up to 50 bar.

This robust butterfly valve offers a choice of body materials, including carbon steel and stainless steel, along with a stainless steel disc and three easily interchangeable seat options (MPTFE, metal, and fire safe).



The versatility of this valve extends across a wide range of industries, including water treatment, power generation, chemical processes, life sciences, the pulp and paper industry, sugar industry, oil and gas, marine, district cooling and heating, and air separation.

Notable features include:
- Easily interchangeable seat options that provide customisation to meet specific requirements, even on-site.
- A low fugitive emission gland packing system that ensures environmental compatibility.
- Fire Safe execution in compliance with ISO 10497 and API 607, supported by various certifications.

Our Elara butterfly valve is synonymous with quality and reliability for the most demanding industrial applications. To delve deeper into its technical features, please refer to our comprehensive data sheet.

MORE

We look forward to hearing from you and providing assistance with your projects.

We are delighted to announce the expansion of the InterApp family, and it is with great pride that we officially welcome InterApp North America and InterApp AVK Korea, commencing from October 1, 2023.

With an experienced team around Michelle Sinclair in the USA and the track-record of Yongjin Kim in South Korea, we move closer to our valued customers in these regions, enhancing our ability to serve and support them effectively.




InterApp North America, Inc.
440 Cobia Dr. Ste 1204
Katy, Texas 77494
United States
T: +1 713 860 5125
michellle.sinclair@interapp.net

InterApp AVK Korea Co. Ltd.
Suite 2056, B-dong
Geumgang IX
Tower, Dongtan
Cheomdansaneop 1-ro
Hwaseong-si, Gyeonggi-do
Korea. postal code:18469
T: +82 31 723 0312
yongjin.kim@interapp.net

Visit us at the HTE in Bremen from 27 to 28 September 2023 the world’s largest suppliers trade fair for hydrogen technologies, materials, components, and engineering solutions.



We are happy to present you our valve solutions for water treatment, electrolysis or handling oxygen.

Get in contact with us and arrange a meeting. We look forward to your visit at our booth hall 5, booth 5K100!

High abrasion and corrosion-resistant valves for a long service life with minimal maintenance.

From feed preparation and pulping to bleaching, stock preparation, papermaking, finishing, converting, and HVAC, InterApp butterfly valves cover various process stages of paper manufacturing.

To handle corrosive media, our PTFE-lined Bianca butterfly valve with PFA overmoulded disc is suited. It is ideal for feed preparation from recycled chemicals, chemical and semi-chemical pulping as well as bleaching processes.
For abrasive media in various paper manufacturing processes, our Desponia butterfly valve with stainless steel disc is the ideal solution.
Knife gate valves, stainless steel ball valves, check valves, actuators, and accessories complete the package.



Discover our product range for the Pulp & Paper industry or contact us.

Guarantee efficient production processes

Sugar production is a crucial industry worldwide. It involves a combination of agricultural practices, extraction processes, refining techniques, and quality control measures to ensure a consistent supply of sugar to consumers.

InterApp butterfly valves meet the requirements of different process stages, ranging from preparation to extraction, clarification, evaporation, crystallisation, drying, refining and packaging. They stand for durable and efficient operation.



The InterApp product range for sugar industry covers:

• Centric butterfly valve Desponia®
• Double eccentric butterfly valve Elara
• Knife gate valves
• Ball valves
• Check valves
• Actuators
• Accessories

Discover our product solutions for sugar production or contact us.

Body coatings are important for butterfly valves because they contribute to the durability and performance of the valve. They serve several purposes:

- Protection against corrosion
- Improve wear resistance
- Weather resistance
- Aesthetics

For InterApp butterfly valves Bianca, Desponia and Desponia plus, an epoxy or epoxy/polyurethane coating with a thickness of 80 to 330 mm is mainly used. Depending on the coating material and thickness, different corrosion classes such as C2, C4, C5I and C5M can be achieved. Butterfly valves with a body coating of epoxy/polyurethane and a coating thickness of 330 mm, for example, are suitable for industrial areas with high humidity and aggressive atmospheres and can achieve a service life of over 15 years.



To ensure the highest quality standards, we at InterApp subject our coatings to thorough quality control. This includes adhesion and peel tests to ensure that the coatings are applied under optimal conditions.

Learn more about the different enclosure coatings and their suitability.

Maximum safety and trouble-free operation

Biogas is derived from organic materials including agricultural waste, liquid manure, municipal waste, plant material, green waste, and food waste. It serves as a progressive and sustainable energy source, playing a significant role in the transition to renewable energy.

InterApp butterfly valves are specially designed for the requirements of biogas plants and are used in production processes, such as substrate feeding and pre-treatment, fermentation, digestate treatment and biogas utilisation.



The versatile Desponia offers different, extremely corrosion-resistant liner materials based on NBR or FPM for different H₂S contents.
Desponia® and Desponia® plus, from DN 50 to DN 250 and an operating pressure of up to 5 bar, have fulfilled the strict requirements of EN 161 and received DVGW approval according to EN 161 Class A, valve group 2, safety class B. In addition, they meet one of the most important standards for fugitive emissions, ISO 15848-1 (former TA-Luft/VDI 2440), and can be supplied in ATEX design.

Discover our product solutions for biogas applications or contact us.

Flyer Biogas
Flyer Liner Desponia

Safe and highly reliable valve solutions

In the food and beverage industry, there are various production processes that can vary depending on the type of product being manufactured. The processes range from raw material preparation to mixing and processing, fermentation, preservation, filling, packaging and quality control.

InterApp butterfly valves meet the specifications for smooth, hygienic and reliable production processes and offer:

- Hygienic design
- Easy cleaning and maintenance
- Various materials with food approval
- EPDM and NBR liners in white and blue
- Reliability and durability



Discover the possibilities of Desponia, Desponia plus and Bianca for your process-specific applications in the food and beverage industry and contact us.

Reliable control for harsh conditions

We are pleased to announce the addition of FESTO's SRBC aluminium limit switch box to our range. The SRBC limit switch box is designed to provide electrical feedback and control of the position of valves. It is reliable even in the harshest industrial environments and ensures precise position control and reliable operation.

Key Features of the SRBC Limit Switch Box:

• Tool-free adjustment of trip cams
• Sturdy, corrosion-resistant design for harsh conditions
• Clear 3D position indicator for quick detection of valve position
• Mechanical, inductive, or magnetic switch variants for various applications
• Intrinsically safe options for potentially explosive areas
• Two cable inputs for shared power supply with solenoid valve

Together with our partner FESTO, we strive to deliver valve solutions that optimise processes, increase productivity and ensure operational efficiency.

Learn more about the SRBC limit switch box.

We are pleased to announce another step towards sustainable energy production and the installation of 180 solar modules at our machine factory at Paracuellos del Jarama, Spain.

With the new plant, our site in Madrid, including the production of elastomer-lined butterfly valves, will generate a total power of 190 kW, covering more than 60 % of the required energy with solar energy. In addition, the solar plants contribute to the general energy grid during periods of overproduction or at weekends.



With these installations, we are proud to actively support the general efforts to promote clean energy sources and to make a further contribution to a sustainable future.

Faced with a global shortage of chips, GlobalFoundries increased its production capacity in Singapore by building a new manufacturing plant. InterApp product solutions were used for ultra pure water, waste water and cooling water.

Ultrapure water (UPW) in particular is critical in the semiconductor industry. This high-purity water is produced as close as possible to pure H2O and is used to clean the surfaces of semiconductors. To ensure that even the smallest foreign particles do not enter the process and that absolutely flawless products can be manufactured, the use of high-purity components is crucial.



The InterApp butterfly valve Bianca in high-purity design and Desponia® in grease-free design are manufactured under the strictest purity conditions. They are characterised by their quality and high degree of purity and contribute to the fact that exceptional quality and safety standards could be achieved in the newly built production facility.

Read more in the GlobalFoundries case study.

Safe operation thanks to the right material configuration

Corrosive media cause surface erosions and present significant challenges in terms of industrial equipment maintenance and safety and can cause significant costs.

To safely handle corrosive media, InterApp offers specific discs and liners with high-quality materials. Thanks to a wide range of combination options, our butterfly valves can be optimally composed to your requirements.

Our disc materials for corrosive media include PFA, Hastelloy, titanium, Ultralene Coating™, Stainless steel Halar® coated, Stainless steel, Stainless steel polished, Ductile iron Halar®, Rilsan® or Polyurethan coated.



Many different liner materials complete the range. Which corrosive media do you work with?

Find out about the different materials in our brochure and find the right butterfly valve for your medium.

Over the next two decades, a worldwide doubling of passenger numbers in air traffic and a continuous increase in freight traffic are predicted. In order to meet the challenges ahead, passengers and goods will have to be transported quickly and efficiently, while at the same time reducing emissions.

In Switzerland, the EuroTube Foundation is researching on Hyperloop-technology, a new vacuum transport technology that combines the speed of an aeroplane with the ecological footprint of a train. The hyperloop shall reach speeds of up to 1000 km/h, connect city centres directly and use 100% purely electric green energy.



As part of the project, our InterApp Bianca butterfly valves are installed in the vacuum system and currently tested for vacuum suitability. We will follow the development with excitement and are proud to be involved in this fascinating project.

Learn more about EuroTube and the project.

To be able to optimally serve projects with larger valve dimensions, we have commissioned an additional test bench for nominal sizes up to DN 2200.

In addition to its capacity for larger valves, the advantages of the test bench include the creation of a descriptive quality test report, several test options and the possibility of carrying out remote tests. Thanks to the integrated video camera equipment, the first factory acceptance test for a project in Abu Dhabi with DN 1600 valves and 16 bar operating pressure could already be successfully accepted from the distance.



The new test bench is an important milestone for our competence centre of desalination, which offers customers around the world a comprehensive service - from project support to plant-specific valve configurations.

The scarcity of water resources is an increasing problem for many regions.

Creating new water sources through desalination is therefore a natural and viable alternative. Currently, there are more than 17,000 desalination plants worldwide, producing more than 107 million m³ of freshwater every day, benefiting more than 300 million people.

InterApp butterfly valves are used in seawater desalination plants all over the world and are convincing in a wide range of processes. 

We are therefore pleased to announce the opening of our Desalination Competence Centre at InterApp Spain. Lead by Luis Monsalve, the centre will act as a global coordination hub for sales and production activities within the AVK Group and will assist our partners and customers worldwide in their projects.

We look forward to hearing from you.

Contact:
Luis Monsalve
Desalination Sales Manager
luis.monsalve@interapp.net

Learn more about our solutions for seawater desalination.

We are happy to announce that InterApp Spain is now certified according to ISO 14001:2015.

ISO 14001:2015 provides a foundation for eco-management, whose aim is to address environmental problems in a precautionary manner and to implement production-integrated solutions. These include, above all, closed-loop recycling, material substitution and process flow changes.



With this new ISO 14001:2015 certificate we emphasize our engagement to be an environmentally conscious company and commit ourselves to implement future-proof, environmentally compatible and cost-saving solutions for our operations.

The H₂S content in the biogas is decisive for the choice of liner material. The higher the H₂S content, the higher the sulphuric acid concentration.

Four corrosion-resistant liners for different H₂S contents are available for the Desponia^® butterfly valves:
- Nitrile N
- Nitrile NG
- Nitrile NH
- FPM VD



The high-quality elastomer compounds, together with the robust Desponia^® and Desponia^® plus, ensure trouble-free and safe plant operation.

Learn more about our liners for biogas applications.

To inspect the dimension of our valves, a new portable 3D measuring machine (CMM) is being used at InterApp Spain.



With an accuracy of 0.05 mm, it allows an easy capture of measurements and their use for the verification of the parts manufactured both in our factories and for the inspection of components delivered by our suppliers.

The new equipment is the most suitable tool to increase efficiency in quality processes, since it allows to identify deviations from nominal 3D CAD data during the inspection of the prototype.

Would you like to learn more about the construction and the components of our Bianca and Desponia® valves? In our virtual tour through the Bianca and Desponia® demo case, all essential components and their use are covered.

You can find the video here



Enjoy watching!

We are happy to see that the InterApp family is growing and we are proud to formally announce the opening of our InterApp Sales Organisation in Shanghai, China, effective as of October 1, 2022.

With this important step, we are moving closer to our local customers in the APAC region. At the same time, we are focusing on local resources and production, with our Desponia® butterfly valve for the local market now also being produced locally to supply the region with our products in a more sustainable way.



Customer proximity, quality and sustainability - that's what we stand for.

Green hydrogen is one of the cleanest options for producing hydrogen, as the process is powered by renewable energy sources such as wind or solar.

Absolutely clean, as well as oxygen-suitable valves are required in the demanding production process.




Whether for water treatment, electrolysis or handling oxygen, InterApp's valve solutions ensure safe, efficient and highly reliable processes throughout the entire plant:

- PTFE-lined butterfly valves Bianca
- Elastomer-lined butterfly valves Desponia® and Desponia® plus
- Double eccentric butterfly valve Elara
- Triple eccentric butterfly valve Titania
- PFA-lined check valves STCV, WPCV, Neptunia
- PFA-lined ball valves

Assembled in our state-of-the-art clean rooms, our high-quality valves guarantee absolute cleanliness.
Butterfly valves for oxygen applications are also oxygen certified and listed in the "List of non-metallic materials compatible with oxygen" (DGUV 213-075).

Learn more about this in our brochure.

For safe production and efficient results, it is necessary to guarantee the cleaning standards that are required for the corresponding application.

In our two cleanrooms in Switzerland and Spain, we ensure all cleaning standards for efficient operations, by meeting clean assembly and packaging.



Our cleaning standards cover:
— Fat free (FF)
— Oil and fat free cleaned (335)
— LABS free (LF)
— Oxygen service (OX)
— High purity (HP)

Find out more information in our brochure or contact us.
We are there for you.

For the production of Li-ion batteries, absolutely abrasion and corrosion resistant valves are required.

InterApp's valve solutions ensure safe and highly reliable operation for electrode manufacturing, cell assembly or conditioning processes.

This is what you can expect:
— Process-specific valve solutions
— Competitively priced, long-lasting and highly-reliable valves
— Stainless steel body and inner parts
— Special disc coating for abrasive and corrosive applications
— High purity, LABS-free and ATEX versions
— High availability of products and spare parts

Learn more about it in our brochure or contact us. 
We would be happy to contribute to a sustainable future together with you.

In 2002, ValveFinder® was developed as one of the first valve configurators and, after a short internal test phase, it was made available to the general public quite quickly.

Since then, it has been helping find:
— the ideal valve from over 25.000.000 possible configurations
— the correct quarter-turn actuator, whether it’s manual, pneumatic or electric
— the perfect accessory, such as limit switches, solenoid valves, positioners etc.

Easy configurations, an export option of configurations in pdf or excel as well as the possibility to request a quote contribute to make life easier.


Don't know the ValveFinder® yet?

Learn more about it under https://www.valvefinder.com

We are pleased to introduce our new white Flucast® liner specially developed for abrasive applications in the food industry.

The new liner Flucast® FW has an abrasion resistance 1.6 times higher than standard white EPDM. It has all major food approvals (European Regulation 1395/2004, FDA 21 CFR 177.2600, BFR XXI Category 4) and is the ideal solution for handling abrasive powder food products such as sugar, flour, milk powder, coffee, rice, etc.





Learn more about our reliable butterfly valves and the different disc and liner materials for abrasive media:
Flyer - Flucast liners
Brochure - Safe handling of abrasive media

Discs and liners are the only parts of butterfly valves that are in contact with media and are prone to corrosion and abrasion. InterApp offers spare parts kits for its Desponia® and Bianca butterfly valves which are including all necessary parts to make the valve fully functional and tight again!

To make replacement easier, we have created step-by-step instruction videos on how to replace the damaged parts yourself.
This way, you support a sustainable future and even save time and money.



Learn more about in our videos:
Bianca disc and liner replacement
Desponia® liner replacement

With the right disc and liner combination for Desponia® and Bianca butterfly valves, guarantee a safe operation.

Abrasive media cause surface erosion through mechanical wear and present a challenge for a variety of processes.
In order to make your processes safer and to avoid economic and ecological damage, we at InterApp offer special disc and liner materials.

Our disc materials for abrasive media include:

• PEKK
• Ultralene coating™
• Stainless steel polished
• Hastelloy polished
• Titanium
• PFA

For abrasive media, we rely on various Flucast liners as well as Ultralene and Ultraflon® liners.

With more than 30 combination options, we offer reliable butterfly valves, which are optimally tailored to the needs of the respective application.


Which media do you work with?

Learn about the advantages of the different materials in our brochure and find the right combination of materials for your media.


Link:
Abrasive media brochure
Bianca butterfly valves
Desponia® butterfly valves

Solar energy from the roof of our production facility in Madrid

In June 2019, our Spanish sales and production organization InterApp Valcom moved into a new production facility in San Agustín del Guadalix near Madrid. Even then, it was clear that the spacious flat roof would one day be equipped with a photovoltaic system to support the production of our elastomer-lined butterfly valves with green energy.

Since February, solar energy has been flowing from the roof. 276 PV modules on an area of 652 m² and with an output of 450 Wp each enable us to cover 45% of our electricity demand with renewable energies, thus making a further contribution to the protection of the environment.

Desponia® and Desponia® discs with Ultralene Coating™ offer excellent wear resistance, chemical resistance and anti-adhesion properties for highly demanding environments.

Ultralene Coating™ is a technical plastic with the highest impact strength of any thermoplastic. The material is highly resistant to corrosive chemicals and it has extremely low moisture absorption, resulting in a very low friction coefficient.

Therefore, Ultralene Coating™ overmoulded discs are ideal for use in:
- handling of slurries
- the pneumatic conveying of cement and powder
- the mining industry in general
- flue gas cleaning systems
- desalination processes.

While the initial investment is higher, the long-term financial benefits of Desponia® and Desponia® plus butterfly valves with Ultralene Coating™ overmoulded discs are substantial thanks to lower maintenance cost, less downtime and longer life cycle.

Desponia® and Desponia® plus butterfly valves with Ultralene Coating™ overmoulded discs are typically combined with Flucast® liners. The butterfly valves are available from DN 80-300 for a working pressure up to 10 bar and from DN 800-1400 for a working pressure up to 6 bar.



Link:
Flyer Ultralene Coating™ overmoulded discs
Desponia butterfly valves
Desponia plus butterfly valves

CONTACT US

Desponia® butterfly valves with PEKK coating provide high resistance, under extreme conditions

PEKK (Polyetherketoneketone) is a linear, aromatic,semi-crystalline thermoplastic, widely regarded as one of the highest performing thermoplastic materials in the world. Applied to the disc surface of Desponia® and Desponia® plus, it offers a cost-saving and long-term reliable solution for specific industrial applications, where high corrosion, abrasion and heat resistance are required.



Thanks to its outstanding properties, PEKK coated discs are ideal for use in:
- discharge of filtered solids and slurries in chemical processes
- slurry handling processes in the mining industry
- flue gas desulphurization units in power generation plants
- oil & gas specific applications.

Typical configurations of Desponia® and Desponia® plus butterfly valves with PEKK coated discs cover combinations with Flucast® liners for abrasive applications and FPM liners for high temperature and aggressive applications.



Links:
Flyer PEKK coated discs
Desponia® butterfly valves
Desponia® plus butterfly valves


CONTACT US

A high level of reliability and easy maintenance

The new double eccentric butterfly valve Elara in DN 50 to DN 600 is convincing in heavy duty applications as well as in applications with high and low temperature and pressure conditions.

Advantages:

• Robust and durable construction
• Bi-directional sealing design
• Various body and seat materials
• Low torque and low friction
• Easy maintenance on site
• Top flange according to ISO 5211 allows connection to various types of actuators (electric, pneumatic, hydraulic, etc.)
• Shut-off and control function

All ELARA butterfly valves are ATEX certified in the standard version.

Typical applications are steam, low-pressure steam, hot water, high-temperature hot water, heat transfer fluid, aggressive liquids, oils or hot gases in industries such as power plant construction, chemical industry, life science, marine, oil and gas, as well as district heating and industrial cooling.

For more information, please refer to the data sheets
ELARA EO (cast design) ANSI 150/20 bar and ANSI 300/50 bar or
ELARA EP (forged design) ANSI 150/20 bar and ANSI 300/50 bar.

With the type examination according to the Pressure Equipment Directive 2014/68/EU (PED) of the Bianca butterfly valves DN 350 to DN 600, InterApp is expanding its range of PTFE-lined butterfly valves for an operating pressure of 10 bar.

Bianca butterfly valves with disc materials 1.4462 and 1.4542 PFA-lined are thus now available from DN 350 to DN 600 for an operating pressure of 10 bar.

Downloads
Bianca - Declaration of conformity PED
Bianca - Swiss Safety Center Cert. Module C2
Bianca - Swiss Safety Center Cert. Module B

The Croatian-based company produces mainly high-performance ball and butterfly valves for the industrial segments including the energy sector. As a new member of the AVK group, OMV completes InterApp’s range of high-performance valves.

As of 1 January 2021, the AVK Group has acquired majority shareholding in OMV-INDOIL. The Croatian-based valve company with headquarter in Zagreb is well-known for its high-performance valves and has got a strong brand name in the region. The company was founded 30 years ago by Mr. Tomislav Matkovic, who will continue in the business as a minority shareholder and as a key stakeholder in the development of the company in the new partnership with the AVK Group.

The family-owned company has got two manufacturing sites, located in Zagreb, Croatia and in Capljina, Bosnia & Herzegovina, where high-performance ball and butterfly vales in various materials are produced. In addition, the company offers a range of special valves and project capabilities to local contractors.

With the new partnership, InterApp and OMV-INDOIL will start to create a product portfolio of double offset valves and ball valves, of which customers in demanding industries, such as oil and gas, power generation, processing, marine, water treatment and offshore can benefit from.

We welcome the team of OMV-INDOIL to the group and are looking forward to a successful partnership.

The demanding marine applicactions need high reliability and availability valves solutions. Thanks to our centric elastomer-lined butterfly valve Desponnia® D4 DN 800, body type true flange, no passing rods are needed, which facilitates their installation in the ship's complex systems and locations.

Furthermore, thanks to our flexible own production and indepth application know-how, we are able to assist to realise the most efficient solution on time.


                                                                 

In order to satisfy the growing demand of an elastomere compound for extreme temperatures and for steam applications, InterApp launches a new EPDM liner for its butterfly valves Desponia® and Desponia® plus.

With an improved both compression set and mechanical properties, the new EPDM liner for extreme temperatures is designed for working conditions up to 16 bar and available for the full range of Desponia® and Desponia® plus in all the sizes (DN 25-1600). In combination with stainless steel discs, the most suitable configuration for low pressure steam applications up to 150 °C is created.


                                                               

This certificate allows the use of InterApp butterfly valves Desponia^® and Desponia^® plus for installations on ships and offshore installations.

Prior to certification, Lloyd’s Register inspected InterApp’s manufacturing site and reviewed the product designs to validate compliance with industry codes and standards. In addition, product performance tests have been reviewed to confirm the functional performance of the InterApp designs in production.

With this new type approval certificate InterApp continues to extend its product range for marine applications.

Download the certificate and read more about our product solutions for the marine industry.

 
                                 

High requirements for high purity applications

The reduction of all types of contamination is the most important goal in the production of contamination-sensitive products, such as in the semiconductor or pharmaceutical industry. To guarantee a fault-free production process and exclude critical residues, all products used in the manufacturing process must show a high degree of purity.

For the analysis of our Bianca butterfly valve, the trace analysis department of Exyte Technology GmbH, specialist for clean room technologies and controlled environments, was entrusted with the particle and TOC test according to SEMI F40 and F57.

Particle test

The Bianca butterfly valve in high purity execution was tested on particle residues with the ultra-modern particle measuring device Ultra DI 50, which is ideal for trace analysis.
According to SEMI F40 and F57 a maximum limit value of 0.10 particles/ml is allowed. The Bianca butterfly valves achieved a test value of 0.01 particles/ml, which is far below the permitted value.

TOC test

Within the scope of the TOC test (Total Organic Carbon Test) the sum of all organic carbon in the ultrapure water was analysed.
According to the SEMI F40 and F57 standards, the test defines a limit value of < 1 ppb. The Bianca butterfly valves also fell below this value with a test value of 0.7 ppb.

High-purity butterfly valve Bianca - absolute safety for high purity applications

Both the particle test and TOC test performed by Exyte Technology GmbH confirm that the Bianca butterfly valves in high purity execution have a high degree of purity and are perfectly suited for use in the production of contamination-sensitive products.

Learn more about our product solutions for the semiconductor industry and life science applications.

In order to offer a complete solution for industrial gas burners and gas applications with a working pressure up to 5 bar, Desponia^® and Desponia^® plus (DN 50-250) have proven their reliability by passing the stringent requirements of EN 161 and obtained the approval by the DVGW. This certification guarantees that the valve closes in less than one second, so that dangerous operating conditions are avoided, and the system is protected.

The shut-off valves are composed by selected components for a reliable operation:

• Desponia^® and Desponia^® plus butterfly valves (DN 50 — DN 250)
• IA motion, single acting pneumatic actuator   
• Quick exhaust block
• Solenoid valve
• Limit switch box (optional)
• Air filters (optional)
• Control panel (optional)

Read more about here.                     

Aggressive acids and bases pose a challenge to many processes. It is all the more important to be able to rely on safe, proven and reliable products.

Our PTFE-lined valves offer consistent reliability, guarantee economical and safe operation over the entire service life and convice with superior technical features.

Discover the PTFE-lined valves for corrosive and toxic applications:
- PTFE-lined butterfly valve Bianca, DN 32-900
- PFA-lined ball valves TLBVH/TLBVA, DN 15-100
- Wafer poppet check valve WPCV, DN 15-100
- Flanged poppet check valve FPCV, DN 25-100
- Swing check valve STCV, DN 150-300
- Ball check valve TLBCV, DN 15-100



Read more about in the product overview of PTFE-lined valves.

In order to withstand the attacks of strong bases and acids, InterApp introduces the Flucast^® FX liner.

This new liner has an excellent resistance to acids and concentrated bases even at high temperatures, a good behavior with water steam (up to 160 °C) and an excellent resistance to abrasion at high temperatures (> 130°C).
It is a perfect addition for the Flucast^® family of abrasion resistant liners.

Typical configurations
— Used in combination with PEKK discs for abrasive products at high temperatures (>130ºC)
— With Ultralene™ discs for corrosive products
— With stainless steel discs for steam applications



Read more about in the datasheet of the new Flucast® FX liner.

Liner and disc play a crucial role in elastomer-lined butterfly valves, as they are the only two parts in contact with the fluid.

The Desponia range offers many configurations for the most diverse industrial applications. From the specially developed Flucast^® for abrasive applications, to white and blue liners for food applications, together with the wide range of discs materials, Desponia is a truly polyvalent elastomer-linded butterfly valve.



Read more about Desponia butterfly valves.