DevCo Partners has successfully closed a €521 million single-asset continuation vehicle to support the next chapter of growth for Vexve, a European leader in mission-critical valve solutions for energy infrastructure

Vexve originally acquired the leading Danish valve manufacturer, Frese, earlier this year. Newly dubbed as Vexve Denmark, the business unit continues to serve its customers and provide innovative valve solutions under the refreshed Frese product brand.

Tuure Stenberg has been appointed as a non-executive director of Vexve Group Oy’s Board of Directors, starting from May 28, 2025. Tomio Pihkala steps down after nine years of dedicated service on the Board

April 28 marks the World Day for Safety and Health at Work – a global reminder of the importance of protecting employees’ wellbeing. At Vexve, safety is not a one-day event, but a daily priority across all our operations.

Vexve has acquired EPDs for its district energy valves. The third-party verified document will help Vexve’s customers to make informed decisions and promote sustainable development.

Vexve has completed the acquisition of the leading Danish valve manufacturer Frese A/S. By joining forces with Frese, Vexve strengthens its position as the leading European provider of mission-critical valve solutions in the transition to a low-carbon future.

From all of us at Vexve, we wish you a peaceful Christmas and a successful New Year 2025!

Vexve will acquire Denmark-based Frese A/S, a leading manufacturer of dynamic balancing valves for hydronic networks.

The leading industry trade fair for valve technology, Valve World Expo, is set to take place in Germany this December, and Vexve will participate.

Maria Kalli has been appointed Managing Director of Vexve Oy.

At Vexve, we are taking steps towards a low-carbon future in all our units. Let’s see what our sustainability goals are in the long run and how the progress is going forward at our factories around Europe.

District energy experts from all over the world will gather in Orlando this June to learn from each other and explore solutions at IDEA2024 “District Energy for Sustainable Cities” conference and trade show.

The Finnish Vision Zero Forum has once again granted occupational safety level classifications to its member workplaces, and we are proud that Vexve Finland has achieved the highest "1 – World leading" rating.

Our company passed the API audit on 19-22 February 2024. It was a demanding, detail-oriented, company-wide audit that had specific requirements for both Vexve Armatury products according to API 6D and the entire system according to API Spec. Q1.

Vexve Armatury Group is the leading European provider of mission-critical valve solutions for the energy sector and selected energy-intensive industries. Starting 1st of February 2024 Vexve Armatury Group and the three companies operating under it, Vexve Oy, ARMATURY Group a.s. and ZMK Technologies GmbH, will be known as “Vexve”.

On 5 and 6 December, we held the first ever gas conference. The event took place in a pleasant environment in Krakow, Poland

Vexve Armatury Group is thrilled to announce the appointment of Paul Gustavsson as its new Chief Executive Officer, effective January 23, 2024.

Kotkan Energia is a local energy supplier specializing in versatile energy production in the Kotka area.

Starting from September 27, 2023, Ms. Linda Pålsson has been appointed to the board of directors of Vexve Armatury Group Oy.

For the first time, Vexve Armatury Group has completed a simultaneous customer satisfaction survey for all our segments. According to the results, our biggest strengths are the quality of the products, expertise and reliability as a partner.

Vexve received excellent results in the spring customer satisfaction survey.

Vexve Armatury Group has started a closer sales cooperation in Poland. From now on, the group's district energy and power products will be sold together enabling the group to present its customers a wider portfolio of quality products and expertise.

One of Finland's largest stained glass artworks has found its home on the outside wall of Vexve's headquarters.

We will be serving you normally throughout the summer, with the following exception: Midsummer’s Eve, Friday 23rd June

The autumn of last year brought a significant success for our company when we won a prestigious order for the supply of nine pieces of special shut-off valves L32.61 PN 6 and DN 1800 for operation at the Dukovany Nuclear Power Plant.

Leading players in the district energy and power sectors, ARMATURY Group and Vexve, have announced a significant step towards strengthening their position in the Polish market.

A business mission of Czech hydrogen technology suppliers to the Netherlands took place from 9 to 11 May 2023, with the aim of presenting Czech hydrogen companies at the World Hydrogen Summit & Exhibition 2023.

District energy experts from all over the world will gather in Chicago this June to learn from each other and explore new solutions at IDEA2023 “Empowering the Next Generation” conference.

Investment in production and product development plays an important role in maintaining company's competitiveness and attractiveness in the market.

Did you know that a well-known Finnish valve brand Naval has been part of Vexve since 2014

Vexve has been actively measuring and working to reduce the carbon footprint of its operations since 2019.

An important market in the gas industry is the Polish market, to which the ARMATURY Group has been successfully supplying for many years, especially ball valves type K92.

In October last year, an enquiry was received from a Hungarian customer of the ARMATURY Group for the manufacture of a K92 24" Class 600 ball valve without a single mention of the required delivery date.

In September last year, the ARMATURY Group took on an order for a gate valves type S33.5 with a non-rising stemand an extension of the control.

This year International District Energy Association arranges the Campus Energy Conference for the 36th time.

In recent years, the demand for district cooling has grown in Finland.

Vexve Armatury Group has acquired Armatury Group GmbH, which until now distributed ARMATURY Group's valves for the energy, gas and metallurgy segments in Austria and Germany.

The international fair and conference for the valves industry, the largest of its kind in Europe, was held at the turn of November and December in Düsseldorf, Germany.

An environment-friendly goggle valve DN 1800 was manufactured in the production plant of ARMATURY Group a.s. in Dolní Benešov.

In May this year, ARMATURY Group was given an order to manufacture six K92 ball valves for Pakistan's second largest natural gas infrastructure company.

In May this year, the ARMATURY Group started the production of two DN 2000 butterfly valves for its major partner CINK Hydro – Energy.

Vexve has been awarded the title of Finland's Most Inspiring Workplaces for the third time.

Tampereen Sähkölaitos is a modern energy group that has been the Pirkanmaa region's reliable power source for over a hundred years.

Starting from September 7, 2022, Mr. Nick Adcock has been appointed to the board of directors of Vexve Armatury Group Oy (“Vexve Armatury Group”, “Group”, “Company”).

To strengthen its management and implementation of strategy, Vexve Armatury Group has made two new senior appointments.

At the beginning of this year, the ARMATURY Group began discussing the idea of simplifying and speeding up the production of S33.4 welded gate valves while maintaining all measurable parameters (strength, tightness, deformation, etc.).

Another significant investment in the machinery of the ARMATURY Group is the newly installed robotic welding workstation.

Ball valves for Hungarian gas tanks 24. 8. 2022 Last autumn, the ARMATURY Group was looking for a new partner for the Gas segment in Hungary.

According to the investment plan, last year ARMATURY Group launched one of the largest investments, namely the purchase of a multifunctional machine FRUF 500/8.

One of the strategic goals of ARMATURY Group is expansion to new markets and searching for new opportunities.

The year 2022 is a breakthrough year for the segment of metallurgical valves in ARMATURY Group a.s.

The meeting of people working in metallurgy segment has in ARMATURY Group a tradition. After a break of several years, this event could take place again.

What do Vexve, the Tyrvää Parsonage, and artist Riitta Nelimarkka have in common?

Vexve Oy is the world's leading supplier of district energy valve solutions and represents the highest Finnish expertise in its field.

ARMATURY Group regularly participates in trade fairs and exhibitions held around the world.

The company ARMATURY Group produced three pieces of butterfly valves with DN from 1 800 up to 2 000 for the Philippine hydroelectric power plant.

The threat of cutting off Europe from gas flowing through pipelines from the East is fueling increased interest in liquefied natural gas, also known as LNG. In addition, it is considered a possible ecological and more cost-effective alternative to diesel.

As part of the sales promotion, ARMATURY Group sales department had the idea of creating the first e-book in the company's history.

A correct understanding of the individual actors in the supply chain is important regarding to their rights and obligations, which are mainly related to the placing of products on the European Union (EU) market.

On Thursday, 28 April 2022, we were visited by distinguished guests at ARMATURY Group - the Ambassador of the Czech Republic in Finland, Mr. Adam Vojtěch, and Mr. Ivo Vondrák, the Governor of the Moravian-Silesian Region.

Vexve Armatury Group has acquired valve distribution company Armatury Group GmbH, which to date has distributed ARMATURY Group valves for power, gas, and metallurgy segments in Austria and Germany.

Vexve's goal is to provide its customers with first-class customer service.

Vexve's high-quality and durable valve solutions have been designed and manufactured in Finland for decades.

The cooperation between the Faculty of Mechanical Engineering of VŠB-Technical University of Ostrava (VSB-TU) and ARMATURY Group can be divided into two levels.

Other valves from ARMATURY Group traveled around the world. This time it was valves for the Kudankulam Nuclear Power Plant, which is in the city with the same name in India.

New challenges, or how it is welded in ARMATURY Group 1. 3. 2022 A large share of the production of valves are represented by welding processes, which must meet the highest requirements for the quality of the design.

With the new year came a change in the organization of sales in ARMATURY Group. In the spring of 2021, the management of the Vexve Armatury Group, which ARMATURY Group is a part of, accepted a new strategy for 2021-2024.

Hydrogen is still one of the most discussed topics today, and it affects the whole world.

In 2021, ARMATURY Group received a very significant order, namely for the supply of 23 pieces of gate valves S33.4, in DN from 1000 up to DN 1400. The customer, TATA Steel in Ijmuiden, the Netherlands, received the order at the end of the year.

What was 2021 like at ARMATURY Group? Where ARMATURY Group exported the most and which fittings are the bestsellers?

Responsibility and environment are strongly reflected in Vexve's operations.

In line with the new strategy of the Vexve Armatury Group, the commercial organization of AG will be new-organized with effective date 1. 1. 2022.

After a year of forced pause caused by the COVID-19 pandemic, our company participated at the ADIPEC 2021 exhibition, which took place from 15th to 18th November in Abu Dhabi, United Arab Emirates.

This test is a condition for deliveries to Arab countries such as the United Arab Emirates and Saudi Arabia.

At our online newsletter VALVES360, you can find much information about industrial valves, which company ARMATURY Group manufactures and supply to its customer. In this issue, we will expand your knowledge with a high-pressure gate valves S43.

Selecting the right valve control is not possible without the exact specification from the customer.

Laitilan Wirvoitusjuomatehdas is Finland's fourth largest brewery. It produces about 19.6 million liters of soft drinks and alcoholic drinks annually.

Company ARMATURY Group is one of the leaders in the production of industrial valves in Europe. To remain at the top also in the future, the company must continue to develop and improve itself.

The company ARMATURY Group offers its customers huge range of industrial valves. In the online newsletter Valves360 we already introduce you to gate valves S33 or ball valves with retractable seats. In this issue we will have a closer look at fully welded extraction check valves type C09.6.

Climate change mitigation is currently an important topic for the whole world. The European Commission created in July 2020 Hydrogen Strategy for a climate neutral Europe, which goal is to speed up the development of pure hydrogen and ensure that it becomes the basis for a climate neutral energy system by 2050. Gas infrastructure will be an important part of this transition to green gases.

In Europe, in the gas sector and in other industrial areas, an element, that is a part of many things around us - hydrogen - has recently come to the forefront.

American Petroleum Institute (API) is the largest U.S. trade association for the oil and natural gas industry.

U. S. Steel Košice is an integrated steel company with more than 50 years of tradition and production capacity of 4.5 million tons of steel per year. The company, one of the largest in Slovakia, employs almost 11,000 people.

Vexve Armatury Group has a huge potential in cooperation among companies within the group, which goal is to satisfy their customers and provide them with new and efficient solutions.

Besides the ball valves, butterfly valves, metallurgy valves, and many others we also focus on the production of gate valves, which serve as shut-off valves to open and close the flow of the working medium. Our newsletter already introduces you to some valves and today we will look at gate valves type S33.1, S33.2, and S33.3.

Our company is a manufacturer of a wide range of valves in the field of energy, gas, metallurgy, and petrochemistry.

This is how the classic Czech tale could be called. But instead of animals, we have in this tale a huge ball valve. And the tale is in the world!

Vexve has once again been chosen as one of Finland's most inspiring workplaces. Recognition is given annually to the best organizations that have participated in the Eezy Flow's PeoplePower® survey.

As of July 1, 2021, Mr. Kari Lehtinen has been appointed as Chairman of the board of Vexve Armatury Group Oy (“Vexve Armatury Group”, “VAG”, the “Company”).

Vexve’s iSENSE product family is expanding as Vexve launches a new smart flow measurement solution.

Vexve launches a completely new product series of trunnion mounted ball valves for district energy needs

ARMATURY Group, world manufacturer of ball valves with retractable seats 1. 6. 2021 Company ARMATURY Group is successful in the world of ball valves, thanks to wide portfolio, which the company offers.

Every year at ARMATURY Group we monitor satisfaction of our customers. This year the survey took place in February and was for the second time carried by external company.

These products are due to their demanding requirements on quality, materials, including qualified weld joint technology, as well as the range of the required documentation, fundamentally different from the other range of valves.

The district heating plant built by Liedon Lämpö Oy, which produces district heating and industrial steam, was commissioned in October 2020.

Vexve Armatury Group has joined in Finnish hydrogen cluster.

Vexve has been operating in China's growing district heating markets already for two decades.

Warranty and post warranty service is in ARMATURY Group one of the most important services, which the company provides to its customers.

Valves for hydropower plants and sustainable development 4. 5. 2021 Valves for hydropower plants contribute to the acquisition of green energy, and thus to the reduction of the ecological footprint.

At ARMATURY Group we support sustainable development and production of green energy. Our goal is to reduce a negative impact on the environment!

Although the number of infected is decreasing every day, we still must deal with security precautions. And so, it has been in recent months. We had to adapt to this whole situation and go to the online world.

Last year we commemorated 20 years of ARMATURY Group. Since the beginning of our company in 2000 we became from the small regional company a leader on the market of industrial valves.

Every proper valve expert knows that valves are made from cast and forged materials. But do you know, what is the difference between them and why are they called like that? We will now try to answer those questions.

A year of hard work across the departments was worth it! For our long-term customer Brødrene Dahl, we successfully manufactured four huge Butterfly valves with lever and counterweight L32 DN 1800 and two Dismantling joints M20.

The strategic decision to establish branch office in the United Arab Emirates, specifically in Dubai, showed to be right.

Vexve launches a renewed chamber monitoring solution.

Over 10 years we cooperate with the biggest Czech gas company NET4GAS, which holds an exclusive gas transmission system operator license in the Czech Republic. NET4GAS operate almost 4 000 km of pipeline and transfer about 45 billion m3 of natural gas per year.

ARMATURY Group is intensively involved in the supply of valves manufactured to increase the Polish gas network with the aim to ensure independence on gas sources and to increase transported quantity both in Poland and by transit transmission to other customers in other European countries.

Requirements for anticorrosive protection of valves are very demanding in the gas industry, power industry and petrochemistry. Therefore, we apply a protective layer of Protegol coating on underground valves, which is very resistant to chemical effect of substances contained in the soil, biological affect, mechanical stress, abrasion and to aggressive environment.

Vexve is a globally leading supplier of valve solutions for heating and cooling needs in urban and industrial environments.

The President of the Republic of Finland Sauli Niinistö has decided to award orders of merit persons working at the Vexve Oy

Starting from November 6, 2020, Mr. Kari Lehtinen and Mr. Markku Simula have been appointed as board of directors of Vexve Armatury Group Oy (“Vexve Armatury Group”, “Vexve”, the “Company”).

We have already been one of the ČEZ’s most important partners for a long time. During our partnership, we have built a great reputation in company ČEZ and not only because of our effort and quality work but also because of the fact that our valves perfectly resist the challenging conditions of nuclear power plants.

The transfer line from Fortum Power and Heat Oy's new bioenergy plant in Kivenlahti is equipped with alarm wires installed in insulation, which are connected to Vexve's iSENSE Pulse leakage detection system.

Maria Kalli has been appointed Vexve Oy’s Sales and Marketing Director as of 1 September 2020.

As a local operator, Vexve wants to be a reliable employer, but also actively support the development and operations of the region

The factory extension of the biggest fish smoking plant in the Nordic countries was completed last year.

Vexve Armatury Group strengthens its position in petro-chemical sector by acquiring German specialized valve supplier ZMK Technologies GmbH

ARMATURY Group has won a major contract in the field of oil extraction and distribution.

Vexve is constantly following the situation with coronavirus COVID-19 and undertaking actions to decrease the risk of its spreading.

Two Butterfly valves L32 DN 2600 and the assembling insert M20 from our company will be located at the cooling towers at the Nuclear Power Plant Temelin.

Vexve Oy ("Vexve") has received the Finland's Most Inspiring Workplaces award for 2019.

Completed in 2018, the Syvälahti community centre is a modern building complex that provides extensive services to the inhabitants of Hirvensalo in Turku, Finland.

DevCo has acquired ARMATURY Group, the leading Czech industrial valve manufacturer

DevCo Partners Oy has completed the acquisition of the leading Czech industrial valve manufacturer ARMATURY Group a.s.

DevCo Partners Oy has signed an agreement to acquire ARMATURY Group a.s., the leading Czech industrial valve manufacturer from its founders.

DevCo Partners Oy has signed an agreement to acquire ARMATURY Group a.s., the leading Czech industrial valve manufacturer, from its founders.

ARMATURY Group has won a significant contract for the Romanian TRANSGAZ S.A.

Vexve has sold the first DN 1600 butterfly valves for a district heating project in China.

Close cooperation with reliable distributors plays a key role in the operations of an international growth company.

Underground ball valves AG are instaled in the Russian gas field

Being an approved supplier of these three companies shows that ARMATURY Group has confirmed its ability to satisfy even the most demanding quality requirements. We are looking forward to working together on our future projects,

ARMATURY Group has produced two gate valves DN 2000 for Labská strojní a stavební společnost.

The first Vexve X valves have been installed in the heating system at the Kärppälä agricultural tourism and equestrian sports centre in Sastamala.

„The launch of the profile article, „Cover Story“ in the March issue of Valve World, is the culmination of a campaign that has been going on for three years and will continue,“ says Marketing Manager Vladimíra Václavíková.

ARMATURY Group has expanded its product portfolio with a new line of cryogenic ball valves.

ARMATURY Group manufactured a total of 67 ball valves for a 250 km long section of gas pipeline with a diameter of 1400 mm.

Since 2014, ARMATURY Group has been involved in deliveries for the Korytarz Pólnoc - Poludnie gas pipeline, the most important investment program supported by the European Union in Poland.

ARMATURY Group has been collaborating on the Formula Student project for a long time.

ARMATURY Group has certified ball valves according to EN 14141 already in 2012, has now been granted an extension of this certificate and added to it a ball valve certificate by the DVGW regulations, which require the most demanding customers.

Modern power plants are highly automated and customer meters can be remotely read, but the underground district energy network is still an information black hole.

ARMATURY Group has received an interesting contract from Gilbert Gilkes & Gordon Ltd. from the UK. It is the production of butterfly valves DN 1400 that will serve as a butterfly valve for a Shoshone turbine in Idaho.

Vexve is the first in the market to launch a complete product line of shut-off and balancing valves with integrated press fit connections.

Vexve Summit organized for Vexve’s distributors and partners gathered 80 people from over 20 countries to spend a fall weekend at beautiful Vanajanlinna in Hämeenlinna.

ARMATURY Group has undergone a strict audit and is an approved supplier for the national oil company of Abu Dhabi.

ARMATURY Group produced two goggle valves with a total weight of over than 18 tons for the blast furnace in Linz.

Vexve has earned the trust of its customers and partners during its almost 60 years of operations. Vexve is well-known for high quality and fast deliveries accompanied by first-class customer service and technical expertise.

The ARMATURY Group has received orders of ball valves for Gaz-system in the total amount of 120 millions.

The professional skills Taitaja2018 championships were held on 14-17 May 2018 at the Tampere Fair and Sports Center.

Opening in August 2018 together with Helsinki’s Lasipalatsi (Glass Palace), Amos Rex will revamp the core of the city center and bring art to people's everyday life.

ARMATURY Group successfully completed the recertification audit by API (American Petroleum Institute) and extended the validity of the API Monogram for ball valves following API specification 6D until July 2021.

By 1st March 2018, ARMATURY Group has obtained orders in the amount of one billion - 63 % of the plan for this year.

Finnish HVAC Association SuLVI has accepted Vexve as its co-operation member in March

On 28th of February 2018, the event called Labour Market took place at the Secondary Industrial School in Ostrava, where eighteen important representatives of engineering companies from the Ostrava region were presented.

On 8th February 2018, a group of talented children from the Ludgeřovice Elementary School took part in an excursion at ARMATURY Group.

Vexve has been accepted as a member of SweHeat & Cooling association at the beginning of this year.

Vexve’s valves and hydraulic control products were chosen for the A2A Group’s new ring network at San Siro district in Milan.

Vexve’s hydraulic actuator solution family, Hydrox, expanded at the beginning of the year with the new Hydrox 2 actuator for small butterfly valves and medium sized ball valves.

Vexve and Savosolar products are part of an award-winning hybrid energy system where solar heat is used to cut consumption surges at the bioenergy plant.

Vexve has been accepted as a member of the Estonian Power and Heat Association (EJKÜ).

Vexve is the first valve manufacturer awarded with the EHP003 certificate for steel valves. EHP003 is part of the Euroheat & Power’s certification certifying steel district heating valves (EN 488) for pre-insulated valve assemblies.

From 28th to 30th November, the ARMATURY Group company participated in the GAT WAT exhibition in Cologne, Germany.

Vexve and Kotkan Energia have worked together for decades. The latest joint project has been the renovation of the district heating lines next to the Kymenlaakso Central Hospital and the Hovinsaari Power Plant, where Vexe supplied the valves and advanced remote control technology.

In addition to offering resource-efficient and environmentally friendly heating, local district heating companies play an important role in Finland in strengthening the attractiveness of municipalities.

Vexve valves and hydraulic control solutions support the ambitious energy targets of the Swedish town of Växjö. The objective of Växjö is to be completely free from fossil fuels by 2030.

ARMATURY Group dispatched two huge pieces of high pressure gate valves S43 DN 600 to Indonesia. The complete 3,3 m high armature, including the mounted control, weighed a respectable 6,500 kg.

In days 26. – 27th April the 9th Gas Engineering Fair was held in Kielce, where the company ARMATURY Group was also presented.

Vexve has become a member of FIBS Corporate Responsibility Network and Diversity Charter Finland. FIBS (Finnish Business Society) helps companies to build a more profitable and sustainable business from the viewpoint of both businesses and society.

The latest issue of the Euroheat&Power magazine (II/2017) includes an article by Vexve’s Maria Kalli, Regional Sales Director of Nordics and North America, on intelligent 5th generation district energy solutions.

The Board of Vexve has appointed Jussi Vanhanen (45) as the new CEO of Vexve commencing 1 May 2017. In connection with the appointment Jussi Vanhanen will make a significant investment in Vexve. Acting CEO Otto Kukkonen will take on the role of Vice Chairman of the Vexve board.

Vexve launched an improved TERMOVAR loading unit in spring 2017. Its new features include a brass body, high-performance valve connections, the market's highest quality pump and a more robust overall structure.

Over the last four years, Vexve has been in partnership with Perma-Pipe Middle East as a major supplier of pre-insulated ball and butterfly valves as well as Hydrox hydraulic actuators to the Lusail City's district cooling network.

Vexve participated in Rekrytori, Finland's largest recruitment and training event held on February 15 in Tampere.

Vexve’s membership of the Finnish Energy Club has been approved. In addition to membership, Vexve also gains a seat on the Energy Club Board of Directors.

In February 2017, ARMATURY Group finished the production of special valves for the Russian Severstal Metallurgical Combine. The order includes 14 different valves with flow up to 1400 mm.

Vexve Oy has been accepted as a member of the Euroheat & Power (EHP) and DHC+ Technology Platform.

Green Net Finland's Board of Directors examined and approved Vexve's application for membership, stating that Vexve fits very well with the diverse skills of Green Net Finland’s member network in low-carbon urban construction.

District heating business operators have established a national association, FinDHC ry (Finnish District Heating and Cooling Association).

Mr. Kai Mykkänen, Minister for Foreign Trade and Development of Finland, will visit Cairo with a Team Finland Business Delegation on September 26 – 29, 2016.

There is a lot of potential in Russia to increase reliability of the existing district heating infrastructure. For this reason, local operators are turning to third and fourth generation district heating technical solutions.

Vexve has launched distributorship cooperation with Serbia based Optimal Energy Solutions. Finnish district heating expertise is now available to the dynamic district heating market in Serbia.

Vexve Oy has been accepted as a member of the UK District Energy Association (ukDEA).

DevCo Partners Oy, a Finnish development enterprise, has acquired the share capital of Vexve Oy from Partnos Oy, owned by Jarmo Nieminen.

Vexve has added valve products in the MagiCloud database.

The Mantova district heating company selects Vexve butterfly valves and Hydrox hydraulic control solutions for new district heating distribution line