Designed for maximum performance

With a nominal diameter of DN1200, these valves represent a milestone in technical precision. Double-eccentric technology is the ideal solution for large-scale piping systems due to its direct operational advantages:

• Low operating torque and reduced seat wear.
• Superior sealing and extended equipment service life.
• Minimal friction between sealing surfaces, which drastically reduces maintenance costs.

Advanced protection with HALAR® (ECTFE) coating

The key factor in ensuring the longevity of this project has been the application of the HALAR® coating. This fluoropolymer was carefully selected to shield the equipment from highly aggressive environments. HALAR® offers exceptional properties:

• Total chemical resistance and an unmatched corrosion barrier.
• High impact resistance and superior adhesion to the metal substrate.
• Guaranteed durability when exposed to fluids and adverse weather conditions.

Precision manufacturing and quality control

Producing valves of this size requires meticulous planning. Our team successfully managed every phase of the process under strict quality assurance standards: from material verification and precision machining to surface preparation, coating application, functional testing, and final documentation review. The result is two units ready to operate in the field with complete safety.

Engineering that delivers future value

Large-scale projects go beyond the product itself; they are built on trust. This success reflects the commitment of our engineering, production, quality, and logistics departments, whose synergy ensured flawless execution from design through shipment.

In a market that demands greater efficiency and durability, at Comeval Valve Systems we continue to lead the industry with robust solutions, top-quality materials, and manufacturing excellence.

La entrada DN1200 double-eccentric butterfly valves with HALAR® coating se publicó primero en COMEVAL VALVE SYSTEMS.

Logistics and Manufacturing Capabilities

In the face of a drought emergency, standard industry lead times are not an option. The customer needed a rapid response without compromising the highest technical safety standards. Thanks to the optimization of our supply chain and the agility of our engineering team, we were able to manufacture, assemble, and deliver the entire order in just 6 and a half weeks. A milestone in speed and volume that solidifies our position as trusted partners in projects where every day counts.

Cutting-Edge Engineering for Harsh Marine Environments

The success of this project lies not only in speed but also in the high technical specifications of the equipment supplied, designed to withstand the most corrosive seawater conditions:

Concentric configuration: 95 units in both Wafer and Lug versions, ensuring perfect sealing and optimal hydraulic performance.
Super Duplex Steel Discs: The ideal material for combating the severe pitting and crevice corrosion typical of high-salinity seawater.
Extreme surface protection: Valves coated with a special paint approved for marine environments, ensuring a long service life when exposed to the elements.
Integrated automation: Equipped with high-precision pneumatic actuators and limit switches for safe and efficient remote control from the plant’s control room.

Quick Responses to Water Challenges

At Comeval Valve Systems, we don’t just manufacture valves; we design logistical and technical solutions that enable our customers to overcome geographical and climatic challenges. This project in Italy reaffirms our commitment to efficient water management and demonstrates that, when time is of the essence, our responsiveness is on par with the world’s most demanding infrastructure projects.

Visit www.comeval.es to learn more about our range of solutions for the water and desalination sectors.

La entrada Comeval’s service and response capabilities se publicó primero en COMEVAL VALVE SYSTEMS.

In-House Infrastructure for Large-Scale Challenges at Comeval

Comeval Valve Systems’ major competitive advantage lies in our centralized facilities, designed to respond quickly to technically demanding projects. We have a specialized workshop and state-of-the-art automated test benches that allow us to certify our product lines in-house in accordance with international standards such as EN 12266 and API 598.

Our in-house capabilities stand out in the market for their scope and versatility:Total flexibility and validation in our workshop

Wide range of sizes: We perform leak tests on special diameters up to DN 2600 / 104”.

Extreme pressure ranges: We subject valve bodies to extreme conditions of up to PN 420 / Class 2500.

Operational flexibility: Our in-house capabilities allow us to manage large-scale projects and high production volumes. We alternate between using automatic test benches and dynamic blind flange systems depending on the specific needs of each batch. The result is a fast and efficient response, while always maintaining full control of the process under our supervision.

Total flexibility and validation in our workshop

Conducting tests in our workshop gives us unmatched agility to adapt to each customer’s inspection point schedules. Engineering firms and industrial operators can audit the tests directly in our workshops or appoint external inspectors.

Furthermore, this in-house management allows us to immediately link each result and certificate to our digital traceability system via a QR code. By centralizing the entire inspection process at Comeval, we eliminate intermediaries, reduce response times, and provide the technical expertise demanded by the energy, chemical, and water sectors.

La entrada Hydrostatic tests; seal of guarantee and technical independence se publicó primero en COMEVAL VALVE SYSTEMS.

Extreme protection against industrial corrosion

To ensure safe operation and extend the service life of the equipment, we apply a specific, high-resistance paint finish.
This special coating acts as an impenetrable barrier against UV radiation and environmental corrosion. As a result, our gate valves maintain their structural and operational integrity, drastically reducing maintenance costs and unscheduled plant downtime.

Technical customisation for critical processes

The success of this project lies in the customisation of the internal components of the valves. Fluids in the oil and gas sector present critical variables in terms of pressure, temperature and chemical composition. Following a rigorous technical analysis, we configured the internal components using bespoke alloy materials to mitigate erosion and prevent destructive leaks.

To optimise the operability of these gate valves, we integrated high-performance manual gearboxes. These mechanical mechanisms ensure smooth opening and closing, minimising the torque required by the operator and maximising operational safety under demanding differential pressures.

Valve engineering to global standards

This supply reinforces Comeval Valve Systems’ position as a strategic international partner in the energy sector. We do not simply distribute components; we adapt and certify every industrial valve to the strictest industry standards (API, ASME, ISO). Our technical flexibility enables us to transform standard designs into bespoke engineering solutions for critical environments.

Does your next project require industrial valves with special technical specifications regarding paint finishes or materials? Contact our team of engineers to design the exact solution your systems need.

La entrada Gate valves for the oil and gas industry se publicó primero en COMEVAL VALVE SYSTEMS.

Critical functions of valves in reservoirs

In large reservoirs, butterfly valves perform vital functions for public safety and the management of water resources. This equipment is responsible for precisely regulating the water sent to distribution channels, controlling bottom intakes and managing the drainage systems required to release water in a controlled manner during floods or emergencies. Furthermore, they act as safety isolation devices, allowing sections of pipework to be isolated so that maintenance work can be carried out on the dam without interrupting the general water supply.

Double-eccentric technology

Our range of double-flanged, double-eccentric butterfly valves reliably meets these stringent requirements. Their double-eccentricity design offsets the axis of rotation relative to the seat, which drastically reduces friction during opening and closing. This results in minimal wear on components, a stable operating torque over the years and a bidirectional leak-tight seal that prevents any leakage under massive water columns.

Maximum safety automation with Bernard actuators

The automation of these units is equally critical, as the safety of a reservoir depends on a rapid and reliable response. For this reason, all the equipment has been fitted with Bernard Controls electric actuators. These industrial actuators provide millimetre-precise flow regulation and seamless integration with the dam’s centralised control system. The combination of our valves’ smooth operation with the motor’s controlled torque ensures safe manoeuvres, protecting the pipework against water hammer. With this supply contract, at COMEVAL we reaffirm our commitment to bespoke engineering for safe water management.

La entrada Double-flanged double-eccentric butterfly valves for reservoirs se publicó primero en COMEVAL VALVE SYSTEMS.

This project required a highly engineered technological solution to transport highly concentrated phosphoric acid slurries. This critical fluid presents an extreme combination of two of the greatest threats to the service life of any plant: aggressive chemical corrosion and severe mechanical abrasion caused by the high concentration of suspended solids.

Straight-through diaphragm valves

For this project, straight-through diaphragm valves are the ideal choice. Unlike weir-type models, the obstruction-free flow design of the straight-through series provides a fully concentric channel.

This optimised geometry offers decisive operational advantages for the fertiliser plant:

• Minimal pressure drop: The slurry flows smoothly without internal restrictions.
• No blockages or sediment: Its design, free from internal cavities, prevents the accumulation and solidification of phosphoric acid at the bottom of the body.
• Self-cleaning effect: When fully open, the continuous flow of the fluid itself carries away particles, drastically reducing unscheduled maintenance downtime.

High-strength linings and elastomers

The key to the success of this project lies in the careful selection of materials. To withstand the simultaneous effects of abrasion and corrosion, the body of the DN150 valves features a specific, highly porous and resistant internal lining.

This technical lining acts as an impenetrable barrier for the valve’s metal structure. Combined with the brand’s advanced elastomer diaphragms, the assembly guarantees a completely leak-tight seal and prevents any external leakage. Furthermore, it enables perfect bidirectional flow shut-off and facilitates on-site maintenance work without the need to remove the valve from the pipework.

Bespoke solutions for the chemical industry

With this project, Comeval Valve Systems reaffirms the reliability of its DIAVAL® brand in critical industrial environments with high chemical and mining demands. Our ability to design bespoke solutions tailored to the specific variables of each process is the key differentiator that guarantees maximum safety, durability and cost-effectiveness at our customers’ plants.

La entrada DIAVAL® diaphragm valves for fertilizer plants se publicó primero en COMEVAL VALVE SYSTEMS.

To precisely meet every on-site requirement, the DIAVAL® range is divided into two key configurations, each with very specific technical advantages:

DIAVAL® Corrugated Diaphragm Valves (W Series)

This configuration is specially designed for critical applications and the handling of concentrated chemicals. Its main design benefits include:

• • Leak-tight shut-off with less effort: The central vent reduces the diaphragm’s travel, ensuring an immediate leak-tight seal without straining the mechanism.
  • Flow regulation capability: Its design allows the handwheel to be positioned at intermediate points for precise flow control.
  • Safety with aggressive chemicals.
  • Prevent cross-contamination.
  • In-line maintenance capability: Thanks to its bolted bonnet, the diaphragm can be replaced without removing the valve from the pipework, minimising downtime.

DIAVAL® Straight-Through Valves (ST Series)

This is the preferred choice when extreme abrasion caused by solids and heavy slurries are a key feature of the production process. It stands out for the following advantages:

• • Zero blockages: When fully open, the body behaves like a continuous straight pipe, preventing pressure drops or the risk of blockages in viscous fluids.
  • Less abrasive wear: Solids, sand and sludge flow straight through without striking internal bends directly, extending the equipment’s service life.
  • Direct mechanical cleaning: Its completely straight geometry allows internal cleaning systems to be inserted easily.
  • Perfect bidirectional flow: It guarantees optimal shut-off performance regardless of the direction of fluid flow.

Optimise your plant with COMEVAL®

Choosing the right diaphragm technology makes the difference between an unplanned shutdown and a profitable process. At COMEVAL VALVE SYSTEMS, we help you integrate the exact model required by your technical infrastructure. Do you have a new project underway? Contact our specialist engineers and receive bespoke advice.

La entrada DIAVAL® Diaphragm Valves: Essential for the Chemical and Mining Industries se publicó primero en COMEVAL VALVE SYSTEMS.

Technical Capabilities

Centralizing our operations at the El Puig plant (Valencia) allows us to ensure strict quality control and a rapid response. With over 40 years of experience in the industry, our key technical capabilities include:
1.Machining and automation: Precise integration of valve-actuator assemblies.
2.Original spare parts: Exclusive use of official brand-name replacement parts.
3.Guaranteed calibration: Equipment periodically verified in external laboratories.
4.Functional testing: Rigorous pressure tests to ensure optimal performance.

Diagnosis and Performance Guarantee

We structure our technical support around two principles that reduce our clients’ financial and operational risks:
1.Free diagnosis and solution proposal: We assess the actual condition of the equipment and provide a free technical report. We always prioritize extending the asset’s useful life and ensuring the safe use of the product.
2.Commitment to effectiveness: If, after our intervention, the equipment does not regain its original functionality, we do not charge for the service.

Sustainability and Efficiency 

Extending the service life of industrial valves is one of the most effective sustainability measures today. By prolonging the operational life of existing equipment, we not only optimize the financial investment but also reduce the environmental impact resulting from the manufacture of new components and the generation of waste. In this way, we align financial efficiency with environmental responsibility.
The high manufacturing quality of Comeval Valve Systems products facilitates this refurbishment process. Caring for assets through their durability is the most honest indicator of sustainability and operational maturity. We take responsibility for preserving them.

La entrada The value of our after-sales service se publicó primero en COMEVAL VALVE SYSTEMS.

After weeks of preparation, our team is heading to Germany with a clear goal: to turn your operational challenges into competitive advantages. We’re not just there to showcase our products, but to provide the technical expertise your project deserves.

We invite you to visit us to exchange ideas, address complex technical questions, and discover why Comeval is the partner your water infrastructure needs to lead the transition toward a more efficient and circular model.

A key meeting point: Booth 205

In collaboration with ARI-Armaturen, our space in Hall C2 will serve as a hub for live technical consulting. This year, we want your visit to be as productive as possible, focusing our offering on three high-value pillars:

• Critical equipment selection: We identify the ideal valve for complex fluids, ensuring the integrity of your installation.
• Cost savings: We’ll show you how our latest innovations in valve technology drastically reduce maintenance costs and energy consumption.
• Updated Catalog: Discover firsthand the new solutions added to our water application lines.

Meet Luca Garofalo

For us, technology is only effective if it addresses a real need. That’s why our Water Business Developer, Luca Garofalo, will lead the consultation sessions at the booth.

If you’re looking for solutions that ensure the long-term reliability of your infrastructure, we invite you to schedule an appointment with him. This way, we can dedicate exclusive time to analyzing your technical schematics and specific design requirements.

Hall C2 | Booth 205 (next to ARI-Armaturen)

May 4–7, Munich

La entrada Comeval Valve Systems is ready for IFAT 2026 se publicó primero en COMEVAL VALVE SYSTEMS.

Technical documentation is always available via the QR code

Every valve we manufacture at Comeval includes a unique QR code that links directly to comprehensive and detailed technical information for each valve. This system ensures that the information is always up-to-date, available, and accessible from any device, eliminating the need for printed documents or scattered files.

By scanning the QR code, the user can access:

• lDetailed technical data sheet; with all model specifications.
• Technical drawings and diagrams; essential for engineering and design.
• Installation and maintenance manuals; ensuring proper assembly and safe operation.
• General certificates; such as WRAS, ACS, and other relevant approvals.
• Material certificates and specific test reports for the received valve, guaranteeing full traceability from manufacturing to delivery.

This immediate access alows any professional to have the necessary information available exactly when they need it.

A system that delivers efficiency, security, and transparency

A system that delivers efficiency, security, and transparency
QR code traceability, now fully integrated into our valves, offers key benefits:

• Time optimization: reduces search time and prevents errors caused by outdated documentation.
• Full transparency: Each valve has its own verifiable technical history.
• Improved maintenance: Facilitates product identification and spare parts management.
• Sustainability: Reduces paper use and the duplication of documents.
• Enhanced operational safety: Critical information is always available, even in the field.

An Ongoing Commitment to Quality and Digitalization

At Comeval Valve Systems, we continue to strengthen our commitment to innovation and excellence. The digital traceability provided by the QR codes on our valves is a tool that improves processes, facilitates communication between teams, and ensures more efficient and safer technical management.

La entrada Valve traceability: Comeval’s solution for immediate technical access se publicó primero en COMEVAL VALVE SYSTEMS.