In modern industrial automation, pneumatic valves play a vital role in ensuring efficient and reliable fluid control. Designed for precision and durability, COVNA pneumatic valves are manufactured under ISO 9001 standards and certified by SGS, RoHS, and CE, making them trusted solutions across more than 180 countries.

COVNA offers a wide range of pneumatic valves, including pneumatic ball valves, butterfly valves, and angle seat valves. These products are suitable for controlling water, air, gas, oil, and other liquid media. With materials such as stainless steel, aluminum alloy, cast iron, and plastic, they are engineered to meet diverse application requirements.

Installation is made simple with multiple connection options, including threaded, flanged, wafer, lug, tri-clamp, and quick-install designs. This flexibility ensures easy integration into existing systems and reduces maintenance downtime.

Industries such as food and beverage, water treatment, wastewater management, chemical processing, textiles, pharmaceuticals, and power generation rely on COVNA pneumatic valves for stable and efficient operations. In addition to ready stock, COVNA also provides OEM/ODM customization services to meet specific project needs.

The 2025 Beijing International Water Treatment Exhibition will be held at the Beijing National Convention Center from October 20th to 22nd. COVNA's booth number is 3H160. During the exhibition, we will showcase product performance and engineering application scenarios through physical prototypes, interactive demonstrations, and technical materials, helping visitors quickly evaluate product field suitability and engineering value.

This exhibition will cover a complete range of fluid control solutions, from valve bodies and positioners to electric and pneumatic actuators. Highlights will be high-reliability ball, butterfly, and gate valves featuring corrosion-resistant materials and low-leakage construction. We will also demonstrate valve control units that support remote monitoring and Industrial IoT protocols. Interactive demonstrations will showcase positioning accuracy, response speed, and system integration capabilities, allowing customers to evaluate product suitability under real-world conditions.

COVNA provides customized engineering-level selection and material recommendations, combined with flow calculations and anti-corrosion treatment solutions to meet diverse water treatment conditions. All products undergo rigorous factory inspection and necessary third-party testing to ensure long-term reliability. The company offers full-lifecycle support from pre-sales selection, sales support, and after-sales maintenance. From commissioning to long-term operation and maintenance, COVNA offers proven solutions to reduce on-site maintenance frequency and overall operating costs.

COVNA looks forward to discussing technical challenges and engineering implementation paths in the water treatment industry in Beijing, and working together to promote the implementation of more reliable, intelligent, and sustainable fluid control solutions in real-world projects. Please visit booth 3H160 from October 20th to 22nd for discussions and experiences.

The St. Petersburg exhibition was a resounding success, and we returned home with positive results. COVNA Industrial Automation Ltd. showcased its latest automation products and solutions. All employees working at the booth received positive feedback for their compelling demonstrations and enthusiastic customer service, sparking numerous conversations.

As we mentioned earlier, the exhibition enabled us to engage with existing customers, and this year, new customers and partners as well. Attendees from many different countries and industries provided excellent feedback on the performance of our solutions, the availability of case studies, and the scalability of requested functionality. Many discussed potential case studies and any customization requests. We were able to engage in practical discussions to explore potential technical and business partnerships.

Interactions outside the exhibition were equally significant. Trust and collegial relationships stem from the confidence fostered by moments of comfort. Business discussions arose spontaneously during breaks and flights, and were also fostered through casual meetings and meals. These "non-work" interactions are crucial to developing collaborative relationships.

Participating in the exhibition raised our brand awareness, opened up new business opportunities, and provided insights into potential product improvements. We plan to incorporate market feedback, both technical and otherwise, received during the show into our internal reporting to enhance product iterations and marketing strategies tailored to the needs of our international customers.

We thank all new and returning customers who visited us during the show and for their trust, and we also thank our staff for their professionalism and collaborative efforts. Farewell, St. Petersburg. We hope to meet again soon to explore new opportunities for collaboration and innovation.

COVNA Industrial Automation Co., Ltd is proud to announce its participation in the upcoming ROS-GAS-EXPO 2025, one of Russia’s premier exhibitions for the gas and industrial automation sectors. From October 7 to 10, we’ll be exhibiting at Booth Q4.7 in St. Petersburg, presenting our latest innovations in valve technology and automation solutions.

Event Overview

What to Expect at Our Booth

COVNA will be showcasing a wide range of industrial automation products tailored for gas, petrochemical, water treatment, and environmental applications:

• Electric Ball Valves & Butterfly Valves – Precision control for demanding environments
• High-Speed Solenoid Valves – Reliable performance for automated systems
• Smart Actuators – Enhancing efficiency and control in industrial processes
• Custom Valve Solutions – Engineered to meet diverse global requirements

Our technical team will be on-site to provide live demonstrations, product consultations, and tailored solutions for your business needs.

Why Visit COVNA?

With a global footprint across 60+ countries, COVNA is a trusted name in industrial automation. Our commitment to quality, innovation, and customer-centric engineering has made us a preferred partner in sectors such as gas, oil, chemical, water, and energy.

ROS-GAS-EXPO 2025 is not just a showcase—it’s a gateway to deeper collaboration, market expansion, and technical exchange. Whether you're a distributor, engineer, or procurement manager, we welcome you to explore new possibilities with COVNA.

Corrosive elements, high temperatures, high pressures, frequent starts and stops, and valve leaks are common characteristics of chemical plants. Whenever a valve leaks, production stops, contamination occurs, and the workplace becomes more hazardous. COVNA recognizes this and designs corrosion-resistant ball valves to withstand the harshest chemical working conditions. Their precision alloy material offers high-temperature resistance and precise sealing, ensuring reliable and leak-free valves.

In chemical plants, the interaction of various media can cause even minor seal defects to trigger catastrophic leaks.

Damaged valve stems and seats are common causes of leaks due to corrosive media in pipelines.

"Aging, high internal diameter accuracy, short maintenance intervals, and high downtime maintenance costs" all describe the core characteristics of traditional valve seals.

COVNA corrosion-resistant ball valves offer key technological advantages that set them apart from the competition.

This exceptionally corrosion-resistant, duplex alloy, known as COVNA alloy, offers industry-leading resistance to strong oxidants and hydrogen sulfide.

The all-metal hard seal design makes the valve seat unique. With no rubber sealing components, the risk of seal failure is virtually eliminated, and the valve seat is temperature-resistant up to 450°C.

This achievement is achieved through full CNC control. Dynamic tracking pressure testing guarantees a surface roughness of Ra ≤ 0.4μm. DocuTrack is a software that ensures zero leakage and is particularly suitable for surface plating.

Modular Maintenance Structure

The quick-connect, removable valve stem assembly ensures optimal operation of the piping system, allowing the stem assembly to be replaced while the piping system is operating without shutting down or disassembling the system.

Installation and Maintenance Key Points

Pre-installation Inspection

Inspect the flange surface for scratches. Open the valve fully to remove any foreign matter from the internal cavity.

Regular Lubrication

Inspect the valve packing and stuffing box every three months and apply high-temperature grease as appropriate for system conditions.

Remote Monitoring

A pressure relay monitors the pressure differential across the valve in real time to check the sealing condition.

Remote Maintenance

The valve can be remotely maintained and monitored in real time using the pressure sensor provided with the valve.

COVNA's corrosion-resistant ball valves are the solution to chemical plant leak challenges. These valves utilize the latest alloys and all-metal seal construction. COVNA provides an added layer of safety for your installation, significantly reducing maintenance costs and environmental risks.

Contact COVNA today for detailed product white papers and field-tested solutions to seal leaks in your chemical plant.