What is a Diaphragm Valve? A Complete Guide for Engineers and BuyersIntroductionIn industrial fluid control, diaphragm valves have emerged as a highly reliable solution—especially where hygiene, corrosion resistance, and precise flow control are required. So, what precisely is a diaphragm valve, and Read More

What is One Way Valve? A Comprehensive Guide for BuyersIn the context of controlling fluid flow in pipelines, valves play a critical role in ensuring efficiency and safety.A one way valve, also called a check valve, lets fluid flow in only one direction and stops it from going backward.This raises t Read More

What is an Eccentric Hemispherical Valve? – Full Guide for Engineers and BuyersControlling high-pressure, high-temperature, or slurry media safely and efficiently is a major challenge in industrial processes. This is where eccentric hemispherical valves play a vital role. But what makes the eccentri Read More

How to Properly Store and Maintain Backup Gate ValvesEssential Guide from a Professional Valve ManufacturerBackup gate valves are crucial for keeping operations reliable in many industries. This includes water treatment plants and oil and gas facilities.Even the best gate valve can fail early if som Read More

When installing or purchasing valves, many people often encounter terms like "DN", "NPS", "OD" (Outer Diameter), "Wall Thickness", etc. These can be confusing—especially when you're coordinating projects or ordering valves and fittings. If you don’t understand these terms clearly, you risk mismatche Read More

What is an Electric Valve Actuator?The Complete Guide for Engineers, Technicians, and Valve BuyersElectric valve actuators are a cornerstone of modern fluid control systems—yet for many, they remain a mystery. If you’ve ever wondered what is an electric valve actuator, how it works, and why it matte Read More

How to Convert Manual Valve to Electric: A Complete Guide for 2025In today's automated industrial environments, manual valves are increasingly being replaced or retrofitted with electric actuators to enhance efficiency, safety, and remote control capabilities. But how do you actually convert a manua Read More

What is a Butterfly Valve? A Comprehensive Guide for Industrial ApplicationsTarget Keywords:Primary: "What is a Butterfly Valve"Secondary: "How does a butterfly valve work", "Types of butterfly valves", "Applications of butterfly valves", "Benefits of butterfly valves", "Butterfly valve vs gate valv Read More

Dongguan, China – Following its impactful participation at NEFTEGAZ 2025 in Moscow, COVNA, a global leader in automated valve solutions, was pleased to welcome a number of Russian clients to its manufacturing headquarters.These visits marked an important milestone in COVNA’s global expansion strateg Read More

Showcasing Advanced Valve Solutions and Strengthening Global PresenceMoscow, Russia – April 25, 2025 – COVNA, a global leader in automated valve solutions, proudly announced the successful conclusion of its participation in NEFTEGAZ 2025, Russia’s premier oil and gas industry exhibition. The event t Read More

Title: How to Open a Butterfly Valve: Step-by-Step Guide + Expert TipsMeta Description: Learn how to open a butterfly valve safely and efficiently. Discover step-by-step instructions, troubleshooting tips for stuck valves, and why choosing high-quality valves matters.IntroductionButterfly valves are Read More

When purchasing valves, many people only specify the valve specifications, type, and working pressure. However, in today’s market economy, this approach is incomplete. Valve manufacturers develop their own enterprise standards and product characteristics based on unified design concepts to enhance c Read More

When purchasing valves, many people only specify the valve specifications, type, and working pressure. However, in today’s market economy, this approach is incomplete. Valve manufacturers develop their own enterprise standards and product characteristics based on unified design concepts to enhance c Read More

Title: How Many Turns to Close a Butterfly Valve? (90° vs. Multi-Turn Explained)Title: How Many Turns to Close a Butterfly Valve? (90° vs. Multi-Turn Explained)Meta Description: Most butterfly valves close in 90° (¼ turn), but some require multiple rotations. Learn why and discover valves designed f Read More

How to Open a Butterfly Valve – A Complete Guide for Safe and Efficient OperationButterfly valves are widely used in industries such as water treatment, chemical processing, and HVAC systems due to their compact design and efficient flow control. Whether you’re operating a manual, electric, or pneum Read More