{"id":3390,"date":"2026-09-14T23:13:55","date_gmt":"2026-09-14T15:13:55","guid":{"rendered":"http:\/\/www.dubaiservicing.com\/blog\/?p=3390"},"modified":"2026-09-14T23:13:55","modified_gmt":"2026-09-14T15:13:55","slug":"what-is-the-opening-and-closing-time-of-trunnion-mounted-ball-valves-4692-35498f","status":"publish","type":"post","link":"http:\/\/www.dubaiservicing.com\/blog\/2026\/09\/14\/what-is-the-opening-and-closing-time-of-trunnion-mounted-ball-valves-4692-35498f\/","title":{"rendered":"What is the opening and closing time of trunnion mounted ball valves?"},"content":{"rendered":"

Hey there! I’m a supplier of Trunnion Mounted Ball Valves. One of the most common questions I get from customers is about the opening and closing time of these valves. So, let’s dive right into it. Trunnion Mounted Ball Valves<\/a><\/p>\n

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First off, what exactly are trunnion mounted ball valves? Well, they’re a type of valve used in a whole bunch of industries, like oil and gas, chemical, and power generation. These valves have a ball with a hole in the middle that rotates to control the flow of fluid. When the hole is in line with the pipe, the valve is open, and the fluid can flow through. When the ball rotates so that the hole is perpendicular to the pipe, the valve is closed, and the flow stops.<\/p>\n

Now, let’s talk about the opening and closing time. The time it takes to open or close a trunnion mounted ball valve can vary quite a bit. It depends on several factors, and I’ll go through them one by one.<\/p>\n

Size of the Valve<\/h3>\n

The size of the valve is a major factor. Bigger valves generally take longer to open and close. This is because they have more mass and a larger surface area that needs to be moved. For example, a small trunnion mounted ball valve, say 2 inches in diameter, might open or close in just a few seconds. But a large one, like a 24 – inch valve, could take anywhere from 10 to 30 seconds or even longer. It’s like trying to turn a small doorknob compared to a big, heavy gate. The gate takes more time and effort to move.<\/p>\n

Actuator Type<\/h3>\n

The type of actuator used on the valve also plays a huge role. An actuator is what makes the valve open and close. There are different types, such as electric, pneumatic, and hydraulic actuators.<\/p>\n

Electric actuators are pretty common. They’re usually fairly quick to open and close. They work by converting electrical energy into mechanical motion. The speed can be adjusted, but generally, you can expect a medium – sized valve with an electric actuator to open or close in 5 – 15 seconds.<\/p>\n

Pneumatic actuators use compressed air to operate. They can be really fast, especially for smaller valves. Some pneumatic actuators can open or close a valve in less than a second. However, the speed can be affected by the air pressure and the size of the valve. If the air pressure isn’t high enough, it might take a bit longer to move the valve.<\/p>\n

Hydraulic actuators are powerful and are often used for large valves. They use hydraulic fluid to generate the force needed to open and close the valve. Since they can produce a lot of force, they can move large valves, but they might not be as fast as pneumatic actuators. A hydraulic – actuated valve could take 10 – 30 seconds to open or close, depending on the size.<\/p>\n

Fluid Pressure and Viscosity<\/h3>\n

The pressure of the fluid inside the pipe and its viscosity also matter. High – pressure fluids can make it harder to open or close the valve. The valve has to work against the force of the fluid. For example, if you have a valve in a high – pressure oil pipeline, it might take a bit more time and force to open or close compared to a low – pressure water line.<\/p>\n

Viscosity is another factor. Thick, sticky fluids like heavy oil or some chemicals are more difficult to move through the valve. The valve has to overcome the resistance of the fluid, which can slow down the opening and closing process.<\/p>\n

Design and Quality of the Valve<\/h3>\n

The design and quality of the trunnion mounted ball valve itself can impact the opening and closing time. A well – designed valve with smooth – fitting parts and low friction will open and close more quickly. Valves that are poorly made or have worn – out parts might take longer and could even experience leaks or other problems.<\/p>\n

Why does the opening and closing time matter? Well, in some applications, it’s crucial. For example, in a pipeline where you need to quickly shut off the flow in case of an emergency, a fast – closing valve is essential. On the other hand, in some processes where a slow, controlled flow change is needed, a valve with a longer opening and closing time might be more suitable.<\/p>\n

As a supplier of trunnion mounted ball valves, I understand how important it is to choose the right valve with the appropriate opening and closing time for your specific application. We offer a wide range of valves with different sizes, actuator types, and features to meet your needs.<\/p>\n

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If you’re in the market for trunnion mounted ball valves, whether you need a fast – acting valve for an emergency shutdown system or a slow – acting one for a process control application, we’ve got you covered. Our team of experts can help you select the right valve and actuator combination based on your requirements, including the desired opening and closing time.<\/p>\n

Actuator<\/a> So, if you’re interested in learning more about our trunnion mounted ball valves, or if you have any questions about opening and closing times or other technical aspects, don’t hesitate to reach out. We’re here to help you make the best choice for your project. Let’s have a chat and see how we can work together to get you the perfect valve solution.<\/p>\n

References<\/h3>\n