A common debate is whether it’s better to choose a forged ball valve or a cast valve. Many people vehemently believe that one is better than the other. However, when it comes to isolation valves, there are no hard-and-fast rules. Instead, you need to consider the application and the quality of the valve manufacturing process. In many cases, one type of valve may be better for one application and one is better for the other. Therefore, it’s important to understand the differences between casting and forging valves and the pros and cons of each type.
Forged ball valves are, as you’ve probably guessed, forged. However, what exactly is forging? This is where we take metal, heat it until it becomes soft, and then use mechanical forces, like a press, to shape the metal. By contrast, casting involves heating metal until it becomes a liquid and then pouring it into a mold to solidify into a certain shape. Choosing between cast and forged valves comes down to the different properties you need for your applications.
Advantages and Disadvantages of Using a Forged Ball Valve
There are many reasons why you may want a forged ball valve for your application instead of a cast valve. Forged valves do tend to be better for high temperature and high pressure applications. These types of valves are less prone to thermal fatigue because the walls are thinner compared to cast alternatives. Also, forged options have a higher mass, making them mechanically stronger.
However, there are a few reasons why a forged ball valve may not be best for your application. First, the forging process does create limitations for valve size and shape. Forging generally works better for smaller valves and components. In addition, not every metal is suitable for forging, which limits your options for valve material.
Pros and Cons of Cast Valves
Cast valves are a great option where you need quick turnaround and low cost valves, as they require less labor to produce. Also, the casting process allows for more complex shapes and valve manufacturing. You also have greater flexibility in material choice, as many types of metals are suitable for casting.
While cast valves are quite strong and durable when you choose a high quality manufacturer, there are still some restrictions. For example, the solidification process can create small impurities in the metal. They also are less resistant to high temperatures and pressures compared to a forged ball valve.
Choose Copeland Valve for Your Forged Ball Valve Needs
At Copeland Valve, we specialize in valve manufacturing and valve carbide coating in Houston. We are the global leader in design, development, and manufacturing of metal seated severe service ball valves. Our team regularly creates custom valve and coating solutions for a wide range of industries, including oil and gas, petrochemical, mining, and even nuclear power generation. When you need isolation valves, we work with you to find the perfect solutions for critical applications. We manufacture valves that can withstand even the harshest forces. Call us today at (713) 926-7481 to learn more about our valve solutions and request a quote for your valve manufacturing, thermal spray coating, or reconditioning needs. We are here to serve you.