Larger, most times, does not imply being better. I believe, sometimes it's hard to admit to a company that is not based in Texas. But unfortunately it is the truth. Products in the industrial design and engineering sector have improved strength and durability while continuously removing weight and unwanted materials.
These changes not only made many products cheaper and more space-efficient, but also made the product more powerful and stable. This veracity is especially true for valves. Why should the valves be unnecessarily thicker and thicker? Three piece spherical valve. Sometimes too much https://www.kp-lok.com/product/purge-valves/ thickness of a valve can actually weaken the valve. The heavier the wall, the more the likelihood of irregularities on the wall during the forging process.
When the valve has considerable heat, it expands. If the wall of the valve is thick, the part closest to the wall will warm up faster than the other part. This inequality can cause tension in the valve.
This makes the valve more susceptible to cracking under great temperature changes and great frequency vibrations. To prove this point, in order to participate in a small science experiment, thick and thin glasses are made and filled with hot water. You will find that sticking to the refrigerator makes the thicker glass more easily broken.
Oh, science! Bill Nye will be full of pride. Valve engineering is more important than valve thickness or weight. As in many aspects of the industry (because there are different requirements for different applications) balance is paramount.