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What type of ball valve should be used for 3-6 kg saturated steam? Are there any detailed parameters? How to prevent leaks
For 3-6kg saturated steam systems, fully welded ball valves or fully open ball valves can usually be used. These ball valves typically offer sealing performance under high temperature and pressure, and are reliable and durable. The specific type of ball valve to choose depends on the particular circumstances, such as pipe size and flow rate. Here are some recommended parameters for ball valves: 1. Material: Stainless steel 304, stainless steel 316, carbon steel, etc. 2. Nominal diameter: DN15-DN200 3. Rated pressure: 1.6MPa-6.4MPa 4. Operating temperature: -40℃-200℃ To prevent leaks, the following points should be taken into consideration: 1. Choose high-quality ball valve products to ensure their sealing performance and durability. 2. Ensure that the connections of the ball valve are properly sealed during installation, and conduct a leak test before use. 3. Regularly check the sealing performance and operational performance of the ball valve, and replace damaged parts in a timely manner. 4. Leak control equipment should be installed around the ball valve to enable prompt handling in the event of a leak. -
There are many types of general-purpose valves, with hard-sealing types used for steam.
This post was last edited by Siege Lion_peyWD on 2023-3-18 at 14:53. For diameters of DN80 and above, a Q341Y-16C hard-sealed ball valve should be used; the temperature and pressure of the medium can determine the appropriate model. However, hard-sealed ball valves are much more expensive per unit than gate valves and stop valves of the same specification. Either top-mounted or two-piece valves can be used; the valve manufacturer may warn you about the risk of ball swelling, but the temperature of 3–6 kgf saturated steam should not pose any problem
It is recommended to use zero-friction telescopic ball valves, which offer dual-direction hard sealing for zero leakage, and can also prevent seizure due to temperature or pressure differences; even after 100,000+ cycles of opening and closing, they maintain a V-grade seal. Advantages such as fast opening and closing speed.