A self-developed two-way forced-sealing ball valve
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In process pipelines, due to the inherent hazards of the materials being transported, it is necessary to use safe, reliable, and durable isolation valves to shut down the pipelines when needed. However, in practical use, traditional valves suffer from friction between the valve core and the sealing surface, which leads to wear of these sealing surfaces during repeated opening and closing operations. As a result, leaks can occur quite quickly, and in severe cases, the valve’s sealing function may be compromised, preventing it from being closed and thus leading to accidents. Traditional forced-sealing ball valves, due to their design, can only achieve sealing on one side. Moreover, their lift-type valve stem design **increases the size of the valve, requires specific space for installation, and tends to cause leakage from the valve stem. The newly developed generation of self-designed forced-sealing ball valves combines the best features of existing designs, fully meeting the requirements regarding valve sealing performance, reliability, and durability in process pipelines. They offer an excellent cost-performance ratio, with the following key characteristics: 1. 90-degree friction-free rotation of the valve ball assembly; 2. Balanced valve ball design that returns to the fundamental principles of sealing; 3. Fixed valve seat design; 4. Mechanical forced sealing at both the upstream and downstream sides, ensuring true DBB performance; 5. Low operating torque; 6. Angular operation of the valve stem for rapid response; 7. Standard full-bore design; 8. Self-cleaning valve disc sealing; 9. Patent-pending automatic switching lock mechanism; 10. Compact size and light weight; 11. Compatibility with mainstream actuators; 12. Design that complies with all major standards (API 6D, 6FA, 607, ANSI/ASME, NACE MR0175); 13. Extremely long service life and environmentally friendly
I wonder if there are any relevant sample materials?
This post was last edited by 32 Points on 2022-1-25 09:31; it’s similar to track ball valves
It is very similar to the patented expandable spherical gate valve of Zhejiang Petrochemical
It has never been used; you can give it a try
I am also looking for this type of ball valve. Do you have any contact information?
They are still different. The design of the lift rod in track ball valves involves positioning the valve ball on the downstream side, which allows for sealing only on one side. Moreover, for medium and high-pressure pipelines, the pin in track ball valves being a straight line requires very high hardness in the material used; ORBIT can meet these requirements, but domestic materials currently do not have such strength
Compared to gate valves, it has a clear advantage in terms of size. Firstly, it features an angular stroke, which allows for faster operation compared to the lift-rod type switches used in gate valves; moreover, this design effectively prevents leakage of the medium that occurs during the lifting of the valve stem