Process design of two-piece high platform ball valve

The two-piece high-platform ball valve focuses on detail optimization in process design to improve overall operational stability. The valve body connection is symmetrically fastened with high-strength bolts to ensure uniform stress on the joint surface of the middle flange and prevent leakage due to local loosening. The gasket material can be selected according to the use environment, such as graphite composite gasket or metal wound gasket, which has excellent resilience and temperature resistance, and can maintain sealing integrity under frequent thermal cycling conditions. The anti-blowout structure design is adopted between the ball and the valve stem, so even under abnormal high pressure conditions, the valve stem will not detach from the valve body, ensuring operational safety. The valve stem seal generally adopts a multi-layer packing combination, with an external packing gland to adjust the pre-tightening force, effectively preventing external leakage and meeting strict environmental protection requirements.

This type of valve undergoes multiple rigorous tests during production, including shell strength tests, high-pressure sealing tests, and low-pressure airtight tests, to ensure that each product meets the specified standards before delivery. In terms of surface treatment, the outer surface of the valve is usually sandblasted to remove rust and then coated with epoxy resin or polyurethane coating to provide long-term corrosion protection. The identification is clear, including model, nominal diameter, pressure rating, flow arrow and other information, which is convenient for on-site identification and installation. In terms of operational performance, it is easy to open and close, usually rotating 90 degrees to complete the full opening or closing action, with rapid response, suitable for conditions requiring rapid cutoff. Due to the symmetrical structure, good sealing can be achieved for bidirectional flow of the medium, increasing the flexibility of use. The overall design takes into account both functionality and safety, reflecting the technological level of modern industrial valves.