What Is A Lined Ball Valve?

Lined Ball Valve are available in two designs. One is a two-piece structure with a threaded connection in the middle and a PTFE gasket seal; the other is a three-piece structure with a bolted connection in the middle. Depending on the selected seat and gasket/packing materials, they can adapt to different operating temperatures and media. Forged steel ball valves are generally installed horizontally. API forged steel trunnion-mounted ball valve key technical parameters:
1. Design and manufacturing in accordance with API 6D;
2. Structural length in accordance with ANSI BI6.10;
3. Connecting flange: ANSI BI6.5MSS-SP44;
4. Valve inspection and testing in accordance with API STD.598;
5. Socket ends in accordance with ASME B16.11;
6. Threaded ends (NPT) in accordance with ANSI/ASME B1.20.1

Key design features of the API forged steel trunnion-mounted ball valve include: full/reduced bore; 90-degree detent and lockable features; a special "Y" handle; fireproof and anti-static design; a pair of opposing butterfly springs; a blowout-proof stem; a double seal in the center of the stem; and a bolted, threaded, and gasket-sealed bonnet.

The installation of an API forged steel trunnion-mounted ball valve, like any other mechanical equipment, involves the issue of proper installation posture. Correct installation of an API forged steel trunnion-mounted ball valve requires that the internal structure aligns with the flow direction of the medium and the installation posture meets the specific requirements of the valve structure and operating requirements. Furthermore, the correct posture embodies a sense of uniformity and elegance, representing an organic combination of technical and artistic expression in modern art form.
API forged steel trunnion-mounted ball valves are primarily suitable for various high-pressure media pipelines in the chemical, metallurgical, petroleum, and pharmaceutical industries. They operate at temperatures from -196°C to 450°C; with actuation modes including manual, pneumatic, electric, hydraulic, and turbine. They have nominal diameters from 1/2" to 12" and nominal pressures from 150 lbf to 1500 lbf. They are suitable for water, gas, oil, natural gas, and acid- and alkali-corrosive media.