Flanged Ball Valve

Description

What is a flanged ball valve? Flanged ball valve refers to a ball valve that connects valves and pipes through flanges. Flanges are joints between pipes and a way of connection. Flange connection is composed of flange, gasket and bolt and nut connection. It is a detachable connection that can be…

Features:
1. The ball valve with flange connection is more convenient to install and disassemble, but the ball valve with flange connection is heavier than the ball valve with thread connection, and the corresponding price is relatively high, so it is suitable for pipeline connection of various diameters and pressures.n2. The flanged ball valve is actually easy to disassemble. It is used on the ports of equipment, pipes, etc. For the convenience of disassembly, flange connection can be selected, and threaded connection is sometimes easy to disassemble, but its pressure rating is not high. The connection form of the flange also has a threaded connection, but it is a pipe fitting with a smaller diameter and a larger thickness.n3. The flange connection not only has the flexibility of installation and disassembly, but also has reliable sealing performance and high strength, and has a simple structure, low cost, can be repeatedly disassembled, and has a wide range of applications.n4. Flat welding: Only the outer layer is welded, and the inner layer is not required to be welded; it is generally used in medium and low pressure pipelines, and the nominal pressure of the pipeline is lower than 2.5MPa. There are three types of sealing surfaces for flat welding flanges, namely smooth type, concave-convex type and tongue-and-groove type. Among them, the smooth type is the most widely used, and the price is affordable and cost-effective.n5. Butt welding: The inner and outer layers of the flange must be welded. It is generally used in medium and high pressure pipelines. The nominal pressure of the pipeline is between 0.25 and 2.5MPa. The sealing surface of the butt welding flange connection is concave and convex, and the installation is more complicated, so the labor cost, installation method and auxiliary material cost are relatively high.n6. Socket welding: generally used in pipes with nominal pressure less than or equal to 10.0MPa and nominal diameter less than or equal to 40mm.n7. Loose sleeve: Generally, it is mostly used in pipelines with low pressure but relatively corrosive medium, so this kind of flange has strong corrosion resistance, and its material is mostly stainless steel.n8. Be sure to check the valve switch indicator and valve number plate to ensure that the identification is clear. If the logo is damaged or falls off, it shall be subsidized in time.n9. Check the bolts on the brackets and joints of the flanged ball valve to see if the parts are well connected. If they are loose, re-tighten them.n10. Check the condition of the key parts of the flanged ball valve, including the packing gland, oil filling hole, oil filling hole nut, plug, expansion joint, valve cover and valve body connection, etc., to see if there are any abnormalities in these parts. Make sure all parts are working properly.n11. In addition to the above daily inspections, a major overhaul is also required every year. Check the conditions of all aspects of the equipment in detail, so that the fault can be eliminated in time to avoid large losses caused by the fault.n12. Leakage of the flanged ball valve is a common problem. When the flanged ball valve fails, it must be dealt with urgently, but pay attention to find maintenance personnel to deal with it. Generally, if the flanged ball valve is purchased from a large manufacturer, the manufacturer can provide after-sales service, so if you have any questions, please contact the manufacturer so that your troubles can be solved.