18 Inch Gate Valve

Description

18 inch gate valve is also called 450mm gate valve, it can also be called gate valve for steam application or sluice valve for water supply according to the purpose; according to the color, it is called gate valve black, gate valve blue, which is a kind of pipeline gate valve.

Features:
1. The fluid resistance is small, and the sealing surface is less brushed and eroded by the medium.n2. It is more labor-saving to open and close.n3. The flow direction of the medium is not restricted, without disturbing the flow or reducing the pressure.n4. The shape is simple, the length of the structure is short, the manufacturing process is good, and the scope of application is wide.n5. It is easy to cause erosion and scratches between the sealing surfaces, and maintenance is more difficult.n6. The overall size is large, a certain space is required to open, and the opening and closing time is long.n7. The structure is more complicated.n8. The valve must be stored in a dry and ventilated room, placed neatly, and the valve stem should not be stressed.n9. During storage, the valve should be in a closed state, and the flanges at both ends should be closed.n10. During storage of this valve, the stem threads and machined surfaces should be coated with an easily removable rust inhibitor.n11. Valves that are stored for a long time should be checked regularly to remove dirt and apply rust inhibitor.