A ball valve is a valve with a spherical disc, the part of the valve which controls the flow through it. The sphere has a hole, or port, through the middle so that when the port is in line with both ends of the valve, flow will occur. When the valve is closed, the hole is perpendicular to the ends of the valve, and flow is blocked. The handle or lever will be inline with the port position letting you "see" the valve's position. The ball valve, along with the butterfly valve and plug valve, are part of the family of quarter turn valves.
Ball valves are durable and usually work to achieve perfect shutoff even after years of disuse. They are therefore an excellent choice for shutoff applications. Ball valves are used extensively in industrial applications because they are very versatile. And they are easy to repair and operate.
Ball valves may have flanged ends which are drilled according to pipeline compatible flange dimensional standards. Also can be Butt weld and Socket Weld connection.
Ball valves are typically constructed from, cast carbon steel, stainless steel, alloy steels, forged steels, Hastelloy, Monel, Inconel and others. The ball is often chrome plated to make it more durable.
ZM Valve Features:
1) Valve locking device
2) Anti-blow out structure of valve stem
3) Antistatic device
4) Fire protection structure
5) Middle flange leak-tight structure
6) Reliable seating structure
7) Self-relieving structure
8) Full bore or reduce bore for selection