A ball valve is a shut-off valve that controls the flow of a liquid or gas by means of a rotary ball having a bore. By rotating the ball a quarter-turn (90 degrees) around its axis, the medium can flow through or is blocked.
When would you use a ball valve?
Ball valves are more effective at forming a tight seal and have more reliability and longevity than gate valves, but tend to be more expensive. They are often used for shutoff and control applications. Because ball valves can open and close immediately, they are more likely than gate valves to cause water hammers.
What are the types of ball valves?
There are four general types of ball valves: full port, standard port, reduced port, and v port. A full port ball valve has an oversized ball so that the hole in the ball is the same size as the pipeline resulting in lower friction loss. Flow is unrestricted, but the valve is larger.
How do you know if a valve is on or off?
When the handle of a ball valve is parallel to the valve or pipe, it's open. When it's perpendicular, it's closed. This makes it easy to know if a ball valve is open or closed, just by looking at it.
Which is better, a gate or ball valve?
The main difference between these two types is the way they are close. A globe valve uses a plug (stem) that closes against the flow, and a ball valve has a gate (ball) that closes across the flow. Globe valves are good for regulating flow, whereas ball valves are better for on/off control without pressure drop.
Our team of experts at JCN Plumbing has great experience installing ball valves, as we always recommend them to our customers for their reliability and longevity.
If you live in the Miami Dade area or Broward area and need to replace your existing shutoff valve, give us a call and one of our representatives will schedule you an appointment for a Free Estimate.
Call today - (305) 770-6860