Ball Valves Types and Terms
Types of Ball Valves
- are valves where liquids can flow only
one way. The pressure from the liquid forces the ball to move,
when the pressure from the fluid stops the ball also stops and
the valve closes.
- make various kinds of ball valves.
- can handle small and large flows
with high pressure ratings.
- are
quarter-turn valves which utilize a cylindrical or tapered plug with
a hole in the middle to control flow.
- are made of a polymer of vinyl chloride.
- are made of stainless steel.
- use
outside levers to slow down the flow of materials through a pipe. The
lever pulls the ball into the flow which causes the flow to stop more
quickly.
- have three different ports. Some three
way valves have all ports open while others may all be closed or
only have one open.
- have
an inlet pipe connection and an outlet pipe connection.
Ball Valves Terms
- Used to operate the ball valve. The
actuator is often used to control the flow of materials.
- The
closure portion of the valve that restricts or controls the fluid or
gas flow.
(http://www.butterfly-valves.org) - A
valve that utilizes a circular disc or vane in order to control flow
by turning
the valve's pivot axis at 90¼ angles to the pipe's flow direction.
- A
projecting rim or edge used to strengthen or attach one object to another.
- The diameter of ball inside the valve equals
the diameter of the pipe. This is also called full port.
- A globular shaped valve whose internal moving parts
consist of the disk, the valve stem and the handwheel.
- A valve that moves up to or from its seat perpendicularly.
This valve generally provides more flow than a ball valve.
- Flow path.
- A valve that controls the amount of pressure.
Typically the valve will shut when a pre-determined pressure is reached.
- A valve that releases pressure if needed.
This valve is self-operating.
- A unit of pressure; equivalent to
the metric unit of Kilonewtons per square centimeter.
- The ball inside the valve has a hole smaller
than the opening in the pipe, allowing for better control. This is also
called standard bore or port.
- A valve that when open allows for the release of
excess pressure or temperature.
- A mixture of liquid, typically water, and solid materials
to create a material similar in consistency to mud or plaster of Paris.
- Upper and lower supports used to keep the ball under
pressure.
- A stationary part of the valve which restricts fluid
or gas flow when it comes in contact with the movable portion of the
valve.