Valve Types
End Connections
Basic Valve Components
Abbreviations
Potpourri
100
Used for starting and stopping flow only.
What is a Gate Valve
100
The most common type on smaller valves, found primarily on low temperature and low pressure valves up to 4 inches.
What is a threaded or screwed connection.
100
The largest structural component and it holds everything together.
What is the body
100
WOG
What is Water, Oil and Gas
100
Valve materials are classified as either of these.
What is metal or nonmetal.
200
Another name for butterfly, ball and plug valves.
What is Quarter turn valves.
200
A stronger, tighter and more leak-proof connection than screwed. Used in systems that contain medium pressure and temperature.
What is flanged.
200
An immovable part of the valve that provides the sealing surface.
What is the seating area
200
SP
What is Steam Pressure
200
2 factors when choosing to use a butterfly valve instead of a globe valve.
What is weight and cost.
300
Uses line pressure to open and will close automatically when flow reverses.
What is Check Valves.
300
Primarily used with bronze valves in low pressure, medium temperature systems.
What is Brazed and Soldered.
300
The moveable component of the valve the seals against the valve seat to control the flow of fluid.
What is the disc or plug.
300
CWP
What is Cold Working Pressure
300
The way valve trim is almost always listed.
What is Stem, Disc, Seat.
400
An automatic pressure relieving device.
What are Safety or Relief Valves.
400
Preferred method of connecting steel valves in high temperature, high pressure systems
What is Welded
400
The pressure boundary for the upper portion of the valve and allows for a leak-proof closure of the body.
What is the bonnet.
400
PVC
What is Polyvinyl Chloride
400
Most common type of stem sealing device.
What is Packing.
500
Used to automatically regulate the flow of fluid in a piping system.
What are control valves.
500
Used in very high temperature and pressure. Internal pressure helps to seal.
What is Pressure Seal Rings.
500
Controls the movement of the valve disc or plug via the valve stem and may be manual or automatic.
What is the operator.
500
CPVC
What is Chlorinated Polyvinyl Chloride.
500
Angle, wye and straight through.
What is types of globe valves.
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