Regulating or throttling flow is done with?

Check valve are used to______or ________reversal of flow in piping.

Name two basic types of check valves.

Most valves are selected on the basis of their _______ in a piping system.

Gate valves should be used as _______ valves, either fully open or fully closed

List four types of discs commonly used in gate valves.

List the three most common gate valve stem designs.

Tapered plug disc have ______ seating contact than the spherical or fullway type

What are three main types of discs used in globe valves.

A ________ valve is used when there is a need for absolute tightness around the valve stem.

A rotary or __________ turn valve moves from fully closed to fully open by rotating its stem 90 degrees.

__________ valves are used where a frequent change in direction of flow in more than one pipeline is required.

Metal back up seats enable ________ valves to be used in firesafe situations.

_________ valves can be used for throttling and in some cases as shutoff valves.

List the two basic styles of butterfly valves.

Swing check valves give________ resistance to flow.

The most commonly used bonnet for larger sized valves is the ___________.

Name three types of stuffing boxes.

The ________ bonnet is a good choice for quick dismanteling and reassembly.

The best way to install a valve in a horizontal line is with the stem ______.

Installing a valve with its stem down will allow the ________ to act as a trap for sediment and foreign material.

A factor to consider in the selection of pipe hanger and support systems is:

The most common hanger used in piping systems is the:

A ________ type concrete insert is installed before the concrete is poured