Boiler Basics
H20
Safeties
Controls
Pumps
100

In this type of boiler, water passes on the outside of the tubes. It is generally used in low-pressure applications.

What is a fire tube boiler?

100

The boiling point of water

What is 212 degrees F?

100

The most basic safety device on any pressure vessel.

What is a relief valve?
100

The remote device that tells the boiler to fire/pumps to circulate.

What is a thermostat?

100

The portion of the pump through which water enters.

What is the suction side?

200

The equipment that produces the flame for the boiler.

What is a burner?

200

The term for the amount of energy required to raise one pound of water one degree Fahrenheit.

What is a BTU (British Thermal Unit)?

200

The number of valves between a relief valve and a pressure vessel.

What is zero?

200

This prevents the temperature of the water from exceeding a set temperature.

What is a high limit?

200

The portion of the pump through which water leaves.

What is the discharge?

300

High-pressure-type boiler where the flame passes on the outside of the tubes.

What is a water tube boiler?

300

The volume change of water when changed from a liquid to steam.

What is approximately 1,700 times?

300

A bomb.

What do you get when you pipe a pressure vessel without a relief valve?

300

VFD (unabbreviated)

What is the abbreviation for variable frequency drive?

300

This device keeps strain off of the pumps, while also keeping noise and vibration out of the system.

What is a vibration isolator?

400

A type of boiler where all the controls and equipment come together.

What is a package boiler?

400

The number of BTUs necessary to convert one pound of water from 212 degree liquid to steam.

What is 970.4 BTUs?

400

The distance which the relief valve discharge piping should be terminated from the floor.

What is 6-18"

400

A device that controls the water temperature within the boiler at all times the boiler is running.

What is an aquastat?

400

This device incorporates the check valve, balancing valve, and shut-off valve into one unit.

What is a triple-duty valve?

500

Process used to produce dry steam

What is a superheater?

500

The number of BTUs it would take to change one gallon of 212 degree water from liquid to steam.

What is 8,054.32?

500

A device that shuts the gas off to the boiler in a situation where the water falls below a set level.

What is a low-water cut-off?

500

The device that regulates the frequency of the pumps, thereby increasing their efficiency.

What is a VFD?

500

The device which is mounted on the front of the pump to keep from having to install five straight pipe diameters off the pump.

What is a suction diffuser?

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