Flush Valves

Water pressures below ________ may adversely affect the flush action of some flush valves, lengthening the duration of the cycle & possibly not allowing it to completely shut off. Therefore it is recommended that this minimum pressure is supplied.

• 20 psi

• 40 psi

• 50 psi

• 10 psi

Box "A" in the picture is the __________________.

• upper chamber

• relief valve

• diaphragm

• bypass orifice

Box "B" in the picture is the __________________.

• upper chamber

• relief valve

• diaphragm

• bypass orifice

Box "D" in the picture is the __________________.

• relief valve

• piston

• plunger

• bypass orifice

Box "E" in the picture is the __________________.

• relief valve

• piston

• plunger

• bypass orifice

Box "G" in the picture is the __________________.

• relief valve

• piston

• plunger

• bypass orifice

Flush valves may be found on _________________.

(Check all that apply)

• commercial water closets

• urinals

• slop sinks with flush rims

• bedpan washers

Which of the following are traditional types of flush valves?

• Metering

• Diaphragm

• Plunger

• Piston

Which of the following are the 2 terms that are used to classify restroom usage?

• high traffic

• low traffic

• high flow

• low flow

In areas such as sports stadiums, the _________________ is the valve of choice due to the quick recovery required to immediately flush again.

• diaphragm style

• piston style

• metering style