Flush Valves And Flushometeres

Front 1

where are electronic faucets not normally used on?

Back 1

single family residential applications

Front 2

residential faucets are normally manufactured out of what material?

Back 2

yellow brass

Front 3

standard faucets are normally also called what?

Back 3

two handled faucets

Front 4

what type of pressure do two handles faucets rely on?

Back 4

water pressure to both the hot and cold water to maintain a set pressure

Front 5

single leaver faucets use how many control mechanisms?

Back 5

one control

Front 6

single handle faucets rely on what type of water pressure?

Back 6

equal water pressure on the hot and cold

Front 7

what time of faucet is required for outside applications?

Back 7

frost free faucets

Front 8

vaccuum breaker = ?

Back 8

back syphonage

Front 9

what type of vacuum breaker do frost free hose bibs use?

Back 9

atmospheric vacuum breaker

Front 10

why must Hose bibs be graded?

Back 10

to prevent them from freezing and splitting

Front 11

what is another name for a metering faucet?

Back 11

time delay or push button

Front 12

what is the benefit of using a metering faucet?

Back 12

saves water

Front 13

what is required on a metering faucet to keep a predetermined temperature?

Back 13

a mixing valve

Front 14

where are electronic faucets normally found?

Back 14

commercial applications

Front 15

what type of power supply do electronic faucets use?

Back 15

24 V power

Front 16

what faucets hot and cold water supply may be independently connected and keep a tempered water with a mixing valve?

Back 16

electronic faucet

Front 17

what must you do first if an electronic faucet isnt working

Back 17

check the battery

Front 18

what style of faucet required the most maintenance?

Back 18

washer style faucets

Front 19

washer style faucets rely on what to open and close the valve?

Back 19

the compression of the faucet or bibb washer on the seat

Hint 19

Front 20

what is the noticeable difference with washerless style faucets ?

Back 20

they DO NOT use washers.

they use a spring loaded seat or O ring

Front 21

what is a pro about ball style faucets?

Back 21

they are extremely durable and easy to repair.

Front 22

when a ball style faucet is leaking from the handle, what should you check?

Back 22

check the seats or the spring.

Front 23

what do single handle and two handle faucets use to keep it water tight?

Back 23

o rings

Front 24

what is the maximum length for any supply tube?

Back 24

750mm or 30"

Front 25

what is the advantage of using a plastic nut or washer to hold a two handled faucet down?

Back 25

they wont have corrosion damage

Front 26

what is the purpose of a plastic guard on a shower or tub trim?

Back 26

to find the maximum depth to hang the tap

Front 27

what is the bibb washer material ?

Back 27

neoprene

Front 28

how can you tell if the brass seat in a washer style faucet is replaceable?

Back 28

the opening that the washer seats against will be hexagonal or square

Front 29

what causes wire drawing on the brass seat

Back 29

a fine spray of water pressing between the bibb washer and the surface of the brass seat

Front 30

what is the minimum supply line required for a metering flush valve on a urinal?

Back 30

1/2"

Front 31

what is the minimum size of supply line required for a diaphragm flush valve used on a urinal?

Back 31

3/4"

Front 32

what is the minimum water supply pressure for a piston or diaphragm flush valves for use on urinals?

Back 32

100 Kpa or 15 psi

Front 33

what is the minimum supply line required for piston flush valves used on water closets?

Back 33

1"

Front 34

what is the maximum pressure that a flush valve can be operated under?

Back 34

550 kpa or 80 psi

Front 35

what size of outlet tube is required from a flush valve for connection on a urinal?

Back 35

3/4"

Front 36

what size of outlet tube is required from a flush valve for a connection of a water closet?

Back 36

1-1/2"

Front 37

what is used to signify the flush volumes of various diaphragms and piston assemblys?

Back 37

colour coding

Front 38

how many urinals can a 3 gallon automatic flush tank serve?

Back 38

3 urinals

Front 39

how many urinals can a 5 gallon automatic flush tank serve?

Back 39

5 urinals