cylinders

Question 1

direct acting

Answer 1

a turn of the handle (stem) results in direct movement of the valve (withstand large amount of pressures) >1500psi

Question 2

indirect acting

Answer 2

turning of the stem indirectly causes the valve to open
used mostly on tanks with lower pressure (<1500 psi )
used for anesthetic gases

Question 3

cylinder markings

Answer 3

stamp into each cylinder

tells you the serial number, made in and model

Question 4

cylinder markings 2.0

Answer 4

08BW99
Original inspection information
Month/inspector initials/year

A + symbol indicates cylinder passed all tests and is good for 5 years

A +* symbol indicates cylinder passed all tests and is good for 10 years

Question 5

ASSS

Answer 5

amrican standard safety system 
used on large cylinders 
specific thread size 
right/ left threading 
>200 PSI

Question 6

PISS

Answer 6

pin index safety system
used on small cylinders up to E size
>200 psi

Question 7

DISS

Answer 7

diameter indexed safety system
pressure <200 psi
diameter of threat is specific to gas
wall outlet

Question 8

KISS

Answer 8

keyed index safety system

quick connect to wall outlet

Question 9

fusible plug

Answer 9

a relief valve that melts at high temperature

as pressure increases so does the temperature

Question 10

spring loaded pressure relief valve

Answer 10

releases excessive cylinder pressure then reseals

Question 11

cylinders sizes

Answer 11

AA————-M
aa being the smallest and M the largest
most common in hospitals are E,D,B and H

Question 12

gas cylindes

Answer 12

mostly refer as a stroller

they are weight in order to know if they are full or empty

Question 13

capacity of common tank sizes

Answer 13

D- 359L
E-623
H-6905L

Question 14

liquid oxygen

Answer 14

liquid O2 exist at -183 degrees celcious

1L of liquid oxygen will expand to 860L at psi