Code Book B 149.1 Sections 6 Flashcards
(30 cards)
What is section 6
Piping systems
What is in General
Type of piping
re-using fittings
What is in Material
Vapour pipe materials
flare nuts forged
underground copper tube
hose and fittings 350 psi
no plastic in liquid propane, rules for it
steel tubing rules
What is in Size
6.1 allowable pressure drop table
where to size different piping
sd 80 and not concealed for threaded less than 1/2”
What is in Volume of gas to be used for sizing gas piping systems
How to size (Btus)
What is in Allowable pressure and pressure drop
add press reg for fluctuations or creeping
What is in Extensions
add if enough gas or add at 24” of meter if not
What tables are in section 6 (4)
6.1 Maximum allowable pressure drop
6.2 Spacing of supports for piping and tubing
6.3 Pressure test requirements
6.4 Gas piping systems that require purging
What is in Location
Inspection by inspector before concealing fittings and pipe
piping chase, stairwell, duct, chimney rules
Can be in return air plenum
What are the tables in section 7
None
What is in Piping practices
No supporting on each other
reaming and cleaning ends
6.2 spacing for support table
when use filter need low press indicator
Back check valve on air/gas
gas supply header
Test port for line press reg
What is in Joints and connections
How do do different joints
Gaskets/ tape/ lubricants for joints
bushings
What is in Branch piping outlets
outlets made as same size as pipe if branches unknow
What is in Appliance connections
quick connect rules
no stress on pipe
different pipes aloud for connections
What is in Piping outlets
1” through wall 2” through floor unthreaded
Plugged valve or capped when not in use
as close as particle to appliance
What is in Drip and dirt pockets
appliances that dont need them
Sized 3” down or equal to pipe size
Same as diameter until 2 then stays at 2
capped, accessible
all points where condensate could happen (temp changed)
What is in Prohibited practices
No nesting bushing
Replace damaged pipe
threads that are not allowed
swing joint or union not concealed
no electrical ground
meter connection using steel or copper
What is in Underground piping and tubing
no smaller than 1/2
How to connect together
depth
no going under into building
Need wire for plastic
What is in Protection of piping and tubing
Paint/coating
Protection when going through things(walls concrete)
Protection in walls
protect stainless steel tubing
Protected against vehicle damage
What is in Identification of piping or tubing
Identifying gas meters for multiple in one place and gas piping in residential.commercial and industrial
What is in Manual shut-off valves
Where to put them near appliances
Types they have to be
One doing multiple systems
Spring loaded and quick connect rules
School or lab rule
What is in Manual-reset valves
A safety control device external to a piping system shall include an automatic valve of the manual-reset
type to shut off the gas supply.
What is in Gas hose and fittings
Only tube heaters can use other than movable appliances
Lengths aloud
Metalic gas hose rules
propane tank rules
What is in Gas connectors
where can use and sizes
oven restrains
