102IB Gas Fitting Part B Flashcards
Schedule 40 and 80pipes psig ?
40 upto 125psig
80 more then that
3 types of copper pipes we use
G L and K
K do not need coating underground
Hose and fitting minimum pressure?
350psig
Maximum pressure drop Allowable in low and hight pressure
Low 1WC
Hight 50% of standing pressure
Hole in member
Minimum 2 inch from any edge of member
What is NPT
National pipe Threed
How many threads need to open (not coved ) ?
First 2 starter Threeds
Dirt POCKET mini dept ?
3 Inch
What do you need to make a dort pocket
A Tee
A Cap
A Nipple
Wht dirt pocket location
Bottom of Gas pipe attached to the Appliance
Can gas pipe go under Foundation
NOO
What is Tracer wire ?
It is used with plastic pipe for underground gas pipe (with type K )
Gas line passing concrete wall must have ?
Sleeving or Dobbel wrapping
RTU have Dirt Pocket?
NOOOO
What is minimum Diameter if pressure Gauge
3 Inch