Chapter 3 Flashcards
ASME boiler and pressure vessel code section 1 covers rules for construction of ______ boilers
Power
ASME boiler and pressure vessel code section 2 covers rules for construction of _____ boilers
Heating
ASME section IV
Heating boilers
ASME VIII
Pressure vessels
ASME section XI
Welding and brazing
ASME B31.1
Power piping
ASME B31.3
Process piping
What is the most important boiler fitting or device attached to a boiler
Pressure safety relief valve
What does a pressure safety relief valve do?
Blows off pressure so it doesn’t explode
Name 3 different types of pressure safety relief valves
- Safety
- Safety and relief
- Relief
The rapid opening and closing of a safety valve is called what?
Chattering
A safety relief valve capacity is measure in what?
Pounds per hour
The capacity of a safety relief valve can be found where?
The valve itself
For low pressure boilers, the capacity of the safety valve must be large enough that the boiler pressure cannot raise more than how much above its MAWP at its highest firing rate?
5 psi
With high pressure boilers, the safety valve capacity must be large enough so that the pressure cannot go how much above the highest valve setting of the MAWP?
6%
