Podcast
Questions and Answers
What is the minimum pressure rating required for blowoff or drain valves used in low-pressure steam boilers?
What is the minimum pressure rating required for blowoff or drain valves used in low-pressure steam boilers?
- 150 kPa (22 psi)
- 200 kPa (30 psi) (correct)
- 250 kPa (36 psi)
- 100 kPa (15 psi)
Where is the blowoff connection located in packaged firetube boilers?
Where is the blowoff connection located in packaged firetube boilers?
- At the bottom of the shell close to the back end (correct)
- On the side of the shell
- At the top of the shell close to the front end
- At the middle of the shell
Which fittings are required by ASME BPVC IV on every hot water heating boiler?
Which fittings are required by ASME BPVC IV on every hot water heating boiler?
- Expansion tanks and safety relief valves
- Soot blowers and economizers
- Flowmeters and check valves
- Pressure gauges and altitude indicators (correct)
Where are blowoff connections typically located in boilers with water legs?
Where are blowoff connections typically located in boilers with water legs?
What is the minimum temperature rating required for valves used to blowoff or drain low-pressure steam boilers?
What is the minimum temperature rating required for valves used to blowoff or drain low-pressure steam boilers?
What is the purpose of an expansion tank in a heating system?
What is the purpose of an expansion tank in a heating system?
According to ASME BPVC IV Part HG-709.2, what is a requirement for expansion tanks in systems designed to operate above 200 kPa?
According to ASME BPVC IV Part HG-709.2, what is a requirement for expansion tanks in systems designed to operate above 200 kPa?
What is the purpose of isolation and drain valves in the piping to a bladder-style expansion tank?
What is the purpose of isolation and drain valves in the piping to a bladder-style expansion tank?
How does oxygen dissolved in the water in non-bladder style expansion tanks affect the heating system?
How does oxygen dissolved in the water in non-bladder style expansion tanks affect the heating system?
What does the presence of a shutoff valve in the connecting line between the tank and the hot water supply header allow?
What does the presence of a shutoff valve in the connecting line between the tank and the hot water supply header allow?
What type of gauge is used to indicate whether the hot water system is full?
What type of gauge is used to indicate whether the hot water system is full?
What is the purpose of an expansion tank in a hot water heating system?
What is the purpose of an expansion tank in a hot water heating system?
What is a unique requirement for safety relief valves in hot water heating boilers?
What is a unique requirement for safety relief valves in hot water heating boilers?
What is the purpose of stop valves in hot water heating boilers?
What is the purpose of stop valves in hot water heating boilers?
Why are siphons not required between the gauge and the boiler in hot water service?
Why are siphons not required between the gauge and the boiler in hot water service?
