Steam Boiler Fittings

3. The __________ reduces water turbulence, allowing the true boiler water level to be indicated by the water level in the gauge glass
4. A ________ gauge is a pressure gauge that indicates vacuum in inches of mercury and pressure in psi on the same gauge
5. Safety valve _______ is the amount of steam, in pounds per hour (lb/hr), that the safety valve is capable of venting at the rated pressure of the safety
7. is the process of evacuating (discharging) water and undesirable accumulated material
10. A ________________ is a switch that starts a burner, controls the firing rate, or shuts down a burner based on steam pressure
12. an automatic,full-opening, pop-action valve that is opened by overpressure in a boiler
14. The steam is converted to __________ as heat is transferred.

1. A __________ control is a pressure control that senses steam pressure and automatically shuts down the burner if the operating control fails
2. A ______________ is an auxiliary device commonly used with boilers to transfer heat from a hotter fluid to a cooler fluid
6. When performing a bottom blowdown, the valve _______ to the boiler is always opened first and closed last
8. A _______ tube is an oval tube shaped like a question mark that has a tendency to straighten when pressurized.
9. The ________ chamber causes the safety valve to open quickly (pop) as the total force is greatly increased after the valve opens
11. _____ water is added to a boiler to replace lost water from steam leaks, blowdown, and other losses in the system.
13. The boiler ___ is used to prevent a dangerous vacuum from forming in a boiler when it is taken out of service.
15. Pressure gauges should be checked for calibration and repaired or replaced as needed at least ____ per year