Chapter 111 Flashcards
Back flows prevention consisting of two independently acting check valves with an automatic pressure differential valve located between the check valve. What is this method called?
Reduced pressure principle device
What are two ways water can be distributed throughout a building?
Upfeed or downfeed systems
Large system that forces large amounts of water to be wasted before hot water is available
Non circulating system
Instaneous water heater is known as a?
Tankless water heater
It protects against excessively high water temperatures?
Fusible plug
Flashing of water into steam when faucets are open can be prevented by?
Temperature relief devices
What does PVB and AVB stand for?
Pressure vacuum breaker
Atmospheric vacuum breaker
Pressure in a building plumbing system should not drop below what pressure?
175 kPa
