Full Bore vs. Reduced Bore- A inside a reduced bore ball valve is one pipe size smaller than the valve's pipe size. This restriction causes a reduction in flow rate. The main purpose of a reduced bore ball valve is to throttle back the flow even when the valve is fully open. Full ...
Full Bore vs. Reduced Bore- A inside a reduced bore ball valve is one pipe size smaller than the valve's pipe size. This restriction causes a reduction in flow rate. The main purpose of a reduced bore ball valve is to throttle back the flow even when the valve is fully open. Fu...
Technicians use a "blower-door test" to accurately measure air leakage in houses. The test involves sealing a portable, frame-mounted fan in an exterior doorway to the house. Any known openings to the outside, such as the fireplace flue; bathroom vent fans; and the flues to the water hea...
U-factor (a gauge that represents the window's rate of heat loss), visual transmittance (a measure of the amount of light the window lets into a room), and the solar-heat-gain coefficient (a measure of the solar heat gain possible through that window). ...
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