Cyclopedia of heating, plumbing and sanitation; a complete reference work . Fig. 55. Air Valve. ^siri7^ inside the bolts. To describe a tee, al-ways give • the dimensionsof the run first and theoutlet last; for example, atee 6 inches at one end, 5inches at the other, with anoutlet at the side Z\ inches,would be known as a 6 by5 by 3^ tee. Expansible noat. Pig. 56. Air Valve. A tee with the outlet larger than the openings on the run, is known 360 STEAM AND HOT WATER FITTING 43 as a bullhead tee. Tees with all three openings of the same size areknown as straight tees. It is far better to use red
Cyclopedia of heating, plumbing and sanitation; a complete reference work . Fig. 55. Air Valve. ^siri7^ inside the bolts. To describe a tee, al-ways give • the dimensionsof the run first and theoutlet last; for example, atee 6 inches at one end, 5inches at the other, with anoutlet at the side Z\ inches,would be known as a 6 by5 by 3^ tee. Expansible noat. Pig. 56. Air Valve. A tee with the outlet larger than the openings on the run, is known 360 STEAM AND HOT WATER FITTING 43 as a bullhead tee. Tees with all three openings of the same size areknown as straight tees. It is far better to use reducing sockets or reducing elbows andtees, in place of straight tees with bushings. Hangers. Pipes up to 4 inches diameter inclusive are commonlysuspended by malleable-iron hang-ers, one type of which is shown inFig. 44, with a gimlet point on therod, abeam clamp being substituted
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