. American stationary engineering; a practical work which begins at the boiler room and takes in the whole power plant. istinguish them. Fig. 120 represents another jointin wroughtirou piping known as the union , composed ofthree pieces of the washer. Unions are also made with groundjoints, and the washer dispensed with. Radiator valves arenow generally connected by them, but if the hole in the radia-tor is not tapped accurately, the union when drawn up willnot be tight, or if tight, the valve will not be straight. Fig. 121 shows right and left threaded nipple connectingelbow and tee with wrou
. American stationary engineering; a practical work which begins at the boiler room and takes in the whole power plant. istinguish them. Fig. 120 represents another jointin wroughtirou piping known as the union , composed ofthree pieces of the washer. Unions are also made with groundjoints, and the washer dispensed with. Radiator valves arenow generally connected by them, but if the hole in the radia-tor is not tapped accurately, the union when drawn up willnot be tight, or if tight, the valve will not be straight. Fig. 121 shows right and left threaded nipple connectingelbow and tee with wrought-iron pipes. The flange union, Fig. 122, is another joint generally usedon wrought-iron pipes above 4 or 5 inches in diameter in mak-ing connections to valves, etc., and on smaller pipes in posi-tions where is is a convenient joint. This joint consists of twocircular cast-iron flanges with the requisite number of holes forbolts, and central hole tapped tapered to receive thread of abutting faces of the flanges are generally turned and theholding bolts fitted into the holes. STEAM AND HOT WATER
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsteamen, bookyear1917
