Illinois Malleable Iron Co. · Illinois Malleable Iron Co. · leaf 313
1.00 W2 32.00 36.00 135.00 1000 42 14 2 2250 % ^ 191.00 W2 36.00 40.00 150.00 750 48 8 3 1800 Va ^ 168.00 940 48 10 3 2100 Va ^ 188.00 1130 48 12 3 2400 Va ^ 209.00 1300 48 14 3 2700 Va iV 230.00 Regularly furnished with pressed steel flanges at openings. Extra for manhole in head, 15.00, Extra for… … Fig. 7812A Tested to 125 pounds air pressure and guaranteed for working pressures not exceed-ing 75 pounds to the square inch. Heads dished to a radius equal the diameter of theshell. Longitudinal seams double riveted, lap joints. Furnished regularly with pressedsteel flanges at all openings, as…
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