This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899 edition. Excerpt: ...length for welding, as shown. The dip-pipe may be made of any length desired; our standard length is 14 inches below the face of the lower flange. This line of valves is made ENTIRELY OF IRON for use with cyanide of potassium, hot gases, extra strong solutions of alkalies and other substances which attack bronze or babbitt metal. The smaller sizes have screw tops; the larger sizes have bolt tops, put together without gaskets. The stuffing-boxes of valves 4 inches and smaller have screw packing nuts; larger sizes have bolt followers. All boxes are packed ready for use. The spindles are tinned above the thrust collar to prevent corrosion. The valves are suitable for a working pressure of 200 pounds per square inch and have a factor of safety amply large to cover the ordinary stresses of the service. If desired they can be furnished with sliding stem and lever at an additional cost. Prices for these valves are the same as the ammonia valves in List 60., FOR COMPANION FLANGES SEE LIST Tl ALL-IRON ANCLE CATE VALVES FOR HOT CAS, ALKALIES ETC. LIST NO. 67 INSIDE OR OUTSIDE SCREW SCREW OR FLANGE ENDS SOLID IRON SEATS AND IRON MOUNTINGS 200 POUNDS WORKING PRESSURE This line of valves is made ENTIRELY OF IRON for use with cyanide of potassium, hot gases, extra strong solutions of alkalies and other substances which attack bronze or babbitt metal. The special feature is the angle end, which enables the valve to replace an elbow and straight valve. Valves 2 inches and smaller have screw tops; larger sizes have bolt tops, put together without gaskets. The stuffingboxes of inside screw valves, 4 inches and less in size, have screw packing-nuts; all other valves have bolt follower stuffingboxes. All boxes are packed ready for use. The spindles are...