Document qdp1RKa608dd3ag709Oa4Mkq

_ Begins on page 124 $ j R/M distributor solves tank-truck pump packing problem... min- man eves. imon Idin" > the with inery i. tz in your i few this * got 1 the disvour i do my," :tte. oom got 'iped what 5 he I've roke his iard cost an:artiuke ired red butone rass was ^checkered vest and lit a long black yXTcigar. Blowing a cloud of smoke tolj/. H-ard the ceiling, he suddenly roared jn his foghorn voice, "Bilgewater on that fishy oil theory you sea pry lawyers dreamed up." "What?" yelled the pump man, leaping from his seat, "you mean to tgay those seized vanes were not caused ^by the oil?" V-'V" "Not caused by the oil, but by lack of oil," corrected Marmaduke em- * phatically. \v "That's doubletalk," exploded the 'p- pump representative. "The working fluid in those pumps does the lubri*5'eating, so if the pump shoves enough ' fluid through to work the presses ; there can't be a lack of oil!" y "Those pumps were shipshape for five months," rumbled Marmaduke calmly. "Then suddenly two weeks ago the first pump sailed into a nor'easter and snapped its mainmast. Why? Because that was the first bit of foul weather of the voyage. Why i do you think I left my warm bunk on "the second dogwatch and dropped _v'anchor here before the plant started this morning?" "Everybody's at sea and I'm getjpyyting seasick," Getz piped up impa tiently, getting redder by the minute. f^LTll bite, why did you set sail so g?early?" "Because I wanted to eyeball how Rgytyou start your hydraulic machinery gjr.when the mercury is hugging zero," ^answered the big man. "I'll bet your ^|||cooling water from Lake Michigan is "vbelow 40 F. But the presses weren't started until 8 am. And I noticed your men immediately turned on .North Pole water for the heat exchangers instead of waiting for the ?- hydraulic oil to warm up and then turn the water on gradually. iC "So what happened? The cold oil B','iwas like molasses. The pumps had to ^swallow it in gulps. That left pockets Vf vacuum in the oil as it ruptured lrhile trying to sail through the pump. ult? Cavitation, causing the pump ijanes to run dry at times. Under load your poorly lubricated vanes seized the shaft broke." "Are you kidding?" piped up the foreman. "How can you prove the oil 63 J/OWER MARCH 1963 ... recommends R/M 380846 set -- now over 13 months in chemical service Frequent failure of pump packings on chemical-carrying tank trucks was a serious problem at Chemical Leaman Tank Lines, Inc., Downingtown, Pa. A packing was needed that could withstand the severe service conditions encountered. Finally an authorized R/M packing distributor, John D. Rohrbach Co., Lancaster, Pa., was consulted. In cooperation with R/M engineers, Rohrbach recommended a combination of two R/M Big 7 Packings: R/M 380, a blue crocidolite asbestos fiber packing impregnated with a chemical resistant lubricant; and R/M 846, a Teflon* square- braided packing. ' This combination has given excellent service handling many chemicals, including resins, acids, caustics, liquid glass, ether and plasticizers. The orisinal set has been in continuous service for over 13 months. Besides giving you fast service right from his stock, vour authorized R/M packing distributor can make Big 7 recommendations for all -your maintenance packing requirements. Ask him for a copy of .the' R-/M Big 7 Selection Chart. Or write to Packing Division, Raybestos-Manhattan, Inc., Passaic, N.J. * A Du Pont trademark PLAINTIFFS EXHIBIT T-25 1 MECHANICAL PACKINGS GASKET MATERIALS SPECIALTY PRODUCTS Raybestos-Manhattan, Inc, For more facts circle 298 on Reader Service card, p 99 131 i 11 i !t 1 :!U il i i