Document MGpyXgQ6ppDn84nOo8NQ5rj2V

FILE NAME: Exxon (EXX) DATE: 1958 DOC#: EXX015 DOCUMENT DESCRIPTION: Unpublished Internal Report  isrrass'As KmaiALs rc&n su u rroscrssxt tzuzd usss ' KT3project io . toa ' ^ --*' :-% `v i^ A -jErj^rf^rfeajgirgjp>^>; __(iT^SSr? . .. , _-_:^-^--.45V.<' ^ rXcrlr iJ*cb*ry, 1958, the "Wald Coordination Depertainit established a ecwedttee ^ . ^ t d develop the best nrthod ad materials Tor insulating steam traced piping, . i^^Tbii'JUrthanle^ Technical"Service Dspartssnt coordinated thia investigation. ` review Is complete cad this memorandum contains suanery of the ecsmdttee" "" Esygid the stock of rigid Insulation to include the 1m s required to ._ insulate steam traced lines Calcium Hieste or Qnibestoa ere equally' '-For several Tears, sponge felt, laminated asbestos paper, has been sed to ` .^\ -.- ` ^ S ; V Insulate 11 steaa traced lines in the Eefinery. Sponge felt, however, la soft : f;and eaailr daaaged."Tn addition. It is tore expensive than severs! other materials. "'r*'"'L*Darina the investigation, four ether tv-no* of ineulation were evaluated. ...... Since both raterials hare the sane disadvantage as sponge felt, l.s., they ' are soft and easily ruined by foot traffie, they were not considered _ v . . v , < Pnlbestos aod Calcium Silicate . ............... ^ ';bnlbestos and calcium silicate are rigid materials manufactured In half ' ij"vsections for pips end a variety of other ahapss for valves end fittings* ^....Duibestos fabricated ells and calclun silicate pipe insulation are presently l^rlCin stock for insulating non-steam traced lines. Since both products are __ 5> . **5*c*^*^7 equal with regard to installation procedure, material costa, * 'J^lV-.V^and most physical properties, they nsy be used interchangeably. However, Pnlbeetoe is stropger; and in larger eltea tdiere breakage is a problem, additional experience nay prove it superior to calcium silicate. Both '^/materials bar three advantages over sponge felt insulations "y* \ 1.' 1D$ to 2C$ lower installation costs ' r 2. '10$ to 30$ lower material costs ..-ftij-v-r.^.Eor these reasons, Onibsatos or calcium silicate are recommended as stock . - " V - - i nsulation for steam traced lines. * ... _ \ -T ; -SV '; c a ;|