Document v61jNakgjBrYR11XG8Dnk0y4Z

.II'. :< ;e , y U. CO J mo'" y.r : / I"-- ot. .oul 't. i C' r tjy i "'..a *'-r:; 1 r.trt:'..: : oir.t Vicoau.-r.- <v t'.c ir. :.i." of : :-.j : ; rcl'l Tt: selecting the ee-rrcct Jrrui-K imp :..~.te--ja:, e ?;!t :> rhoul.i he giver tc ir.culo' ">r o which ;vr ~.t than others whore the lire or iv.v.j t ri !. I a e-v. to nheck cr' ac-racim. ''erh f.r.a r,:-.v: -.r a of insulating r.'.terinis which ear. Irt-.r *r w*t ortn: ho eh nn:i rs'eras ; on. The type of finish a. .-lied i vw the 'nsuitt`or. con nssi3t in reduction o' .11 v.rc due t' chock r r 5or.. elvstos cloth or :>.n oltr ir.n..'. Jacket ti^irh over *..! 'rruIntirn vili withstand rare shock and nbr.vior. than r.orr.r1 finishing materials;. ?. Chemical "xyesure Generally, insulation products rrc not putj'vt. to chemical reactions; however, this aust on cheeked in severe service areas. The insulation c herald Or aoic to stand u;> in it3 chemical environment. The type cf finish . 1 icd over the ineulotior. will kcc;; cut dct.rirr.wr.tal cr.ceilcnl iur.es or spills if selected properly. G. Location and Decree of Tryosurc to V'cathcr Generally, outdoor conditions arc acre severe than indoor conditions since sun, wind, an.: rain can destroy unprotected Insulation. The finish must be.able to ''take it.-' iiormnlly, asphults, Elastic, or roofing felts are used for outdoor appli cations ar.d canvas for indoors. 9- Reduction in Operating Cost Siroctud Reduction In operating cost expected must be considered when selecting Insulation for a Jo'c. The thicker the insulation, the loss the hoot loss, it is possible to furnish steam through cn uninsulated line to u piece of c at* pi'ent but the heat loss would be great. The thickness of insulation must be selected so that the reduct'qn in operating coot expected is greater than the cost of insulating the line or equipment. oUp 0900028