Document BRey6zYYL3xqobJx51k41Rrww
PLAINTIFF'S EXHIBIT
MONO <86
P .vf' '&
BECHTEL CORPORATION
INTER OFFICE MEMORANDUM
o< January 10, 1962
? G. L. Jobnsen w/attach
Capiat to W. B. Hem' i B. M. Tluit G. B. Hill w/attach C. G. Tuller P, M. Passann w/attach L. T. Tuttla w/attach
om W. c. East
0Dt. '
Refinery & Che*leal Construction Alvin, Texas
ubyecl.
Job 3375 Chocolate Bayou Reiuwry Insulation Specifications
We now have both Insula several weeks we have had many discussions of specifications, all leading up co correcting a one alnor differences of opinion. This memo is being writ Can co bring you up-to-date on items that have been discussed here. All of these have been reviewed with the client and they are in agreement pro viding you have no objection. We shall list below the changes we wleh to make
1. Precast Calcium Silicate Elbows One of the subcontractors has expressed e desire to use premoldsd cssi elbows for reasons of operating efficiency. We have no objection providing there ie no additional cost to us. Since we supply insulation materials, we will work out the details of purchase and have indicated our intention to approve the use of this material.
2. Pop Mvits in place of metal screws. Hot pemlcted on cold insulation jackets. We have no objection to use of pop rivits on hot insulation jackets provided both subcontractors use the sane method. We have re quest Ion that the two subcontractors gat together on this issue and present thalr final recommendation.
3. Hostle flashing. All of us agree that the present flashing design for hot equipment is Inpracclcal. We propose an asbestos cloth collar stapled to the insulation and wrapped at the nossla neck with 16 gauge s.s. wire. Weathercoetlng of Lion Oil mastic and glass fabric finishes the installation Sac attschad sketch.
Kxpand-E-Strap for Bot equipment. Sines we have oo aluminum jacket on vessels, Che Expcnd-E-Strap for the outer Insulation will present an uofaverabla appearance under the weather coat, la actual practlca thars art ouly a fa*- pieces of equipment in each plant whera Che combination of operating temperature and girth dimension requires Expand-E-Straps. We propose to limit the use of Expand-R-Btraps to those ceses where it is required mechanically.
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w thie **>*:
ImUtlM and * pe ter*n on th* jgefeet.
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thauld b secured with knit, not wire, ii prtp ce iim iUUUm
wire fas securing all bet plpa Insulation both iMMt and wur layers ttW' ~
9" concert. Vsc x 0.015 etalalasa steel banda on 9" oaauri t* iMf^ ^
{It far eh off*plot weather coating.
Spiral vranolnx iUm fiber. *11 of ua egrae that spiral wrapping ic net practical o', large equipment. Wa will oat nay spirally; bat will Maintain the 1" overlap that conplylng with the lataat of the aped fleet lone.
iff, iMfilfttottlq
4.301 change banda to 9" x 0,013" 4.302 change banda to V x 0,013" 5.1 change to flat baada at 9" eeatera 5.2 change baada to V * 0.015" 5.4 -change banda to V . 5.013" 4.1 change to flat banda 4.3 change banda to V x 0.013" 7.2 replace banda with V* pfeaeure oeaetclve fiber glaaa ralnfercad tape
on 12" cantara. 7.3 change btnda loV* I.Ml" an 9" centera. 7.4 change banda to V x 0.015" on 9" centers. 7.5 ctenge baada to f * 0.00". * Add wards "where praetlaal" to laat
eentanea. 7.7 change banda to 4" a 0.013"
De.all on Page. 13. Change itan 7 to rand V' x 0.013" atainlaea *tecl trap.
Detail on Page 14. Change Item 5 to read V * 0.015" alunlnuc strap, Add note to ltea i 7 "where practical".
Detail on page 13. Change lean 5 to road V1 * 0.013" aLalaun (trap. Detail on paga 16. Subcontractor faala thia datall la awkward and will
provide hla own dealgn far our approval. Detail an page 18. Changa itan 5to road x 0.015" alunlnun atrap. Detail on paga 19. Change itan Ato read x 0.013" etalnleee ateal head. Detail on page 20. rv*~f itan 4to road x 0.013" atainloaa atool head. Detail an paga 21. Chauge Itan 4te read i* x 0.013" eceialeea ateal hand. Detail on peg* 22. Change item 4to rood V1 x 0.013" eteinUae acaal bead.
4.22 changa beads to x 0.013" 3.12 Halt uae of Sxpaod-g4trapa par our cownerta in number 4 above
3.13 eplral winding of reinforcing aenbreaa not practical. See mx esaannta
in nianber 6 above 3,21 sane consent a aa 3.12 above
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- 33.311 rn*t* trial*** kmI wire tics to ** cantors 3.312 cheap* tin fm >wi te lUicltu stool wire am 9" scaur*.
esunt* la mater f stevo. 3.32 mu scumki s J.312 atevc 5.331 clunga dmt nscal utte to per riwlt* 3.332 cteat* stainless stool vir* to V* % 0.013" *totalso# stool bates on
9" canter*. Dots 11 on pa( 9. latetl tota dotoil dsscvlted in antes 3 shore. So*
kotch oneloood Doto11 on p*to 10. >ano Moscont as detail on pot* 9. Detail am p*t* U. Cheat* itsn 3 to rood \n % 0.015" s colaloss ptool strap. Dotail o* pot* 12. Cbcngs icon* 3 sad 4 t rood V * 0.013" stolaloo*
stool strop. Detail on pat* 13. Chant* itn* 3 to rood f" * 0.013" stalnl*** stool strop. V* request teat yam rootcm dm* tenants t--Jtocoly sad odrls* us of your eoaeurranao ot yonr oarHost t--anloaco.
sncl. sketch /jew
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