Document zzeYaVJb90kavgYvOvojwZBdm

(conoco) Interoffice Communication To J. R. Holcomb From K. G. McLeod Date September 20, 1978 Subject S-222 Wet Vent Connection In keeping with the plant's philosophy on vent headers and the plant's pro gram to reduce VCM and EDC exposure, the vinyl column blowdown drum (S-222) must be connected to the wet vent header. This can be achieved as shown in the attached drawing. Due to the successful history of carbon steel in this service, it is re commended that A2-3 spec, be used in selecting materials for this project. In addition, the resistoflex clamp valve in the furan wet vent header line allows isolation of the carbon steel piping should repairs be required in the future. If you have any comments or questions, please contact me. is Enc CC + enc: JAD-GLF-J0G-HDG-JRH(3)~PE CUH 000002087 .KGM^_______ DATE.^^l^^r by CHKD. BYDATE.................. SUBJECT SHEET NO.. JOB NO_____ OF,