RE: Hi-Lo Piping FitUp

that is actually my first reaction Karl. Pullout the buterfly, do a back gouge then back weld the root. Then it hiit me - its a butterfly valve. The face to face dimension for 24" is little over 6 inches . Xray actually showed a lot of porosity. It was rejected after the film was develop (following morning). My point is that the QC inspector should have not allowed the root pass to proceed (tack weld is essential during the fitup bu could be easily ground out if the fitup is not proper).

> ----------
> From: Karl Viator[SMTP:kdviator@yahoo.com]
> Reply To: <a href="/group/PipingDesign/post?postID=RX2fZi4csDWpxP3S1WjaEy79UtW0DRkev2Uab130QqQ_LTLV3m88fjXHCSuBam_7zwSaa6TRGR4uuGF3PUKMuxLwOw">PipingDesign@yahoogroups.com</a>
> Sent: 22 October, 2001 1:04 PM
> To: <a href="/group/PipingDesign/post?postID=RX2fZi4csDWpxP3S1WjaEy79UtW0DRkev2Uab130QqQ_LTLV3m88fjXHCSuBam_7zwSaa6TRGR4uuGF3PUKMuxLwOw">PipingDesign@yahoogroups.com</a>
> Subject: Re: [PipingDesign] Hi-Lo Piping FitUp
>
> More than likely xray was rejected because of shade
> line, or nonfusion because of Hi-Lo fit up. Forman
> should have a chat with xray or inspector to determine
> what it is. My guess is shade line, or nonfusion. Easy
> fix would be to unflange and back weld, may need to
> grind down bead before back welding to prevent excess.
> Also if welder grind bead down may find defect.
>
Received on Mon Oct 22 06:33:00 2001