Re: MECHANICAL PIGGING OF HEATER LINES

What if i have expansion bellows in my line which is to be pigged . Do i need to do anything about these bellows while performing pigging operation?
Regards
Sachin

---------------------- Forwarded by Sachin Bapat/JAMNAGAR/RIL on 09/26/2002
10:22 AM ---------------------------

Sachin Bapat
09/26/2002 04:31 AM

To: <a href="/group/PipingDesign/post?postID=7TGZzVopcbNJOkj8TdH_9doZZN_v0Vj1JTBKkvKHhyAoAyK-5mCQF5IUurT1FJlR-k3H4GobqHpD5ms8iYVU9MLzJrTvMSk">PipingDesign@yahoogroups.com</a> cc:
Subject: Re: [PipingDesign] MECHANICAL PIGGING OF HEATER LINES

        (Document link: Sachin Bapat)

Can any of team members tell me the procedure for mechanical pigging of heater lines. I am specially interested in knowing the flow rate / velocity of water jet to be used for pigging of 6" lines. We are using 6" A335 P11 decoking lines after elbow reversal for pig launching & recieving . These lines have spring hangers in them . Do we need to lock these spring hangers during pigging operation or any other precautions to be taken during pigging. Please tell me some of companies involved in pigging business, their websites etc.
Regards
Sachin Received on Thu Sep 26 00:58:00 2002