Monday, January 17, 2022

Re: [MW:32758] RE: 32751] Selection of Pigs For 30" Gas Pipeline

In ref bto TDW documents, you may consider pig & brush type as per gas / fluid process variables, bends & piping fittings / components specifications. 
1. Steel wire brushes
2. Scrapper discs
3. Urethane cups
4. Urethane blades
Magnetic pig
Pitboss
Vantage V 
Bidirectional pig
Vintage V batching
SBN 4A, LBN 4A
Inflatable
SG2
LG2
Ultra pig allurathane
Black diamond composite wrap
Above mentioned pigs are suitable for 30"dia. 


TDW UK Tel. No. +441793603600
USA Tel. No. 18005717447, 19184475400

Chandrakant Mohikar.
Consultant: Integrated Project Management Systems. (IPMS). Energy and Infrastructure
Contact: + 91 84460 79514
Infra Academy.
https://tinyurl.com/InfraAcademy

On Mon, 17 Jan 2022, 09:29 , <pgoswami@rogers.com> wrote:

Pigging is a very special process. You need to talk to the companies specialized in this discipline. TDW specializes in this area. You may contact them, for specific services in Bangladesh, if they provide so. I know they've a big presence in India. This presentation discusses with some interesting issues, related to pigging .

Hope it will help you.

 

Thanks.

 

Pradip Goswami.P.Eng, IWE.

Independent Consulting Welding & Metallurgical Engineering Specialist

Consultant: SNC Lavalin Inc. (Nuclear &Non-Nuclear)

Saudi Aramco Approved Designated Project Welding Engineer (DPWR)

Qatar Petroleum Approved, SME-Materials & Corrosion Engineering.

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgoswami@rogers.com,pradip.goswami@gmail.com

Cell/Whasapp:1-905-9793232

 

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of Engr. Asif Chowdhury
Sent: January 16, 2022 8:55 AM
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:32751] Selection of Pigs For 30" Gas Pipeline

 

Dear Experts,

 

Hope everyone is doing great.

 

In a cross-country gas pipeline project over a bridge deck we have almost completed ou welding activities and right now we are facing problem in selection of Pigs for that pipeline. For your information, the pipeline is about approximately 6 Km in length consisting of 14 nos U-loop and 06 Nos W-loop and 01 nos inlet and 01 nos outlet loops. Outer Dia of Pipeline is about 762 mm with a wall thickness of 25.4 mm.

 

The elbows in the loops are 1.5D 90 Degree LR BW elbows.

 

The entire pipeline has some pipe miter joints included but the angle of miter falls between the range of 2.5 Degree to  5 Degree.

 

 The normal pigs we use for our cross-country pipeline having 3D & 5D Bends are not suitable here.

 

As I have limited knowledge on pigging, hope some expert comment can help me to select the appropriate pig and finalize procurement for my project in Bangladesh.

 

 

With best regards,

Asif

PM

PMB-NGP Project

WhatsApp: +8801925-884133

The Royal Utilisation Services (Pvt.) Ltd.

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