Hot Tapping and In-service Weld

-Hot tapping is the technique used to attach a branch connection to a pipe while the system is in service, and then creating an opening in that pipe by drilling or cutting.

-While hot taps are most often done in piping system, they may also be done on pressure vessels and storage tanks to add nozzles.

-Hot tapping permits adding connections without depressurization or disruption of process operations.

-Hot tapping is also used to isolate pipe sections for maintenance by plugging the line, This prevents costly and potentially dangerous environmental hazards while allowing for continued operation.

-The Repair process shall follow ASME PCC -2

No.

Type

Format

Book Name

Edit.

Scope

Author(s)

Availability

1

Presentation

PDF

Pipeline Repair Methods

2009

This Presentation gives an overview on the different repair methods used in repairing damaged pipelines

Penspen

Upon Request

2

GL

PDF

Pipeline Repair Manual

2006

This manual outlines and describes known and commonly accepted techniques for pipeline repairs, with major emphasis on methods that can be applied to in-service pipelines.

Refer to section 3.7

Carl E. Jaske,

Brian O. Hart

William A. Bruce

Upon Request

3

GL

PDF

EEMUA 185 Guide for hot tapping on Piping and other equipment

2011

This Publication applies to hot tapping into metallic piping systems containing process fluids or their residues. Additionally, information is provided for special hot tapping applications such as on storage tanks. It covers the welding and cutting (drilling/trepanning) operations and other technical considerations, and gives guidance on how to carry out a safe operation

EEMUA

Upon Request

4

GL

PDF

Fittings welding On live pipelines

1993

A general overview of a tapping and plugging Operation which may be carried out to isolate a section of line for Repairs or addition without interruption of service

also this document covers: fitting design and manufacture, welding the fitting to the line (under pressure) and inspection of the welds

Ir. B. LOUIS

Upon Request

5

S

PDF

BS 6990 Welding on steel pipes containing process fluids or their residuals

1989

This code covers operations relating to and involving arc welding on ferritic steel and austenitic stainless steel land or offshore pipelines and process plant pipework which contain or have contained a process fluid and which are at least 5 mm thick. It gives details of procedures prior to, during and after all these operations

BS

Upon Request

6

S

PDF

API 653 ST Tank Inspection, Repair, Alteration, and Reconstruction

2018

The Standard provides minimum requirements for maintaining the integrity of such tanks after they have been placed in service and addresses inspection, repair, alteration, relocation, and reconstruction.

Refer to section 9.14

API

Upon Request

7

S

PDF

API 570 Piping Inspection, Rating, Repair and Alteration

2017

API 570 covers inspection, rating, repair, and alteration procedures for metallic and fiberglass-reinforced plastic (FRP) piping systems and their associated pressure relieving devices that have been placed in service

Refer to section 8.2

API

Upon Request

8

S

PDF

ASME PCC-2 Repair of Pressure Equipment and Piping

2018

This Standard provides methods for repair of equipment, piping, pipelines, and associated ancillary equipment within the scope of ASME Pressure Technology Codes and Standards after they have been placed in service.

Refer to Article 216

ASME

Upon Request

9

RP

PDF

API RP 2200 Repairing Hazardous Liquid Pipelines

2015

This recommended practice (RP) discusses guidelines for safe practices while repairing in-service pipelines for hazardous liquids

Refer to section 8.1.3

API

Upon Request

10

RP

PDF

API RP 2201 Safe Hot Tapping Practices in the Petroleum & Petrochemical Industries

2003

This publication covers the safety aspects to be considered before and during hot tapping on in-service piping or equipment

API

Upon Request

11

RP

PDF

API RP 2201 Procedures for welding  of hot tapping on equipment in service

1995

This publication covers the safety aspects to be considered when hot tapping or when welding without hot tapping on in service piping or equipment

API

Upon Request

12

RP

PDF

DNVGL RP F113 Pipeline subsea repair

2016

The RP provides guidance on pipeline repair methods such as pipeline hot tapping and above water tie-in.

In addition, recommendations and guidelines on pipeline preparedness strategies, pipeline damage assessments and testing are given in this document

Refer to section 9

DNVGL

Upon Request

13

HB

PDF

Hot Tapping

  N/A

This Hand book provides a quick understanding of the concept of Hot tapping

 N/A 

Free

14

HB

PDF

Process Industry Piping System Maintenance and Repair

 N/A 

This book gives an outlines an overview to the in service welding and Hot tapping solutions

T.D Williamson Inc

Free

15

Paper

PDF

Hot Tapping on a subsea pipeline

1995

This document outlines an illustration of Hot tapping on subsea pipelines

G Hutt

Free

16

Paper

PDF

A Simple Approach to Hot Tap and Repair Sleeve Welding

2005

A simple approach to hot tap and repair sleeve welding that can be implemented on an individual operating company basis is outlined.

Bruce W A

Upon Request