Chemical Engineering - Shell Dep 31380112 Piping Classes - Refining and Chemicals

MANUAL

PIPING CLASSES - REFINING AND CHEMICALS

DEP 31.38.01.12-Gen.  April 2003

DESIGN AND ENGINEERING PRACTICE

This document is restricted. Neither the whole nor any part of this document may be disclosed to any third party without the prior written consent of Shell Global Solutions International B.V. and Shell International Exploration and Production B.V., The Netherlands. The copyright of this document is vested in these companies. All rights reserved. Neither the whole nor any part of this document may be reproduced, stored in any retrieval system or transmitted in any form or by any means (electronic, mechanical, reprographic, recording or otherwise) without the prior written consent of the copyright owners.

DEP 31.38.01.12-Gen.  April 2003 Page 2 PREFACE DEPs (Design and Engineering Practice) publications publications reflect the views, at the time of publication, of: Shell Global Solutions International B.V. (Shell GSI) and Shell International Exploration and Production B.V. (SIEP) and Shell International Chemicals B.V. (SIC) and other Service Companies. They are based on the experience acquired during their involvement with the design, construction, operation and maintenance of processing units and facilities, and they are supplemented with the experience of Group Operating companies. Where appropriate they are based on, or reference is made to, international, regional, national and industry standards. The objective is to set the recommended standard for good design and engineering practice applied by Group companies operating an oil refinery, gas handling installation, chemical plant, oil and gas production facility, or any other such facility, and thereby to achieve maximum technical and economic benefit from standardization. The information set forth in these publications is provided to users for their consideration and decision to implement. This is of particular importance where DEPs may not cover every requirement or diversity of condition at each locality. The system of DEPs is expected to be sufficiently flexible to allow individual operating companies to adapt the information set forth in DEPs to their own environment and requirements. When Contractors or Manufacturers/Suppliers Manufacturers/Suppliers use DEPs they shall be solely responsible for the quality of work and the attainment of the required design and engineering standards. In particular, for those requirements not specifically covered, the Principal will expect them to follow those design and engineering practices which will achieve the same level of integrity as reflected in the DEPs. If in doubt, the Contractor or Manufacturer/Supplier shall, without detracting from his own responsibility, consult the Principal or its technical advisor. The right to use DEPs is granted by Shell GSI, SIEP or SIC, in most cases under Service Agreements primarily with companies of the Royal Dutch/Shell Dutch/Shell Group and other companies receiving technical advice and services from Shell GSI, SIEP, SIC or another Group Service Company. Consequently, three categories of users of DEPs can be distinguished: 1)

Operating companies having a Service Agreement with Shell GSI, SIEP, SIC or other Service Company. Company. The use of DEPs by these operating companies is subject in all respects to the terms and conditions of the relevant Service Agreement.

2)

Other parties who are authorized to use DEPs subject to appropriate contractual arrangements (whether as part of a Service Agreement or otherwise). otherwise).

3)

Contractors/subcontractors Contractors/subcontractors and Manufacturers/Suppliers Manufacturers/Suppliers under a contract with users referred to under 1) or 2) which requires that tenders for projects, materials supplied or - generally - work performed on behalf of the said users comply with the relevant standards.

Subject to any particular terms and conditions as may be set forth in specific agreements with users, Shell GSI, SIEP and SIC disclaim any liability of whatsoever nature for any damage (including injury or death) suff ered by any company or person whomsoever as a result of or in connection with the use, application or implementation of any DEP, combination of DEPs or any part thereof, even if it is wholly or partly caused by negligence on the part of Shell GSI, SIEP or other Service Company. The benefit of this disclaimer shall inure in all respects to Shell GSI, SIEP, SIC and/or any company affiliated to these companies that m ay issue DEPs or require the use of DEPs. Without prejudice to any specific terms in respect of confidentiality under relevant contractual arrangements, DEPs shall not, without the prior written consent of Shell GSI and SIEP, be disclosed by users to any company or person whomsoever and the DEPs shall be used exclusively for the purpose for which they have been provided to the user. They shall be returned after use, including any copies which shall only be made by users with the express prior written consent of Shell GSI, SIEP or SIC. The copyright of DEPs vests in Shell GSI and SIEP. Users shall arrange for DEPs to be held in safe custody and Shell GSI, SIEP or SIC may at any time require information satisfactory to them in order to ascertain how users implement this requirement.  All administrative administrative queries should should be directed to the DEP DEP Administrator Administrator in Shell GSI.

DEP 31.38.01.12-Gen.  April 2003 Page 3 TABLE OF CONTENTS 1. 1.1 1.2 1.3 1.4 1.5

INTRODUCTION ........................................................................................................4 SCOPE........................................................................................................................4 DISTRIBUTION, INTENDED USE AND REGULATORY CONSIDERATIONS .........4 DEFINITIONS .............................................................................................................4 REFERENCES ...........................................................................................................5 SUMMARY OF CHANGES SINCE THE LAST REVISION ........................................6

2.

SUMMARY OF ISSUED PIPING CLASSES............................................................11

3.

SERVICE INDEX ......................................................................................................13

4.

INDEX OF PIPING CLASSES..................................................................................16

5.

PIPING CLASSES ....................................................................................................21

DEP 31.38.01.12-Gen.  April 2003 Page 4 1.

INTRODUCTION

1.1

SCOPE This DEP contains piping classes which have been developed for use in refineries and chemical plants. The basis of design of the piping classes is given in DEP 31.38.01.10Gen. This is a revision of the DEP of the same number dated January 2000; a summary of the changes since the last revision is included in (1.5). The general requirements for piping systems are specified in DEP 31.38.01.11-Gen. Piping classes developed primarily for exploration and production facilities are contained in DEP 31.38.01.15-Gen.

1.2

DISTRIBUTION, INTENDED USE AND REGULATORY CONSIDERATIONS Unless otherwise authorised by Shell GSI and SIEP, the distribution of this DEP is confined to companies forming part of or managed by the Royal Dutch/Shell Group, and to Contractors nominated by them (i.e. the distribution code is "C", as defined in DEP 00.00.05.05-Gen.). This DEP is intended for use in oil refineries, chemical plants, gas plants and supply/marketing installations, and where applicable, onshore exploration and production facilities (all within the property limits as defined in ASME B31.3, Section 300.1). If national and/or local regulations exist in which some of the requirements may be more stringent than in this DEP, the Contractor shall determine by careful scrutiny which of the requirements are the more stringent and which combination of requirements will be acceptable as regards safety, economic and legal aspects. In all cases the Contractor shall inform the Principal of any deviation from the requirements of this DEP which is considered to be necessary in order to comply with national and/or local regulations. The Principal may then negotiate with the Authorities concerned with the object of obtaining agreement to follow this DEP as closely as possible.

1.3

DEFINITIONS

1.3.1

General definitions The Contractor   is the party which carries out all or part of the design, engineering, procurement, construction, commissioning or management of a project or operation of a facility. The Principal may undertake all or part of the duties of the Contractor. The Principal is the party which initiates, and ultimately pays for, the project. The Principal will generally specify the technical requirements. The Principal may also include an agent or consultant, authorised to act for the Principal. The word shall indicates a requirement. The word should indicates a recommendation.

1.3.2

Specific definitions Hydrogen service

service in which the process stream contains hydrogen at a partial pressure of 7 bar (abs) and higher.

Low temperature

metal temperature of 0 ºC and lower.

Piping class

assembly of piping components in a piping system, suitable for a defined service within design limits.

Post Weld Heat Treatment

heat treatment carried out after welding to reduce residual stresses and to temper hardened microstructures created by welding.

DEP 31.38.01.12-Gen.  April 2003 Page 5 1.4

REFERENCES In this DEP, reference is made to the following publications: NOTES:

1. Unless specifically designated by date, the latest edition of each publication shall be used, together with any amendments/supplements/revisions thereto. 2. Excluded from this list are the standards referenced in the piping classes themselves, a list of which would be too extensive.

SHELL STANDARDS DEP index

DEP 00.00.05.05-Gen.

Metallic materials - prevention of brittle fracture

DEP 30.10.02.31-Gen.

Gaseous oxygen systems

DEP 31.10.11.31-Gen

Piping classes - basis of design

DEP 31.38.01.10-Gen.

Piping - general requirements

DEP 31.38.01.11-Gen.

Piping classes - exploration and production

DEP 31.38.01.15-Gen.

GRP Pipelines and piping systems (amendments/supplements to UKOOA)

DEP 31.40.10.19-Gen.

 Active fire protection systems and equipment for onshore facilities

DEP 80.47.10.31-Gen.

AMERICAN STANDARDS Process piping Issued by:  American Society of Mechanical Engineers 345 East 47th Street New York NY 10017 USA

ASME B31.3 2002 edition

DEP 31.38.01.12-Gen.  April 2003 Page 6 1.5

SUMMARY OF CHANGES SINCE THE LAST REVISION Piping class

Rev. Letter

Rev. Date

11011

C

03/03

a2, a4, a6, c2, f1, j2, k2

11015

C

03/03

a2, a4, a6, c2, j2, k2

11021

C

03/03

a2, a4, a6, c2, f1, j2, k2

11023

D

03/03

a2, a4, a6, c2, j2, k1, k2, k4, k5, k6

11025

D

03/03

a1, a2, a4, a6, c2, j2, k1, k3, k4, k5, k6

11031

D

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

11041

B

03/03

a2, a4, a6, c2, f1, j2, k2

11042

C

03/03

a2, a4, a6, c2, j2, k2

11055

C

03/03

a2, a4, a6, c2, j2, k2

11071

A

03/03

new

rev O issued for operating unit

11076

A

03/03

new

rev O issued for operating unit

11091

C

03/03

a2, a7, b3, c2, c6, c7, j3

11125

C

03/03

a2, a4, a6, c2, j2, k2

11126

C

03/03

a2, a4, a6, c2, j2, k2

11172

D

03/03

a2, a4, a6, c2, j2, k2

11173

C

03/03

a2, a4, a6, c2, j2, k1, k2, k4, k5, k6

11174

O

03/03

new

11175

C

03/03

a2, a4, a6, c2, j2, k2

11176

C

03/03

a2, a4, a6, c2, j2, k2

11180

O

03/03

new

11201

C

03/03

a2, a4, a6, c2, e1, f1, j2, k3

11261

D

03/03

a2, a4, a6, c2, f1, j2, k2, k4, k5, k6

11300

D

03/03

a2, a4, a6, c2, j2, k1, k2, k4, k5, k6

11372

D

03/03

a2, a4, a6, c2, j2, k1, k2, k4, k5, k6

11373

D

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

11374

O

03/03

new

12040

E

03/03

a2, a4, a6, c2, j2, k2

12080

E

03/03

a2, a4, a6, c2, j2, k2

12090

O

03/03

new

13011

D

03/03

a2, a4, a6, c2, j2, k2

13021

D

03/03

a2, a4, a6, c2, j2, k2

13031

D

03/03

a2, a4, a6, c2, j2, k2

13050

O

03/03

new

13091

D

03/03

a2, a4, a6, c2, c7, e1, j2, k2

13100

C

03/03

a2, a4, a6, c2, j2, k1, k2, k4, k5, k6

15011

Revision notes (see bottom of table)

withdrawn

16021

C

03/03

a2, c2, c3, j2, k2

16071

D

03/03

a2, b1, c2, j2

17010

withdrawn

17011

O

03/03

new

17012

O

03/03

new

17015

O

03/03

new

 Additional description

material flanges/fittings withdrawn

replaced by pc 17011

17020

withdrawn

use equivalent cs pc

17030

withdrawn

use equivalent cs pc

17070

withdrawn

replaced by pc 17011

17075

withdrawn

replaced by pc 17015

17101

withdrawn

replaced by pc 17102

17102 17120

O

03/03

new withdrawn

replaced by pc 17121

DEP 31.38.01.12-Gen.  April 2003 Page 7 SUMMARY OF CHANGES SINCE THE LAST REVISION (continued) Piping class

17121

Rev. Letter

Rev. Date

O

03/03

17200 17201

Revision notes (see bottom of table)

new withdrawn

O

03/03

 Additional description

replaced by pc 17201

new

17210

withdrawn

replaced by pc 18160

17230

withdrawn

replaced by pc 17012

17240

O

06/00

17310

new withdrawn

17311

O

03/03

new

17320

B

03/03

h1, k3, k4

18011

D

03/03

a2, k3, k6

18081

D

03/03

a2, h1

18160

D

03/03

a2, a4, a6, k3

31011

C

03/03

a2, a4, a6, c2, j2, k2

31012

C

03/02

a2, a4, a6, c2, j2, k2

31013

C

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

31015

C

03/03

a2, a4, a6, c2, j2, k2

31021

C

03/03

a2, a4, a6, c2, j2, k2

31023

C

03/03

a2, a4, a6, c2, j2, k1, k2, k4, k5, k6

31025

C

03/03

a1, a2, a3, a6, c2, f1, j2, k1, k3, k4, k5, k6

31031

D

03/03

a2, a4, a6, c2, j2, k2

31041

B

03/03

a2, a4, a6, c2, j2, k2

31042

B

03/03

a2, a4, a6, c2, j2, k2

31055

C

03/03

a2, a4, a6, c2, j2, k2

31071

C

03/03

a2, a4, a6, c2, j2, k2, k5, k6

31076

C

03/03

a2, a4, a6, c2, j2, k2, k5, k6

31091

C

03/03

a2, a7, b3, c2, c6, c7, j3

31125

C

03/03

a2, a4, a6, c2, j2, k2

31126

C

03/03

a2, a4, a6, c2, j2, k2

31131

C

03/03

a2, a4, a6, c2, j2, k2

31160

B

03/03

a2, a4, a6, c2, j2, k2, k5

31172

D

03/03

a2, a4, a6, c2, f1, j2, k2

31173

D

03/03

a2, a4, a6, c2, j2, k1, k2, k4, k5, k6

31174

O

03/03

new

31175

C

03/03

a2, a4, a6, c2, j2, k2

31176

D

03/03

a2, a4, a6, c2, j2, k2

31180

O

03/03

new

31261

D

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

31271

C

03/03

a2, a5, c1c2, c5, d1, h1, j2, k1

31300

D

03/03

a2, a4, a6, c2, j2, k1, k2, k4, k5, k6

31310

B

03/03

a2, b3, c1c2, g1, h1, j2, k2

31372

C

03/03

a2, a4, a6, c2, j2, k1, k2, k4, k5, k6

31373

C

03/03

a2, a4, a6, c2, f1, j2, k2, k4, k5, k6

31374

O

03/03

new

32010

D

03/03

a2, a4, a6, c2, j2, k2

32011

A

03/03

new

32020

E

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

32021

D

03/03

a2, a4, a6, c2, c4, c5, j2, k3, k4, k5, k6

32040

E

03/03

a2, a4, a6, c2, j2, k2

32080

D

03/03

a2, a4, a6, c2, j2, k2

replaced by pc 17311

DEP 31.38.01.12-Gen.  April 2003 Page 8 SUMMARY OF CHANGES SINCE THE LAST REVISION (continued) Piping class

Rev. Letter

Rev. Date

Revision notes (see bottom of table)

32090

O

03/03

new

32110

D

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

32121

A

03/03

new

33011

D

03/03

a2, a4, a6, c2, j2, k2

33021

D

03/03

a2, a4, a6, c2, j2, k2

33031

D

03/03

a2, a4, a6, c2, j2, k2

33050

E

03/03

a2, a4, a6, b2, b3, c2, j2, k3

33055

D

03/03

a2, a4, a6, c2, c4, j2, k2, k4, k5, k6

33091

C

03/03

a2, a4, a6, c2, j2, k2

33100

B

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

36071

B

03/03

a2, c2, j2

36080

B

03/03

a2, c2, e1, h1, j2, k3

61011

D

03/03

a2, a4, a6, c2, j2, k2

61013

D

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

61015

D

03/03

a2, a4, a6, c2, j2, k2

61031

C

03/03

a2, a4, a6, c2, j2, k2

61041

C

03/03

a2, a4, a6, c2, j2, k2

61042

C

03/03

a2, a4, a6, c2, j2, k2

61055

D

03/03

a2, a4, a6, c2, j2, k2

61071

D

03/03

a2, a4, a6, c2, j2, k2, k5, k6

61076

D

03/03

a2, a4, a6, c2, j2, k2, k5, k6

 Additional description

rev O issued for operating unit

61172

renumbered

replaced by pc 61180

61173

renumbered

replaced by pc 61174

61174

O

03/03

new

61180

O

03/03

new

61261

D

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

61371

renumbered

61374

O

03/03

new

62010

E

03/03

a2, a4, a6, c2, e1, j2, k2

62011

A

03/03

new

62020

E

03/03

a2, a4, a6, c2, j2, k2, k5, k6

62021

A

03/03

new

62040

D

03/03

a2, a4, a6, c2, j2, k2

62090

O

03/03

new

62110

D

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

62120

D

03/03

a2, a4, a6, c2, c4, e1, j2, k2, k4, k5, k6

62121

A

03/03

new

63011

D

03/03

a2, a4, a6, b2, c2, j2, k2

63021

D

03/03

a2, a4, a6, b2, c2, j2, k2

63050

E

03/03

a2, a4, a6, c2, j2, k3

63055

D

03/03

a2, a4, a6, c2, c4, j1k2, k4, k5, k6

63090

D

03/03

a2, a4, a6, c2, j2, k2

91011

D

03/03

a2, a4, a6, c2, j2, k2

91015

D

03/03

a2, a4, a6, c2, j2, k2

91031

C

03/03

a2, a4, a6, c2, j2, k2

91041

C

03/03

a2, a4, a6, c2, j2, k2

91042

C

03/03

a2, a4, a6, c2, j2, k2,

91055

D

03/03

a2, a4, a6, c2, j2, k2

91071

D

03/03

a2, a4, a6, c2, j2, k2, k5, k6

replaced by pc 61374

rev O issued for operating unit rev O issued for operating unit

rev O issued for operating unit

DEP 31.38.01.12-Gen.  April 2003 Page 9 SUMMARY OF CHANGES SINCE THE LAST REVISION (continued) Piping class

91076

Rev. Letter

Rev. Date

O

03/03

91172

Revision notes (see bottom of table)

 Additional description

new renumbered

replaced by pc 91180

91180

O

03/03

new

91261

D

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

92010

E

03/03

a2, a4, a6, c2, j2, k2

92011

O

03/03

new

92020

E

03/03

a2, a4, a6, c2, j2, k2, k5, k6

92021

A

03/03

new

rev O issued for operating unit

92040

A

03/03

new

rev O issued for operating unit

92090

O

03/03

new

92110

E

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

92120

D

03/03

a2, a4, a6, c2, c4, e1, j2, k2, k4, k5, k6

92121

O

03/03

new

93021

D

03/03

a2, a4, a6, c2, j2, k2

93050

E

03/03

a2, a4, a6, c2, j2, k3

93055

D

03/03

a2, a4, a6, c2, j1, k2, k4, k5, k6

151011

C

03/03

a2, a4, a6, c2, j2, k2

151015

C

03/03

a2, a4, a6, c2, j2, k2

151031

C

03/03

a2, a4, a6, c2, j2, k2

151041

B

03/03

a2, a4, a6, c2, j2, k2

151042

B

03/03

a2, a4, a6, c2, j2, k2

151055

C

03/03

a2, a4, a6, c2, j2, k2

151071

C

03/03

a2, a4, a6, c2, j2, k2, k5, k6

151076

C

03/03

a2, a4, a6, c2, h1, j2, k2, k4, k5, k6

151261

D

03/03

a2, a4, a6, c2, j2, k2, k4, k5, k6

152020

E

03/03

a2, a4, a6, c2, j2, k2, k5, k6

152021

O

03/03

new

153050

E

03/03

a2, a4, a6, c2, j2, k3

251011

D

03/03

a2, a4, a6, c2, j2, k5

251031

C

03/03

a2, a6, c2, j2

251076

C

03/03

a2, a6, c2, j2, k2, k5, k6

252050

C

03/03

a2, a4, a6, c4, c5, k4, k5, k6

253021

C

03/03

a2, a4, a6, c2, j2, k2

253055

D

03/03

c4

Revision notes a1)

Boltset butterfly valves deleted

a2)

Boltset flange joint reviewed; where required extra length for bolt tensioning included

a3)

Boltset orifice flanges added

a4)

Boltset orifice flanges reviewed; where required extra length for bolt tensioning included

a5)

Boltset orifice flanges deleted

a6)

Boltset spectacle/spacer reviewed; where required extra length for bolt tensioning included

a7)

Boltset spectacle/spacer deleted

b1)

Branch nipples flanged deleted; material not available as forging

b2)

Branch outlets updated according to branch table

b3)

Branch table corrected

c1)

Caps deleted

c2)

Cover flange with boltset deleted

c3)

Welding neck/blind flanges added

c4)

Gaskets changed

DEP 31.38.01.12-Gen.  April 2003 Page 10 c5)

Nut material changed

c6)

Equal tee changed

c7)

Reducing tee added

d1)

Meter run/orifice flange set deleted

e1)

P/T rating changed/corrected

f1)

Y-type strainer changed

g1)

Pressure assembly deleted

h1)

Size range changed

 j1)

Thermowell (assembly) added

 j2)

Thermowell (assembly) changed

 j3)

Thermowell (assembly) deleted

k1)

Ball valve changed

k2)

Butterfly valve added

k3)

Butterfly valve changed

k4)

Check valve changed

k5)

Gate valve changed

k6)

Globe valve changed

DEP 31.38.01.12-Gen.  April 2003 Page 11 2.

SUMMARY OF ISSUED PIPING CLASSES Material Carbon steel

Carbon steel LT

Low alloy steel

Piping class no. 1011 1012 1013 1015 1021 1023 1025 1031 1041 1042 1055 1071 1076 1091 1125 1126 1131 1160 1201 1261 1271 1300 1372 1373 1374 1172 1173 1174 1175 1176 1180 1310 2010 2011 2020 2021 2040 2050 2080 2090

Stainless steel

Nickel and nickel base alloys

2110 2120 2121 3011 3021 3031 3050 3055 3090 3091 3100 6021 6071 6080

150 x

x x x x x x x x x x x x x

x x x x x x x x x x x x

x

300 x x x x x x x x x x x x x x x x x x x x x x x x x x x

ASME class rating 600 900 1500 x x x x x

x

x

x x x x x x

x x x x x x

x x x x x x

x

x

x

2500 x

x

x

x

x

x x x x x x

x

x

x x

x x

x x x

x x x

x x x

x x x

x x

x x x

x x x x

x x x x

x x x x x x x x x x

x

x

x x x x x

x x x

x x x

x x

x

x x x

DEP 31.38.01.12-Gen.  April 2003 Page 12 SUMMARY OF ISSUED PIPING CLASSES (continued) Material

Piping class no. 7011 7012 7015 7102

150 x x x x

Carbon steel, galvanised

7121 7201 7240 7311 7320 8011

x x x x x x

Carbon steel, lined

8081 8160

x x

Non-metallic

300

ASME class rating 600 900 1500

2500

DEP 31.38.01.12-Gen.  April 2003 Page 13 3.

SERVICE INDEX

WHERE THE SERVICE IS NOT SPECIFICALLY DEFINED BELOW, AND FOR FINAL SELECTION OF MATERIALS, A MATERIALS ENGINEER SHALL BE CONSULTED Service

Recommended

Medium

Properties

Temp. limits (°C)

 Acetic acid  Acetone  Acetonitrile  Acid service  Air  Allyl chloride  Amine  Amine  Amine  Amine  Amine Benzene Butanol Butanol Butyl alcohol Carbon dioxide Carbon dioxide Carbon dioxide Chlorine Chlorine Condensate Coolant Diethylene glycol Diethylene glycol Dimethylketone Diphenyl propane Ethane Ethanol Ethylene Ethylene oxide Ethylene oxide Ethylene oxide Foam, fire fighting Formic acids Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons Hydrochloric acid Hydrochloric acid Hydrogen Hydrogen Hydrogen Hydrogen Hydrogen Hydrogen chloride Hydrogen chloride Hydrogen fluoride Hydrogen peroxide Hydrogen sulphide Isobutyl alcohol Isopropyl alcohol Methane

all concentrations

0 0 0 0 0 0 0 0 80 0 0 0 0 0 0 0 0 0 -35 0 0 -50 0 0 0 0 -90 0 -140 0 0 0 0 0 0 0 0 0 0 -50 -50 0 0 240 240 240 230 0 0 0 0 230 230 230 0 0 0

-

0 0 0 -200

-

instrument, tool wet lean rich CO2 rich CO2 rich H2S with high severity HIC

secondary dry wet wet gas/liquid, dry gas, wet steam non-aerated 60/40 % H2O/Methanol all concentrations, dry water

CO2, Water concentrate, solution all concentrations non-corrosive non-corrosive non-corrosive with wet H2S with wet H2S with or without wet H2S with or without wet H2S with wet H2S with S and/or NA with S and/or NA with S and/or NA with S and/or NA with hydrogen and H2S concentration 11 conc. < 15% pH< 11 saturated, superheated superheated superheated superheated dry gas > 65% wt all concentrations demineralised aerated treated non-corrosive brackish- / seawater sweet chlorinated sea brackish- / seawater

brackish- / seawater brackish- / seawater chlorinated seawater fresh fresh dry and wet systems

with wet H2S with high severity HIC

Recommended Temp. limits (°C) 0 -50 0 -200 0 0 0 0

-

100 150 100 150 200 340 200 400

Remarks

Piping class(es)

1011 1172 1011 3090 1011 1011 3021 1160

See note

1021* 1021* 3091* 1021* 3031* 3011

0 - 200 1011 0 - 150 3021

1021* 3031* 3011

0 - 200 3021 0 - 150 1011 0 - 200 1011

3031* 1021* 1021*

to prevent product contamination

6,8 1 to prevent product contamination 8

-48 -100 0 0 0 0 400 400 500 0 0 0 0 0 0 -5 0 -5 -5 0 0 -5 0 0 0 0 0 0 0 0 0

-

150 1180 150 3090 150 6021 50 7012 60 7240 400 1261 450 2020 538 2021 550 2121 340 1011 65 1091 65 8160 150 3021 250 1011 90 7011 60 7320 50 1201 60 7320 60 7320 80 3021 80 7012 50 7121 50 8011 50 7121 50 1201 50 7102 50 7102 40 7012 40 7015 200 1042 200 1055

1 1 8,16 4 4 8,16 10 10

1172* 3091*

2050 1 8,17 8,17 1

3031* 3011

10 10 10 10 10

7311

3031* 3011

for above ground systems only check oxygen and corrosion rate/life 8011

1126*

for above ground systems only for above ground systems only for underground systems only Mod sour high sour

Notes for Service Index: *)

1 4 1 4 1 1 1

Piping class with ball valve class; preferred by most Chemical Plants and/or for services requiring frequent valve operations. 1)

Piping classes 31011 and 31012 are interchangeable.

2)

Selection between 1 and 3 mm corrosion allowance depending on the corrosivety of the medium has to be selected by the corrosion engineer.

3)

For the definition of "High Sour" and "Mod Sour", see DEP 31.38.01.11-Gen., Appendix 10. For new construction and/or modifications to existing piping, this Appendix should be used to determine the severity of the wet H2S process environment and the piping class/materials selected accordingly, taking into account economics and material availability.

4)

See DEP 30.10.02.31-Gen. for low temperature service.

5)

See DEP 31.38.01.11-Gen., Appendix 10 for piping in dry chlorine service.

10 10, 11 11 10,11 11 10, 11 10, 11 10 10 3 3

DEP 31.38.01.12-Gen.  April 2003 Page 15 6)

See DEP 31.10.11.31-Gen for gaseous oxygen systems.

7)

Amine includes ADIP, MEA, DEA, AD, TEA and sulfinol: H S case = H S/CO2 > 0.01 for gas phase, > 0.02 for liquid phase; 2 2 CO  case = H S/CO  < 0.01 for gas phase, > 0.02 for liquid phase.

8)

Selection shall be carried out by materials engineer on the the basis of the specific process conditions.

9)

Hydrocarbon service includes aviation alkylate, LPG, C1-C4, paraffins and olefins, fuel gas, fuel oil, gasoil, gasoline, isopentane, luboil, naphtha, pentane, toluene and xylene.

2

2

2

10) See DEP 31.40.10.19-Gen. for the use of GRP piping. 11) See DEP 80.47.10.31-Gen. for fire fighting installations. 12) H2 pp < 7 bar; wet H S < 50 mg/kg; wet HCN < 20 wppm; S < 0.3 wt. %; TAN < 0.3; H S < 0.01 mol.% 2

2

13) S = Sulphur, NA = Naphthenic Acids. 14) Consult a materials engineer for a check on the high temperature sulphidation corrosion rate and select materials accordingly. 15) See DEP 31.38.01.11-Gen., Appendix 10 for piping in hydrofluoric acid service. 16) See DEP 31.38.01.11-Gen., Appendix 10 for piping in sodium hydroxide (caustic soda) service. The same requirements are applicable to potassium hydroxide service. 17) See DEP 31.38.01.11-Gen., Appendix 10 for piping in sulphuric acid service.

DEP 31.38.01.12-Gen.  April 2003 Page 20 NOTES: *)

AISI 316+stellite 6 for sizes DN 15 to DN 40

(1)

In this column, where pipe material API 5L-B/ASTM A106-B is indicated, the piping class includes both API 5L Grade B pipe (welded and seamless) and ASTM A106 Grade B pipe (seamless). The most economic material selection is API 5L Grade B welded pipe (ERW or SAW ) and the piping class has been checked to show that this material may be used interchangeably without de-rating. ASTM A106 Grade B or AP I 5L Grade B seamless is provided as an option in the piping class.

(2)

This column indicates whether the piping class is suitable for "Sour" service. Classes indicated as "Mod" are suitable for "Moderate sour" service and include standard piping material specifications. Classes designated as "High" are suitable for "High sour" service and include special material specifications and testing. Both t ypes of piping class are also fully suitable for non-sour services. Both types of piping class contain the same valve specifications.

(3)

This column indicates whether the piping class requires post weld heat treatment (PWHT) for process reasons. In addition to PWHT of all shop and fields welds, valves are specified with PWHT of all welds (including repairs and internals).

(4)

This column indicates whether the piping class has special valves suitable for the indicated services.

CODES: Gasket Codes:

Bolting Codes:

Bolt

Nuts

TI

=

tanged insert

B7

=

ASTM A 193 - B7

ASTM A 194 - B2H

SPW

=

spiral wound

B7M

=

ASTM A 193 - B7M

ASTM A 194 - 2HM

RF

=

raised face

FF

=

flat face

B8

=

ASTM A 193 - B8, Class 2

ASTM A 194 - 8

B8MX

=

 ASTM A 193 - B8, Class 2B (≤ 1½”)

 ASTM A 194 - 8

 ASTM A 193 - B8M2, Class 2B (>1½”)

 ASTM A 194 - 8M ASTM A 193 - 4

B16

=

ASTM A 193 - B16

B16C

=

ASTM A 193 - B16

ASTM A 193 - 8C

B17

=

ASTM A 453 - 660, Class A

ASTM A 453 - 660, Class A

L7

=

ASTM A 320 - L7

ASTM A 194 - 4

L7M

=

ASTM A 320 - L7M

ASTM A 194 - 7M

DEP 31.38.01.12-Gen.  April 2003 Page 20 NOTES: *)

AISI 316+stellite 6 for sizes DN 15 to DN 40

(1)

In this column, where pipe material API 5L-B/ASTM A106-B is indicated, the piping class includes both API 5L Grade B pipe (welded and seamless) and ASTM A106 Grade B pipe (seamless). The most economic material selection is API 5L Grade B welded pipe (ERW or SAW ) and the piping class has been checked to show that this material may be used interchangeably without de-rating. ASTM A106 Grade B or AP I 5L Grade B seamless is provided as an option in the piping class.

(2)

This column indicates whether the piping class is suitable for "Sour" service. Classes indicated as "Mod" are suitable for "Moderate sour" service and include standard piping material specifications. Classes designated as "High" are suitable for "High sour" service and include special material specifications and testing. Both t ypes of piping class are also fully suitable for non-sour services. Both types of piping class contain the same valve specifications.

(3)

This column indicates whether the piping class requires post weld heat treatment (PWHT) for process reasons. In addition to PWHT of all shop and fields welds, valves are specified with PWHT of all welds (including repairs and internals).

(4)

This column indicates whether the piping class has special valves suitable for the indicated services.

CODES: Gasket Codes:

Bolting Codes:

Bolt

Nuts

TI

=

tanged insert

B7

=

ASTM A 193 - B7

ASTM A 194 - B2H

SPW

=

spiral wound

B7M

=

ASTM A 193 - B7M

ASTM A 194 - 2HM

RF

=

raised face

FF

=

flat face

B8

=

ASTM A 193 - B8, Class 2

ASTM A 194 - 8

B8MX

=

 ASTM A 193 - B8, Class 2B (≤ 1½”)

 ASTM A 194 - 8

 ASTM A 193 - B8M2, Class 2B (>1½”)

 ASTM A 194 - 8M ASTM A 193 - 4

B16

=

ASTM A 193 - B16

B16C

=

ASTM A 193 - B16

ASTM A 193 - 8C

B17

=

ASTM A 453 - 660, Class A

ASTM A 453 - 660, Class A

L7

=

ASTM A 320 - L7

ASTM A 194 - 4

L7M

=

ASTM A 320 - L7M

ASTM A 194 - 7M

DEP 31.38.01.12-Gen.  April 2003 Page 21 5.

PIPING CLASSES The remainder of this binder contains the piping classes, with separate tabbed sections for  ASME rating classes 150, 300, 600, 900, 1500 and 2 500. The piping classes are in numerical order within each section.

DEP 31.38.01.12-Gen.  April 2003 Page 21 5.

PIPING CLASSES The remainder of this binder contains the piping classes, with separate tabbed sections for  ASME rating classes 150, 300, 600, 900, 1500 and 2 500. The piping classes are in numerical order within each section.