Mesc Spe 85-300
Mesc Spe 85-300
Mesc Spe 85-300
February 2019
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
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MESC SPE 85/300
February 2019
Page 2
PREFACE
MESC (Materials and Equipment Standards and Code) SPE documents reflect the views, at the time of publication, of:
Shell Global Solutions International B.V. (Shell GSI)
and/or
Shell International Exploration and Production B.V. (SIEP)
and/or
other Shell 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 Shell Operating Units.
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 Shell 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 Shell companies for their consideration and decision to
implement. This is of particular importance where MESC SPEs may not cover every requirement or diversity of condition
at each locality. The system of MESC SPEs is expected to be sufficiently flexible to allow individual Operating Units to
adapt the information set forth in MESC SPEs to their own environment and requirements.
When Contractors or Manufacturers/Suppliers use MESC SPEs 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 practices, which will achieve the same level of
integrity as reflected in the MESC SPEs. 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 MESC SPEs is granted by Shell GSI, in most cases under Service Agreements primarily with Shell
companies and other companies receiving technical advice and services from Shell GSI or another Shell Service
Company. Consequently, three categories of users of MESC SPEs can be distinguished:
1) Operating Units having a Service Agreement with Shell GSI or other Shell Service Company. The use of MESC
SPEs by these Operating Units is subject in all respects to the terms and conditions of the relevant Service
Agreement.
2) Other parties who are authorized to use MESC SPEs subject to appropriate contractual arrangements (whether
as part of a Service Agreement or otherwise).
3) Contractors/subcontractors and 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
disclaims any liability of whatsoever nature for any damage (including injury or death) suffered by any company or
person whomsoever as a result of or in connection with the use, application or implementation of any MESC SPE,
combination of MESC SPEs or any part thereof, even if it is wholly or partly caused by negligence on the part of Shell
GSI or other Shell Service Company. The benefit of this disclaimer shall inure in all respects to Shell GSI and/or any
Shell Service Company, or companies affiliated to these companies, that may issue MESC SPEs or require the use of
MESC SPEs.
Without prejudice to any specific terms in respect of confidentiality under relevant contractual arrangements, MESC
SPEs shall not, without the prior written consent of Shell GSI, be disclosed by users to any company or person
whomsoever and the MESC SPEs 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. The copyright of MESC SPEs vests in Shell GSI. Users shall arrange for MESC SPEs to
be held in safe custody and Shell GSI may at any time require information satisfactory to them in order to ascertain how
users implement this requirement.
All administrative queries should be directed to the MESC SPE Administrator in Shell GSI.
MESC SPE 85/300
February 2019
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TABLE OF CONTENTS
PART I INTRODUCTION ...................................................................................................... 4
1.1 SCOPE ..................................................................................................................... 4
1.2 DISTRIBUTION, INTENDED USE AND REGULATORY CONSIDERATIONS ......... 4
1.3 DEFINITIONS ........................................................................................................... 4
1.4 ABBREVIATIONS ..................................................................................................... 4
1.5 CHANGES SINCE PREVIOUS EDITION ................................................................. 5
1.6 COMMENTS ON THIS MESC SPE .......................................................................... 5
PART II PROCEDURE AND TECHNICAL SPECIFICATIONS............................................... 6
1. INTRODUCTION ...................................................................................................... 6
2. GENERAL CONDITIONS ......................................................................................... 6
2.1 TAT COSTS ............................................................................................................. 6
2.2 TAT AT MANUFACTURER’S FACILITY................................................................... 6
2.3 TAT AT OUTSIDE TEST FACILITY .......................................................................... 6
2.4 TAMAP ACCEPTANCE ............................................................................................ 6
2.5 CONFLICT OF REQUIREMENTS ............................................................................ 7
2.5.1 Order of precedence ................................................................................................. 7
2.5.2 Conflict or inconsistency ........................................................................................... 7
2.5.3 Statutory requirements ............................................................................................. 7
2.6 CONFIDENTIALITY .................................................................................................. 7
3. TEST REQUIREMENTS ........................................................................................... 7
3.1 PRIOR TO TESTING ................................................................................................ 7
3.1.1 Test rig ..................................................................................................................... 7
3.1.2 Sample selection ...................................................................................................... 8
3.1.3 Test conditions ......................................................................................................... 8
3.2 TYPE OF TESTS ...................................................................................................... 9
3.3 TEST PROCEDURE............................................................................................... 10
3.3.1 Visual examination ................................................................................................. 10
3.3.2 Fugitive Emissions .................................................................................................. 10
3.3.3 Fire test .................................................................................................................. 10
3.3.4 EN 13555 Testing .................................................................................................. 11
3.3.5 High Temperature Operational Tightness Test (HOTT) .......................................... 11
3.3.6 Hot Blowout Test .................................................................................................... 11
3.3.7 Glue Identification ................................................................................................... 12
3.3.8 Gasket adhesion ..................................................................................................... 12
3.3.9 BAM........................................................................................................................ 12
3.3.10 Electrical isolation ................................................................................................... 13
3.4 CERTIFICATION .................................................................................................... 13
3.5 ACCEPTANCE ....................................................................................................... 13
3.6 REAPPROVAL ....................................................................................................... 13
PART III REFERENCES ....................................................................................................... 14
MESC SPE 85/300
February 2019
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PART I INTRODUCTION
1.1 SCOPE
This MESC SPE specifies requirements for Type Acceptance Testing of flat, covered
serrated metal (Camprofile) and spiral wound gaskets, and metal reinforced electrical
insulation gaskets.
1.3 DEFINITIONS
The Contractor is the party that carries out all or part of the design, engineering,
procurement, construction, commissioning or management of a project, or operation or
maintenance of a facility. The Principal may undertake all or part of the duties of the
Contractor.
The Manufacturer/Supplier is the party that manufactures or supplies equipment and
services to perform the duties specified by the Contractor.
The Principal is the party that initiates the project and ultimately pays for its design and
construction. The Principal will generally specify the technical requirements. The Principal
may also include an agent or consultant authorised to act for, and on behalf of, the
Principal.
The word shall indicates a requirement.
The word should indicates a recommendation.
1.4 ABBREVIATIONS
FE Fugitive Emission
HOBT Hot Blowout Test
HOTT High Temperature Operational Tightness Test
STAR Supplier Technical Assessment Record
TAMAP Technically Accepted Manufacturers and Products
TTRL Tightness Testing Research Laboratory
ISGOTT International Safety Guide for Oil Tankers and Terminals
MESC SPE 85/300
February 2019
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1. INTRODUCTION
Gaskets shall be certified to Supplier Technical Assessment Record (STAR) level 2 in the
Shell Global Solutions Technically Accepted Manufacturers and Products (TAMAP)
database.
The Type Acceptance Test (TAT) is installed to verify the design, performance and
technical integrity of the gaskets and manufacturing plant. The design of the gaskets shall
meet the applicable international design standard as amended and supplemented by the
applicable MESC SPE requirements.
This MESC SPE covers the gasket types as per Table 1.
2. GENERAL CONDITIONS
2.6 CONFIDENTIALITY
Shell Global Solutions will keep confidential all information submitted by the Manufacturer
and will not disclose any information to any third parties without the written approval from
the Manufacturer.
3. TEST REQUIREMENTS
- Test rig shall have either a serrated concentric or serrated spiral finish with a
resultant surface finish from 3.2 µm to 6.3µm (125 µin. to 250 µin.) in accordance
with ASME B16.5.
- Realistic gasket / bolt loads shall be applied. The values shall be advised by the
Manufacturer but shall not exceed 361 MPa (52 ksi) bolt stress. For spiral wound
and covered serrated metal gaskets, 361 MPa bolt stress (based on bolt root
area) shall be used.
- Application of lubrications or graphite paste is prohibited.
- Gasket temperature shall be measured by using thermocouples with the tips
embedded in the flange metal 2 mm to 3 mm (0.08 in to 0.12 in) below the surface in
the area covered by the sealing element and at a distance of 18 mm to 20 mm (0.7 in
to 0.8 in) from the bore.
Type of tests
Fugitive Emissions
EN 13555 Testing
Electrical Isolation
Glue Identification
Gasket Adhesion
Hot Blowout Test
Cover layer material
Fire test
BAM
Gasket type
3.3.10
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
3.3.7
3.3.8
3.3.9
Graphite
serrated metal
Covered
PTFE
Mica,
Vermiculite
Graphite
PTFE,
ePTFE
Fibre
based1
Flat sheet
Elastomer
types
Metal
reinforced
Mica
Graphite
Spiral wound
PTFE
Mica
based
Metal
reinforced
Isolation
GRE
Fire safe
1 Man Made Mineral Fibres (MMMF) are not recommended, due to a potential health concern
Fugitive
Emission Measured leak rate1
Tightness
Class
[Paꞏm3/(sꞏmmdia)] [mbarꞏl/(sꞏmmdia)]
AH 1.78 x 10 -8
1.78 x 10-7
Acceptance criteria:
Fire test executed in accordance with API 6FB, the acceptance criteria shall be in
accordance with API 6FB.
mica/vermiculite sheet gasket where the maximum temperature used will be 538 °C (1000
°F).
Test pressure (starting from 1 bar (14.5 psi)) shall be increased till blow out is
reached or shall be pressurised up to a minimum test pressure of 1.5 x maximum
pressure at maximum design temperature.
HOBT-2
Increasing temperature at maximum design pressure with a maximum gasket stress of 34.5
MPa (5004 psi) with helium or nitrogen as test fluid.
Maximum design pressure shall be based on ambient temperature.
Test temperature shall start from ambient temperature and shall be increased till
blow out is reached.
Procedure:
Test shall be carried out in accordance with the HOBT-1 for all gaskets except PTFE-based
sheet gaskets. PTFE-based sheet gaskets shall be tested in accordance with the HOBT-2.
Recordings:
HOBT-1
Maximum applied pressure where gasket blowout occured or test stopped
HOBT-2
Maximum temperature where gasket blowout occurs.
Acceptance criteria:
HOBT-1
Pressure where gasket blowout occurs shall be > 1.5 x maximum pressure at maximum
design temperature.
HOBT-2
Temperature where gasket blowout occurs shall be > 290°C (550°F)
3.3.9 BAM
Purpose:
MESC SPE 85/300
February 2019
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3.4 CERTIFICATION
For gaskets using metal parts, each metal part shall have an inspection test certificate and
test report in accordance with ISO 10474 -3.1B.
For gaskets using graphite, a certificate containing at least the chemical composition shall
be provided.
In case welding is applied to the gasket, the welding procedure shall be supplied.
3.5 ACCEPTANCE
When all tests as described in clause 3.3 have been successfully passed and all certificates
provided, the gasket will be accepted. Shell Global Solutions will notify the Manufacturer, in
writing, of the acceptance or rejection of gaskets.
3.6 REAPPROVAL
Changes to any item will not void the qualification of gaskets in TAMAP for which this TAT
procedure was intended to qualify, provided that the Manufacturer notifies Shell Global
Solutions and complies with any additional requirements Shell Global Solutions may
specify.
Shell Global Solutions has the right to request a re-test if the qualification of gaskets in
TAMAP has been voided. The re-test shall be subject to the same requirements as
specified in this MESC SPE. Unless agreed otherwise, the re-test shall take place at the
same testing facility where the previous test was carried out.
MESC SPE 85/300
February 2019
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SHELL STANDARDS
Covered serrated metal (Camprofile) gaskets to MESC SPE 85/100
EN 12560-6
Non-metallic flat gaskets, with or without insert to ASME MESC SPE 85/101
B16.21
Spiral wound gaskets to ASME B16.20 MESC SPE 85/103
AMERICAN STANDARDS
Fire test for end connections API 6FB
Issued by:
American Petroleum Institute
Publications and Distribution Section
1220 L Street Northwest
Washington DC 20005
USA
Pipe Flanges and Flanged Fittings NPS 1/2 Through ASME B16.5
NPS 24
Metallic gaskets for pipe flanges, ring joint, spiral wound ASME B16.20
and jacketed
Non-metallic Flat Gaskets for Pipe Flanges ASME B16.21
Issued by:
American Society of Mechanical Engineers
ASME International
Three Park Avenue, M/S 10E
New York, NY 10016
USA
EUROPEAN STANDARDS
Flanges and their joints – Gaskets for class-designated EN 12560-6
flanges. Part 6: Covered serrated metal gaskets for use
with steel flanges
Flanges and their joints – Gasket parameters and test EN 13555
procedures relevant to the design rules for gasketed
circular flange connections
Issued by:
Commité Européen de Normalisation
Secrétariat Central
Rue de Stassart 36
B-1050 Brussels
Belgium
GERMAN STANDARDS
Liste der nichtmetallischen Materialien BGI Merkblatt M034-1
Issued by:
Jedermann Verlag GmbH
Postfach 103140
69021 Heidelberg
Germany
INTERNATIONAL STANDARDS
Steel and Steel Products - Inspection Documents ISO 10474
Industrial valves Measurement, test and qualification ISO 15848-1
procedures for fugitive emissions.
Part 1: Classification system and qualification procedures
for type testing of valves
Issued by:
ISO Central Secretariat
1, ch. de la Voie-Creuse
Case postale 56
CH-1211 Genève 20
Switzerland
Copies can also be obtained from national standards
organizations.