ISO 18139:2017

INTERNATIONAL ISO
STANDARD 18139
First edition
2017-02
Ships and marine technology — Globe
valves for use in low temperature
applications — Design and testing
requirements
Navires et technologie maritime — Robinets à soupape pour des
applications à basse température — Exigences de conception et
d’essais
Reference number
ISO 18139:2017(E)
©
ISO 2017

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ISO 18139:2017(E)

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ISO 18139:2017(E)

Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Pressure temperature rating . 3
4.1 Types of fluid . 3
4.2 Working pressure and design temperature . 3
5 Structure . 3
5.1 General structure of a globe valve . 3
5.2 Body type and material . 3
5.2.1 Type . . 3
5.2.2 Materials . 4
5.2.3 Manufacturing . 4
5.3 Types and materials of extended bonnet . 5
5.3.1 Design . 5
5.3.2 Materials . 5
5.4 Plug types and materials . 5
5.4.1 Design . 5
5.4.2 Materials . 5
5.5 Stem types and materials . 6
5.5.1 Design . 6
5.5.2 Materials . 6
5.6 Stem sealing . 6
5.7 Seat ring types and materials . 6
5.7.1 Design . 6
5.7.2 Materials . 6
5.8 Bolts and nuts types and materials . 6
5.8.1 Design . 6
5.8.2 Materials . 7
5.9 Driving system and operating device requirements . 7
5.9.1 Driving system of the valve . 7
5.9.2 Manual operation of the valve . 7
5.9.3 Materials for operating devices. 7
5.9.4 Explosion proof class . 7
5.9.5 Checking open degree . 7
5.9.6 Auto-operating devices . 7
5.9.7 Sealing class for gear boxes . 8
5.9.8 Installation direction of operating devices . 8
5.9.9 Direction of open and closed . 8
5.9.10 Special requirement . 8
5.10 Surface treatment . 8
5.11 Welding and heat treatment . 8
5.11.1 Welding . 8
5.11.2 Heat treatment. 8
6 Test and inspection . 8
6.1 Material test . 8
6.2 Non-destructive inspection . 8
6.2.1 Radiographic testing (RT) . 9
6.2.2 Penetrant testing (PT) . 9
6.2.3 Ultrasonic testing (UT) .10
6.2.4 Retest .10
6.2.5 Submission of inspection results .10
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ISO 18139:2017(E)

6.3 Dimension check .10
6.4 Visual inspection .10
6.5 Heat treatment inspection .10
6.6 Operating tests .10
6.7 Pressure tests, back seat tests and leak tests .10
6.7.1 Pressure tests.11
6.7.2 Back seat tests .11
6.8 Fire safety test .11
6.9 Cryogenic test .11
6.9.1 Scope of tests .11
6.9.2 Test procedure .12
6.9.3 Submission of test result .13
6.9.4 Marking .13
Annex A (informative) Cryogenic globe valve .14
Bibliography .17
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ISO 18139:2017(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www . i so .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology,
Subcommittee SC 3, Piping and machinery.
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INTERNATIONAL STANDARD ISO 18139:2017(E)
Ships and marine technology — Globe valves for use
in low temperature applications — Design and testing
requirements
1 Scope
This document specifies design, manufacture and test method requirements for cryogenic globe valves
for excellent quality leakage stability for use in a very low temperature environment (−50°C to −196°C).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5209, General purpose industrial valves — Marking
ISO 28921-1, Industrial valves — Isolating valves for low-temperature applications — Part 1: Design,
manufacturing and production testing
ASME B1.5, Acme Screw Threads
ASME B1.8, Stub Acme Screw Flanged Fittings
ASME B16.5, Pipe Flanges and Flanged Fittings
ASME B16.10, Face-to-Face and End-to-End Dimensions of Valves
ASME B16.11, Forged Fittings, Socket-Welding and Threaded
ASME B16.25, Butt-welding Ends
ASME B16.34, Valves-Flanged, Threads, and Welding End
ASME B16.47, Large Diameter Steel Flanges
ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)
ASTM A182/A182M, Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings and Valves and Parts for
High-temperature Service
ASTM A194/A194M, Carbon and Alloy Steel Nuts and Bolts for High-Pressure and High-Temperature Service
ASTM A320/A320M, Alloys-Steel Bolting material for Low-Temperature service
ASTM A350/A350M, Forgings, Carbon and Low-Alloy Steel, Requiring Notch Toughness Testing for Piping
Components
ASTM A351/A351M, Casting, Austenitic, Austenitic-Ferritic (Duplex), for Pressure-Containing Parts
ASTM A536/A536M, Standard Specification for Ductile Iron Castings
ASTM A694/694M, Forgings, Carbon and Alloy Steel, for Pipe Flanges, Fittings, Valves, and Parts for High-
Pressure Transmission service
ASTM E186, Reference Radiographs for Heavy-Walled (2 to 41/2-in. (50.8 to 114-mm)) Steel Castings
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ISO 18139:2017(E)

ASTM E446, Reference Radiographs for Steel Castings up to 2 in. in Thickness
ASME Sec. V, Non-destructive Examination
ASME Sec. VIII, Pressure vessels
API 598, Valve Inspection and Testing
MSS-SP-55, Quality Standard for Steel Castings for Valves, Flanges and Fittings and other Piping Components
(Visual Method)
BS 1873, Specification for steel globe and globe stop and check valves (flanged and butt-welding ends) for
the petroleum, petrochemical and allied industries
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
—  IEC Electropedia: available at http:// www .electropedia .org/
—  ISO Online browsing platform: available at http:// www .iso .org/ obp
3.1
nominal diameter
DN
alphanumeric designation of size for components of a pipework system, used for reference purposes
which comprises the letters DN followed by a dimensionless whole number that is related to the physical
size, in millimetres, of the bore or outside diameter of the end connections
Note 1 to entry: The number following the letters DN does not represent a measured value and shall not be used
for calculation purposes except where specified in the relevant standard.
Note 2 to entry: In those standards that use the DN designation system, any relationship between DN and
component dimensions shall be given, e.g. DN/OD or DN/ID.
3.2
nominal pressure
PN
numerical designation relating to pressure that is a convenient round number for reference purposes
Note 1 to entry: It is intended that all equipment of the same nominal size (DN) designated by the same
PN number shall have the same mating dimensions appropriate to the type of end connections.
Note 2 to entry: The permissible working pressure depends upon materials, design and working
temperature and has to be selected from the pressure / temperature rating tables in corresponding
standards.
3.3
nominal pipe size
NPS
dimensionless number for the purpose of pipe, flange, or flanged fitting end connection size
identification
Note 1 to entry: The number is not necessarily the same as the flange or flanged fitting inside diameter.
3.4
class
alphanumeric designation used for reference purposes related to a combination of mechanical and
dimensional characteristics of a component of a pipework system, which comprises the word “class”
followed by a dimensionless whole number
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ISO 18139:2017(E)

4 Pressure temperature rating
4.1 Types of fluid
The types of fluid are shown in Table 1.
Table 1 — Types of fluid (example)
Type Temperature (in atmos-   Liquid density(density)
pheric pressure)
3
LNG (Liquefied natural gas)     −163°C to −88°C     434 to 478 kg/m
3
    NG (Natural gas)     −160°C to −65°C     (0,7 to 0,89 kg/m )
3
LN2 (Liquefied nitrogen) −196°C       804 kg/m
3
      N2 (Nitrogen)     −196°C to −65°C      (1 184 kg/m )
4.2 Working pressure and design temperature
The working pressure and design temperature for this valve are shown in Table 2.
Table 2 — Working pressure and design temperature
Class    Maximum pressure Note
MPa(psi)
150 2,0 (290)  in ambient temperature
300 5,2 (750)
600       10,3 (1 500)
800       13,8 (2 000)
900       15,5 (2 250)
Class and maximum working pressure shall satisfy the standard class specified in ASME B16.34.
NOTE 1 The manufacturers and the purchasers may reach an agreement when Class exceeds 900.
NOTE 2 Working pressure is set following a piping design condition that is provided by the purchasers.
Design temperature shall be between −196°C and +100°C.
5 Structure
5.1 General structure of a globe valve
The globe valve is an ‘inside screw (IS)‘ type or ‘outside screw and Yoke (OS&Y)‘ type and has a ‘bolted
bonnet (BB)’, ‘solid plug’, ‘extended bonnet’, etc. The stem rises when the valve is open and the hand
wheel has a ‘rising’ or ‘non-rising’ structure. The constitution and functions of the globe valve are
shown in this document. If there are some differences from this document, the manufacturers can make
a decision after reaching an agreement with purchasers (the general structure of this valve is shown in
Figure 1).
5.2 Body type and material
5.2.1 Type
The globe valve is normally a ‘top entry bolted bonnet type’.
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ISO 18139:2017(E)

5.2.2 Materials
Materials shall be of equal quality or better than the materials shown in Table 3; materials for ‘welding
ends’ type valve may be used for ‘flanged ends’ type material.
Table 3 — Materials by manufacturing method
Manufacturing Materials
method
    Flanged ends type     Welding ends type
    Forging   ASTM A182 F304, F316  ASTM A182 F304L, F316L
    Casting   ASTM A351 CF8, CF8M   ASTM A351 CF3, CF3M
5.2.3 Manufacturing
The valve shall be manufactured per the following procedure except if there are purchaser’s special
orders.
a) Face-to-Face and End-to-End dimensions of the body shall satisfy ASME B16.10.
b) Body wall thickness shall be greater than minimum wall thickness as shown in ASME B16.34,
Tables 3 and 4.
c) The end connection of the body is ‘welding ends’ type or ‘end flanges’ type and manufactured
as below
1) ‘Welding ends’ type
1.1) socket welding ends
— Class 150, 300: to satisfy Class 3000 in ASME B16.11.
— Class 600: to satisfy Class 6000 in ASME B16.11.
— Class 800 to 1500: to satisfy Class 9000 in ASME B16.11.
1.2) butt welding ends
— Thickness of connected pipes less than Schedule 40: to satisfy Schedule 40 and
manufactured according to ASME B16.25 or BS 1873.
— Thickness of connected pipes greater than Schedule 40: to satisfy thickness of
connected pipes and be manufactured according to ASME B16.25 or BS 1873.
— Thickness of connected pipes shall satisfy ‘line schedules’, which is given by the
purchasers.
2) ‘End flanges’ type
2.1) Under NPS 24: to be manufactured according to ASME B16.5
— Class 150, Class 300: Raised Face(RF) type flange.
— Over Class 600: Large Groove Face(LGF) type flange or Raised Face(RF) type flange 2.2).
2.2) Over NPS 26: to be manufactured according to ASME B16.47
— Class 150, Class 300: Raised Face(RF) type flange.
— Over Class 600: Large Groove Face(LGF) type flange or Raised Face(RF) type flange.
2.3) Processing accuracy of face shall satisfy ASME B16.5 and ASME B16.47, and be measured
in accordance with ASME B46.1.
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ISO 18139:2017(E)

5.3 Types and materials of extended bonnet
5.3.1 Design
Types of the extended bonnet are shown as below.
a) Minimum wall thickness shall be thicker than the value in ASME B16.34, Table 4, but thickness of
the neck behind the back seat shall satisfy ASME B16.34, 6.1.3.
b) The flange connection of the bonnet connected to the body shall satisfy API 600, 2.2.2 to 2.2.4 or
BS 1873.
a) The length of the extended bonnet shall satisfy ISO 28921-1.
b) The insulation collar and drip plate may be installed on the extended bonnet where not insulated.
c) The insulation line shall be specified on a design drawing so that the valve operating area is
not frozen.
d) The back seat ring is to be installed inside of the extended bonnet.
5.3.2 Materials
Manufacturing methods shall be casting or welding casting (forging) part and connected pipe.
a) In case of casting: bonnet materials should be higher quality than the materials of the body;
b) Welding casting (forging) part and connected pipe
— Casting area: ASTM A351 CF3, CF3M.
— Forging area: ASTM A182 F304L, F316L.
— Connected pipe area: ASTM A312 or equal to ASTM A358 304L, 316L or better.
— Connected pipe shall be made as seamless pipe; longitudinal seams and orbital welding methods
are not allowed.
5.4 Plug types and materials
5.4.1 Design
a) The plug shall be a one-piece type and the port that blocks flow shall be a seated type.
Note When the temperature range is −52°C to −80°C, a soft seat type plug can be used.
b) Seat wear shall be minimized as the plug and shell are working.
c) The plug guide shall be installed to align the plug and stem straight.
d) A seat ring is not necessary if there is a body port.
5.4.2 Materials
Materials shall be equal to ASTM A182, F316, ASTM A351 CF8M or better. The part that adheres to the
seat ring needs a hard surface treatment to improve wear resistance. The thickness of hard surface
treatment shall be thicker than 1,6 mm.
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ISO 18139:2017(E)

5.5 Stem types and materials
5.5.1 Design
a) A stem shall be an ‘extended stem type’ unless there are special orders.
b) The minimum diameter of the stem shall be larger than the value in BS 1873. In case of a ‘Reduced
port type’, the manufacturers and the purchasers may reach an agreement.
c) The part of the stem that is connected to the plug shall not be detached as the valve is working and
has enough strength.
d) The outer surface of the stem shall precisely adhere to the packing to retain sealing, and be
accurately fabricated (surface roughness: less than 0,8 μm) to avoid damage as the valve is working.
e) When the valve is fully open, the part of the stem that contacts the back seat shall be made as a
‘coning type’ or ‘spherical type’ to adhere to the back seat perfectly.
f) Stem threads shall satisfy ASME B1.5 or ASME B1.8.
5.5.2 Materials
Stem materials shall be equal to ASTM A182, F316 or better than the body’s materials.
5.6 Stem sealing
a) The stem shall be sealed with an appropriate structure (ex. stem packing, lantern ring) to prevent
leakage.
b) The packing for stem sealing should have enough sealing characteristics and strength to prevent
damage when the valve is open/closed and working for a long time.
c) Packing materials for stem sealing may be equal to or better than graphite, PTFE, diagonal braid of
carbon fibers impregnated with PTFE. Manufacturers and the purchasers may reach an agreement,
however packing shall not have a chemical reaction to the working fluid or make deposits or
otherwise physically affect the working of the valve.
d) The packing for stem sealing shall be made such that it can be replaced easily.
5.7 Seat ring types and materials
5.7.1 Design
The seat ring (or integral seat) in the body shall be a single seated (or integral seated) type that is
united with a port to block the flow.
5.7.2 Materials
Materials for the seat ring shall be equal to ASTM A182, F316 or better than the body’s materials. A part
that adheres to the face of a plug needs hard facing treatment to improve wear resistance. In case of
the soft seat type plug (disc), hard facing of the seat face is not required. The thickness of hard surface
treatment shall be thicker than 1,6 mm.
5.8 Bolts and nuts types and materials
5.8.1 Design
Bolts and nuts for bonnet flanges, yokes and gland flanges shall satisfy BS 1873.
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ISO 18139:2017(E)

5.8.2 Materials
Materials for bolts and nuts are shown as below.
a) Bolts materials shall be equal to or better than ASTM A320 Gr. B8 class 2.
b) Nuts materials shall be equal to or better than ASTM
...