ISO 10419:1993

ISO
INTERNATIONAL
STANDARD 10419
First edition
1993-08-0 1
Petroleum and natura1 gas industries - Drilling
and production equipment - Installation,
maintenance and repair of surface safety valves
and underwater safety valves offshore
Industries du pbtrole et du gaz naturel- Equipement de forage et de
production - Installation, maintenance et rkparation en mer des vannes de
skcuritk de surface et des vannes de skcuritb sous-marines
Reference number
ISO 10419:1993(E)

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ISO 10419:1993(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. Esch 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for voting. Publication as an International Standard requires
approval by at least 75 % of the member bodies casting a vote.
International Standard ISO 10419 was prepared by the American Petroleum Institute
(API) (as RP 14H, 3rd edition) and was adopted, under a special “fast-track procedure ”,
by Technical Committee lSO/TC 67, Materiak and equipment for Petroleum and
natura/ gas industries, in parallel with its approval by the ISO member bodies.
0 ISO 1993
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any
means, electronie or mechanical, including photocopying and microfilm, without Permission in
writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-121 1 Geneve 20 l Switzerla nd
Printed in Switzerland
ii

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ISO 10419:1993(E)
Introduction
International Standard ISO 10419:1993 reproduces the content of API RP 14H, 3rd
edition, 1991. ISO, in endorsing this API document, recognizes that in certain
respects the latter does not comply with all current ISO rules on the presentation and
content of an International Standard. Therefore, the relevant technical body, within
lSO/TC 67, will review ISO 10419:1993 and reissue it, when practicable, in a form
complying with these rules.
This International Standard is not intended to obviate the need for Sound engineering
judgement as to when and where this International Standard should be utilized and
users should be aware that additional or differing requirements may be needed to
meet the needs for the particular Service intended.
Standards referenced herein may be replaced by other international or national
Standards that tan be shown to meet or exceed the requirements of the referenced
Standards.
. . .
Ill

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ISO 10419:1993(E)
INTERNATIONAL STANDARD
Petroleum and natura1 gas industries - Drilling and
production equipment - Installation, maintenance and
repair of surface safety valves and underwater safety
valves offshore
1 Scope
This International Standard provides guidance for inspecting, installing, operating, maintaining and repairing surface
safety valves and underwater safety valves for offshore applications.
2 Requirements
Requirements are specified in:
“API Recommended Practice 14H (RP 14H), Third Edition, August 1, 1991, Recommended Practice for InstaUation,
Maintainance and Repair of Surface Safety Valves and Underwater Safety VaIves Qffshore ”,
which is adopted as ISO 10419.
For the purposes of international standardization, however, modifications shall apply to specific clauses and Paragraphs
of publication API RP 14H. These modifications are outlined below.
NOTE - A wavy line in the margin indicates the location of a modification to the text of the API document.
Page 2
TABLE OF CONTENTS
Appendix A: To be deleted.
Page 3
Information given in the POLICY is relevant to the API publication only.
Page 4
Information given in Paragraphs c, d, e and in the NOTES is relevant to the API publication only.
The conversion of English units shall be made in accordance with ISO 31-3. The content of column two (right-hand side
of page 3) shall read as follows:
LENGTH 1 inch (in) = 25,4 mm (exactly)
PRESSURE 1 pound-forte per Square inch (lbf/ir+) = 6 894,757 Pa
NOTE 1 bar = IO5 Pa
STRENGTH OR STRESS 1 pound-forte per Square inch (lbf/it-+) = 6 894,757 Pa
=
IMPACT ENERGY 1 foot-pound forte (ft=lbf) 1,355 818 J
1 foot-pound forte (ft-lbf) = 1,355 818 N-m
TORQUE
TEMPERATURE The following formula was used to convert degrees Fahrenheit ( “F)
to degrees Celsius ( “C):
OC = 5/9 ( “F - 32)
VOLUME
1 cubic foot = 0,028 316 8 m3 or 28,316 8 dm3
1 gal (US) = 0,003 785 4 m3 or 3,785 4 dm3
1 barrel (US) = 0,158 987 m3 or 158,987 dm3
MASS 1 pound (Ib) = 0,453 592 37 kg (exactly)
FORCE 1 pound-forte (lbf) = 4,448 222 N

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ISO 10419:1993(E)
FLOW RATE 1 barrellday = 0,158 987 m3/day
192 m3/day
1 cubic foot per minute (ft3/min) = 0,028 316 85 m3/min or 40,776
Page 7
Subclause 5.1, item b (3)
Second sentence shall read:
611 ’6 m3/day), during the pressure
“If sustained liquid flow exceeds 0 ’4 dmB/min or gas flow exceeds 424 ’75 dm3/min
holding test, the SSV should be repaired or replaced.”
Subclause 5.2, item b (2)
Second sentence shall read:
“If the absolute pressure buildup in the tonfine line Segment downstream of the USV s in excess of that which represents
a flow rate of 0 ’4 dms/min (0,576 ms/day)of liquid or 424 ’75 dm3/min (611 ’6 m3/day) of gas, the USV should be repaired
or replaced.”
Delete the third sentence starting: “An example. “, up to “Appendix A”
Page 73
Delete Appendix A.

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ISO 10419:1993(E)
Recommended Practice for
Installation, Maintenance and Repair of
Surface Safety Valves and
Underwater Safety Valves
Offshore
API RECOMMENDED PRACTICE 14H (RP 14H)
THiRD EDITION, AUGUST 1,199l
American Petroleum Institute
1220 L Street, Northwest
Washington, DC 20005

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ISO 10419:1993(E)
Issued by
AMERICAN PETROLEUM INSTITUTE
Production Department
FOR INFORMATION CONCERNING TECHNICAL CONTENTS OF
THIS PUBLICATION CONTACT THE API PRODUCTION DEPARTMENT,
2535 ONE MAIN PLACE, DALLAS, TX 75202 - (214) 748-3841.
SEE BACK SIDE FOR INFORMATION CONCERNING HOW TO OBTAIN
ADDITIONAL COPIES OF THIS PUBLICATION.
Users of this publication should become famiiiar with its scope and content.
This publication is intended to Supplement rather than
replace individual engineering judgment.
OFFICIAL PUBLICATION
REG U S PATENT OFFICE
Copyright @ 1991 American Petroleum Institute

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ISO 10419:1993(E)
2 American Petroleum Institute
INSTALLATION, MAINTENANCE AND REPAIR
OF SURFACE SAFETY VALVES
AND UNDERWATER SAFETY VALVES
OFFSHORE
TABLE OF CONTENTS
POLICY . . 3
4
FOREWORD . .
...5
DEFINITIONS .
SECTION 1 GENERAL . . 6
SECTION 2 RECEIVING INSPECTION . .6
SECTION 3 INSTALLATION & MAINTENANCE . .6
SECTION 4 REPAIR . .7
SECTION 5 TESTING PROCEDURES . .7
SECTION 6 FAILURE REPORTING . .8
SECTION 7 DOCUMENTATION REQUIREMENTS . .8
SECTION 8 MISCELLANEOUS . .8
TABLE 1 FAILURE REPORT FOR SAFETY VALVES (SSV)
AND UNDERWATER SAFETY VALVES (USV) . .9
10
EXHIBIT 1.1 SSV/USV REPAIR RECORD SHEET .
EXHIBIT 1.2 SSV/USV FUNCTIONAL TEST
DATA SHEET FOR ONSITE REPAIRS . 11
EXHIBIT 1.3 SSVKJSV FUNCTIONAL TEST
DATA SHEET FOR OFFSITE REPAIRS . .12
APPENDIX A SAMPLE PRESSURE BUILDUP CALCULATION . .13
f

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ISO 10419:1993(E)
Installation, Maintenance and Repair of Surface Safety Valves and Undewater Safety Valves Of&hore
3
POLICY
API PUBLICATIONS NECESSARILY ADDRESS DEPARTMENT (TEL. 214748-3841). A CATALOG OF
PROBLEMS OF A GENERAL NATURE. WITH API PUBLICATIONS AND MATERIALS IS PUBLISHED
RESPECT TO PARTICULAR CIRCUMSTANCES, ANNUALLY AND UPDATED QUARTERLY BY API,
LOCAL, STATE AND FEDERAL LAWS AND 1220 L ST., N.W., WASHINGTON, D.C. 20005.
REGULATIONS SHOULD BE REVIEWED.
AMERICAN PETROLEUM INSTITUTE (API)
API IS NOT UNDERTAKING TO MEET DUTIES OF RECOMMENDED PRACTICES ARE PUBLISHED TO
EMPLOYERS, MANUFACTURERS OR SUPPLIERS TO FACILITATE THE BROAD AVAILABILITY OF
WARN AND PROPERLY TRAIN AND EQUIP THEIR PROVEN, SOUND ENGINEERING AND OPERATING
EMPLOYEES, AND OTHERS EXPOSED, CON- PRACTICES. THESE RECOMMENDED PRACTICES
CERNING HEALTH AND SAFETY RISKS AND ARE NOT INTENDED TO OBVIATE THE NEED FOR
PRECAUTIONS, NOR UNDERTAKING THEIR APPLYING SOUND JUDGMENT AS TO WHEN AND
OBLIGATIONS UNDER LOCAL, STATE, OR FEDERAL WHERE THESE RECOMMENDED PRACTICES
LAWS. SHOULD BE UTILIZED.
NOTHING CONTAINED IN ANY API PUBLICATION THE FORMULATION AND PUBLICATION OF API
IS TO BE CONSTRUED AS GRANTING ANY RIGHT, RECOMMENDED PRACTICES IS NOT INTENDED TO,
BY IMPLICATION OR OTHERWISE, FOR THE IN ANY WAY, INHIBIT ANYONE FROM USING ANY
MANUFACTURE, SALE, OR USE OF ANY METHOD, OTHER PRACTICES.
APPARATUS, OR PRODUCT CONVERED BY LETTERS
ANY RECOMMENDED PRACTICE MAY BE USED BY
PATENT. NEITHER SHOULD ANYTHING
ANYONE DESIRING TO DO SO, AND A DILIGENT
CONTAINED IN THE PUBLICATION BE CONSTRUED
EFFORT HAS BEEN MADE BY API TO ASSURE THE
AS INSURING ANYONE AGAINST LIABILITY FOR
ACCURACY AND RELIABILITY OF THE DATA
INFRINGEMENT OF LEITERS PATENT.
CONTAINED HEREIN. HOWEVER, THE INSTITUTE
GENERALLY, API STANDARDS ARE REVIEWED MAKES NO REPRESENTATION, WARRANTY OR
AND REVISED, REAFFIRMED, OR WITHDRAWN AT GUARANTEE IN CONNECTION WITH THE
LEAST EVERY FIVE YEARS. SOMETIMES A ONE- PUBLICATION OF ANY RECOMMMENDED
TIME EXTENSION OF UP TO TWO YEARS WILL BE PRACTICE AND HEREBY EXPRESSLY DISCLAIMS
ADDED TO THIS REVIEW CYCLE. THIS ANY LIABILITY OR RESPONSIBILI ’T ’Y FOR LOSS OR
PUBLICATION WILL NO LONGER BE IN EFFECT FIVE DAMAGE RESULTING FROM ITS USE, FOR ANY
YEARS AFTER ITS PUBLICATION DATE AS AN VIOLATION OF ANY FEDERAL, STATE OR
OPERATIVE API STANDARD OR, WHERE AN MUNICIPAL REGULATION WLTH WHICH AN API
EXTENSION HAS BEEN GRANTED, UPON RECOMMENDATION MAY CONFLICT, OR FOR THE
REPUBLICATION. STATUS OF THE PUBLICATION INFRINGEMENT OF ANY PATENT RESULTING
CAN BE ASCERTAINED FROM THE API AUTHORING FROM THE USE OF THIS PUBLICATION.

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ISO 10419:1993(E)
American Petroleum Institute
4
FOREWORD
a. One of the means of assuring positive wellstream shutoff LENGTH
is the use of the wellhead surface safety valve (SSV) 1 inch (in.) = 25.4 Millimeters (mm)
or underwater safety valve (USV). It is imperative that exactly
the SSV/USV be mechanically reliable. It should therefore
PRESSURE
be operated, tested and maintained in a manner to assure
1 pound per = 0.06894757 Bar
continuously reliable performante.
Square inch (Psi)
b. The purpose of this recommended practice is to provide NOTE: 1 Bar = 100 kilopascals (kPa)
guidance for inspecting, installing, operating, maintaining
STRENGTH OR STRESS
and repairing SSVs/USVs manufactured according to
1 pound per = 0.006894757 Megapascals
API Specification 14D. Included are procedures for
Square inch (Psi)
ww
testing SSVs/USVs.
IMPACT ENERGY
c. This Standard was developed as an API Recommended
1 foot-pound = 1.355818 Joules (J)
Practice under the jurisdiction of the API Committee
(ft-lb)
on Standardization of Offshore Safety and Anti-Pollution
Equipment (API OSAPE Committee), and was prepared
1 foot-pound = 1.3558 18 Newton-meters
with the guidance of the API, the Offshore Operators
(ft-lb) N-m)
Committee (OOC) and the Western States Petroleum
TEMPERATURE
I Association (WSPA).
The following formula was used to convert degrees Fahrenheit
d. The API OSAPE Committee has the following scope:
(F) to Celsius (C):
API Specifications and Recommended Pactices for safety
C=5/9 (F-32)
and anti-pollution equipment and Systems used in offshore
VOLUME
oil and gas production, giving emphasis when appropriate
1 Cubic Foot (CU ft) = 0.02831685 Cubic
in such Standards to manufacturing, quality assurance,
Meter (m3)
equipment performante, testing and Systems analysis
1 Gallon (gal) = 0.003785412 Cubic
methods.
Meter (m3)
e. Conversions of English units to International System (SI)
1 Barrel (bbl) = 0.1589873 Cubic
metric units are provided throughout the text of this
Meter (m3)
Recommended Practice in parentheses, e.g. 6 in. (152.4
WEIGHT
mm). SI equivalents have also been included in all tables.
1 pound (Ib) = 0.4535924 Kilograms (kg)
English units are in all cases preferential and shall be
the Standard in this recommended practice. Products are
FORCE
to be marked in the units in which ordered unless there
1 pound (Ib,) = 4.448222 Newtons (N)
is an agreement to the contrary between the purchaser
and the manufacturer. The factors used for conversion FLOW RATE
of English units to SI units were taken from API 1 Barrel per day = 0.1589873 Cubic
Meters per day (m3/d)
Publication 2564, and are listed as follows:
WV
1 Cubic foot per = 40.77626 Cubic Meters
I
min (CFM) per day (m3/d)
NOTE: Requests for permission to reproduce or transuzte all or any part
of the material publlrhed herein should be addressed to the Director, API
Production Department, 2535 One Main Place, Dallas, TX 75202
Chis Standard shall become effective on the date printed on the cover
but may be used voluntanly from the date of distribution.
NOTE: ThrS LY the Third Edition of this publication It includes changes
to the Second Edition adopted at the 1990 Standardization Conference.
Attention Users: Portions of this publication have been changed from the
previous edition TJze locations of changes have been marked with a bar
in the margin, as shown to the left of this paragraphh In some cases
the changes are signtficant, while in other cases the changes reflect minor
editorial adjustments. 13te bar notations in the margim are provided as
an aid to users as to those Parts of this publication that have been changed
from the previous edition, but API makes no warranty as to the accuracy
of such bar notations.

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ISO 10419:1993(E)
Installation, Maintenance and Repair of Surface Safety Valves and Underwater Safety Valves Offshore
5
DEFINITIONS
The definitions below are related specifically to surface safety
SURFACE SAFETY An automatic wellhead valve
valves and underwater safety valves and are presented to define
VALVE (SSV) assembly which will close upon
I the terminology used in this Standard.
loss of power supply. When used
in this Standard it includes SSV
FAILURE Improper performante of a device
valve, SSV actuator, and heat
or equipment item that prevents
sensitive lackopen device.
completion of its design function.
SSVAJSV
The device which causes the SSV/
HEAT SENSITIVE A device installed on an SSV
ACTUATOR
USV valve to open when power
LOCKOPEN actuator to maintain the SSV valve
is supplied and to automatically
DEVICE in a full open Position, until
close when power is lost or
exposed to sufficient heat to cause
released.
the device to release and allow the
SSV valve to close. SSV/USV VALVE
The Portion of the SSV/USV
which contains the wellstream and
MANUFACTURER The principal agent in the design,
shuts off flow when closed.
fabrication and fumishing of an
SSV/USV actuator and/or SSV/ TREE,
An assembly of valves and fittings
USV valve. The SSV/USV valve CHRISTMAS
used for production control which
and SSV/USV actuator define
includes, as applicable, the tubing
functional entities and do not
head top flange, the bottom most
necessarily represent the units as master valve, the crown valve
supplied. (swabbing valve), the wellhead
Choke and all valves and fittings
OPERATING
The publication issued by the
in between.
MANUAL manufacturer which contains
detailed data and instructions VALVE, MASTER
A valve located in the vertical nm
related to the design, installation,
of a christmas tree whose primary
Operation, and maintenance of purpose is to shut off well flow.
SSV/USV equipment.
VALVE, WXNG
A valve located on the christmas
OPERATOR tree, but not in the vertical nm,
The user of an SSV/USV who
chooses to comply with this which tan be used to shut off well
Standard. flow.
QUALIFIED PART A part manufactured under an UNDERWATER An automatic valve assembly
SAFETY VALVE (USV) (installed at an underwater
authorized quality assurance
program and, in the case of wellhead location) which will
replacement, produced to meet or close upon loss of power supply.
When used in this Standard, it
exceed the performante of the
original part. includes USV valve and USV
actuator.
QUALIFIED PERSON An individual with characteristics
or abilities gained through training
or experience or both as measured
against established requirements
such as Standards or tests that
enable the individual to perform
a required function.
REPAIR Any activity that involves either
replacement of Parts or
disassembly/reassembly of the
SSV/USV, Repair may be offsite
or onsite as described in this
document.
9

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ISO 10419:1993(E)
American Petroleum Institute
6
SECTION 1
GENERAL
1.2 Scope. This recommended practice covers guidelines
1.1 Introduction. For many years, the petroleum industry
for inspecting, installing, maintaining, repairing, and Operation
has devised Plans and procedures to provide a Safe operating
of SSVs/USVs. Nothing in this RP is to be construed as
environment and to prevent waste and pollution. These
a fixed rule without regard to Sound engineering judgment
recommended practices for operating SSVs/USVs are based
nor is it intended to override applicable federal, state or local
on the accumulation of experiences and Plans.
laws.
SECTION 2
RECEIVING INSPECTION
2.2 Check the SSV/USV for visible darnage which might
Upon receipt of the SSV/USV a
...