_RP_1124-1991_scan.pdf

Ship,Barge,-and Terminal Hydrocarbon Vapor Collection Manifolds API RECOMMENDED PRACTICE 1124 FIRST EDITION,MARCH 1991 American Petroleum Institute 1220 L Street,Northwest Washington,D.C.20005 l?Ship,Barge,and Terminal Hydrocarbon Vapor Collection Manifolds Transportation Department API RECOMMENDED PRACTICE 1124 FIRST EDITION,MARCH 19Q1 American Petroleum Institute l?SPECIAL NOTES 1.API PUBLICATIONS NECESSARILY ADDRESS PROBLEMS OF A GENERAL NATURE.WITH RESPECT TO PARTICULAR CIRCUMSTANCES,LOCAL,STATE,AND FEDERAL LAWS AND REGULATIONS SHOULD BEREVIEWED.2.API IS NOT UNDERTAKING TO MEET THE DUTIES OF EMPLOYERS,MANUFACTURERS,OR SUPPLIERS TO WARN OR PROPERLY TRAINAND EQUIP THEIR EMPLOYEES,AND OTHERS EXPOSED,CONCERNING HEALTH AND SAFETY RISKS AND PRECAUTIONS,NOR UNDERTAKING THEIR OBLIGATIONS UNDER LOCAL,STATE,OR FEDERALLAWS.3.INFORMATION CONCERNING SAFETY AND HEALTH RISKS ANDPROPER PRECAUTIONS WITH RESPECT TO PARTICULAR MATERIALSAND CONDITIONS SHOULD BE OBTAINED FROM THE EMPLOYER,THEMANUFACTURER OR SUPPLIER OF THAT MATERIAL,OR THE MATERIAL SAFETY DATA SHEET.4.NOTHING CONTAINED IN ANY API PUBLICATION IS TO BE CONSTRUED AS GRANTING ANY RIGHT,BY IMPLICATION OR OTHERWISE,FOR THE MANUFACTURE,SALE,OR USE OF ANY METHOD,APPARATUS,OR PRODUCT COVERED BY LETTERS PATENT,NEITHERSHOULD ANYTHING CONTAINED IN THE PUBLICATION BE CONSTRUED AS INSURING ANYONE AGAINST LIABILITY FOR INFRINGEMENT OF LETTERS PATENT.5.GENERALLY,API STANDARDS ARE REVIEWED AND REVISED,REAFFIRMED,OR WITHDRAWN AT LEAST EVERY FIVE YEARS,SOMETIMES A ONE-TIME EXTENS1ON OF UP TO TWO YEARS WILL BEADDED TO THIS REVIEW CYCLE.THIS PUBLICATION WILL NOLONGER BE IN EFFECT FIVE YEARS AFTER ITS PUBLICATION DATE ASAN OPERATIVE API STANDARD,OR WHERE AN EXTENSION HAS BEENGRANTED,UPON REPUBLICATION.STATUS OF THE PUBLICATIONCAN BE ASCERTAINED FROM THE API AUTHORING DEPARTMENTTELEPHONE(202)682-8000.A CATALOG OF API PUBLICATIONS ANDMATERIALS IS PUBLISHED ANNUALLY AND UPDATED QUARTERLYBY API,1220 L STREET,N.W.,WASHINGTON,DC 20005.Copyright 1991 American Petroleum Institute FOREWORD This recommended practice was developed under the direction of the API Marine Transportation Committee.The publication is intended to introduce uniformity in vapor manifold arrangements for tank ships,tank barges,and marine terminals required to installation vapor collection systems for the transfer of cargo vapors.API publications may be used by anyone desiring to do so.Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them;however,the Institute makes no representation,warranty,or guarantee in connection with the publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any federal,state,or municipal regulation with which this publication may conflict.Suggested revisions are invited and should be submitted to the director of the Transportation Department,American Petroleum Institute,1220 L Street,N.W.,Washington,D.C.20005.CONTENTS PAGE SECTION 1-GENERAL.1 1.1 Introduction.1 1.2 Background.1 1.3 Scope.1 1.4 Referenced Publications.1.SECTION 2-TANK SHIP VAPOR MANIFOLD RECOMMENDED PRACTICES.1 2.1 Ship Tonnage Categories.1 2.2 Manifold Position.4 2.2.1 Distance From Ships Side.4 2.2.2 Height of Vapor Manifold.,.4 2.2.3 Spacing.4 2.2.4 Number and Position.4 2.2.5 Labeling.-.4 2.3 Spill Tank and Working Platform.4 2.3.1 Spill Tank and Working Platform Details.4 2.3.2 Combined Working Platforms and Spill Tanks.8 2.4 Vapor Manifold:General.8 2.4.1 Material.8 2.4.2 Strength.8 2.5 Vapor Manifold Specifications and Fittings.8 2.5.1 Valves.8 2.5.2 Distance Pieces.9 2.5.3 Reducers/Expanders.9 2.5.4 Blank Flanges.10 SECTION 3-TANK BARGE VAPOR MANIFOLD RECOMMENDED PRACTICES.11 3.1 Barge Tonnage Categories.11 3.2 Manifold Position.11 3.3 Labeling.11 3.4 Drip Pans.12 3.5 Material.12 3.6 Valves.12 3.7 Flanges.12 3.8 Blank Flanges.13 SECTION 4-TERMINAL VAPOR MANIFOLD RECOMMENDED PRACTICES.13 4.1 Manifold Position.13 4.2 Labeling.13 4.2.1 Vapor Hoses.13 4.2.2 Vapor Collection Arms.13 4.3 Flanges.13 4.3.1 Vapor Hoses.13 4.3.2 Vapor Collection Arms.14 4.4 Protection Against Arcing During Connection/Disconnection.14 4.5 Reducers/Expanders.14 V Figures I Category A Manifold.2 2-Category B Manifold.3 3-Category C Manifold.5 4-Category D Manifold.6 5 Labeling.7 6-Presentation Flange Orientation.10 7-Barge Manifold(up to 10,000 DWf).11 8 Barge Manifold(above 10,000 DWf).12 Tables 1-Vapor Manifold Spacing.4 2-Loads at Tank Ship Presentation Flange.8 3-Tank Ship Vapor Reducers/Expanders.9 4-Barge Presentation Flange Sizes.12 Ship,Barge,and Terminal Hydrocarbon Vapor Collection Manifolds SECTION 1-GENERAL 1.1 Introduction 1.1.1 This recommended practice is intended to introduce uniformity in vapor manifold arrangements for all tank ships,tank barges,and marine terminals required to install vapor collection systems for the transfer of cargo vapors ashore or between vessels while loading or whi