Tiêu chuẩn iso tr 17784 2003

TECHNICAL REPORT ISO/TR 17784 First edition 2003-07-15 `,,`,-`-`,,`,,`,`,,` - Rubber and plastics hoses and hose assemblies — Guide for use by purchasers, assemblers, installers and operating personnel Tuyaux et flexibles en caoutchouc et en plastique — Guide technique l'intention des acheteurs, des assembleurs, des installateurs et des utilisateurs Reference number ISO/TR 17784:2003(E) Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 Not for Resale ISO/TR 17784:2003(E) PDF disclaimer This PDF file may contain embedded typefaces In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy The ISO Central Secretariat accepts no liability in this area Adobe is a trademark of Adobe Systems Incorporated Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing Every care has been taken to ensure that the file is suitable for use by ISO member bodies In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below `,,`,-`-`,,`,,`,`,,` - © ISO 2003 All rights reserved Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester ISO copyright office Case postale 56 • CH-1211 Geneva 20 Tel + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale ISO/TR 17784:2003(E) Contents Page Foreword iv Introduction v Scope Terms and definitions General considerations for hoses Rubber hoses 16 Plastics hoses 23 Applications of rubber and plastics hoses and hose assemblies 29 Couplings 35 Bibliography 49 `,,`,-`-`,,`,,`,`,,` - iii © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale ISO/TR 17784:2003(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 International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part The main task of technical committees is to prepare International Standards 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 In exceptional circumstances, when a technical committee has collected data of a different kind from that which is normally published as an International Standard (“state of the art”, for example), it may decide by a simple majority vote of its participating members to publish a Technical Report A Technical Report is entirely informative in nature and does not have to be reviewed until the data it provides are considered to be no longer valid or useful 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 ISO/TR 17784 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and plastics) in collaboration with the Nederlands Normalisatie-instituut (NEN) Its aim is to promote operating security when using hoses Technical safety, inspection, system design and fitting of hoses are considered This may reduce or avoid the possibility of errors when working on or with hoses `,,`,-`-`,,`,,`,`,,` - iv Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale `,,`,-`-`,,`,,`,`,,` - ISO/TR 17784:2003(E) Introduction Hoses are used in places where a rigid connection to one connecting point or between two points is impracticable or when a flexible connection is required for delivery purposes Examples are suction and pressure hoses, loading and discharging hoses and connections between parts of moving and vibrating equipment Hoses are used for carrying media which are generally under pressure in systems Other applications include places where the frequent linking of one or both ends of a pipe may present problems Users often ask hose suppliers' advice on potential uses of hoses for their applications A hose supplier/manufacturer can give optimum advice only if he is fully informed of the specific operating circumstances If insufficient information on envisaged use is obtained, incorrect advice may be given, so that a hose not suitable for the intended use is supplied and installed Close consultation between user and hose manufacturer is therefore necessary Thus, a major function of this Technical Report is to provide an information resource to assist in decision making The guidelines presented in this document are derived from the Nederlands Normalisatie-instituut (NEN) document SPE 5660 (Hoses and accessories, directives for the application), second edition 1999, and were prepared by a task group of ISO/TC 45/SC 1/WG Metal hoses, included in SPE 5660, are excluded from this document because they fall outside the scope of ISO/TC 45/SC Furthermore, the section in SPE 5660 concerning storage has been omitted as it is the subject of ISO 8331 v © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale `,,`,-`-`,,`,,`,`,,` - Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale TECHNICAL REPORT ISO/TR 17784:2003(E) Rubber and plastics hoses and hose assemblies — Guide for use by purchasers, assemblers, installers and operating personnel Scope This Technical Report contains general information on rubber and plastic hoses with regard to both their properties and their practical application This includes, amongst other things, the properties of materials used in hoses, the precautions to be taken when storing hoses and the care required when installing and fitting hoses and their couplings Safety measures when testing hoses are also indicated This Technical Report is intended for use by system designers, purchasers, assemblers, installers and operating personnel to improve the operating safety of hoses and hose assemblies `,,`,-`-`,,`,,`,`,,` - NOTE Metal hoses are not included in this Technical Report Attention is drawn to the following International Standards: ISO 8444, ISO 8445, ISO 8446, ISO 8447, ISO 8448, ISO 8449, ISO 8450, ISO 10807, ISO 10806 and ISO 10380 This Technical Report cannot, in practice, cover all circumstances and therefore its content is largely based on examples It is assumed that these examples will provide sufficient information to give guidelines for a range of practical circumstances Terms and definitions For the purposes of this document, the terms and definitions given in ISO 8330 apply General considerations for hoses 3.1 Choosing the type of hose 3.1.1 General When choosing the type of hose the chief criteria are:  the resistance of the lining and cover of the hose to the media to which the hose comes into contact (air, oil, water, steam and chemicals) and/or external influences (ozone, UV light and weathering);  the maximum working pressure including any peak pressures;  the minimum and maximum temperatures that may arise during operation;  operational conditions i.e static, dynamic, ship to shore, dragging on the ground;  hazard category of the medium;  required working life Most hose manufacturers include a “resistance list” with their hose documentation, indicating the media against which their hose material is resistant It should be remembered that this list refers only to the materials used by the specific manufacturer, who will use their own composition of the product indicated by the © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale ISO/TR 17784:2003(E) collective name Temperature-pressure diagrams are also available showing the admissible pressures in combination with certain temperatures Although these tables are sometimes reasonably comprehensive, they are, nonetheless, not always adequate Hoses should not be used at temperatures outside the range advised by the manufacturer The hose supplier should be notified of all requirements to which the hose needs to conform in order to make the right choice of materials This includes all chemical, physical and mechanical Hoses that are not purchased against a standard should only be used for media recommended by the manufacturer's list The manufacturer's advice should be obtained if there is any doubt as to the suitability of a particular hose for a specific application 3.1.2 Maximum working pressure, proof pressure1) and minimum burst pressure The hose manufacturer has information regarding maximum working pressure, test pressure and burst pressure for hoses (see also ISO 7751 regarding the ratio of working pressure to burst pressure) The user has information on the rated system pressure and the working pressure As a general rule, the hose working pressure will be selected so that it is greater than the rated pressure in the user's system NOTE Pressures are sometimes divided into three classes, such as “low pressure”, “medium pressure” and “high pressure” However, hose manufacturers not use these pressure categories and these terms should not be used, as the national or international standards will not refer to them One manufacturer may well refer to a hose with a working pressure of 10 bar2) as a “medium-pressure” hose while a different manufacturer may still refer to a hose for a 200 bar pressure as a “low-pressure” hose The pressure-resisting strength of a hose is determined mainly by the reinforcement The pressure-resisting strength of tubing (a hose without reinforcement) depends on its wall thickness and material of construction 3.2 Electrical conductivity 3.2.1 General Hoses are divided into three types with regard to electrical conductivity, namely electrically bonded, conductive and non-conductive (or discontinuous or insulating) hoses Design of electrically bonded hoses Designs of electrically bonded hoses differ according to the type of hose Electrically bonded rubber and plastic hoses contain conducting wires (see Figure 1) These wires are always applied spirally, either crosswise or in parallel during manufacture The wires are connected to the metal couplings at the hose ends in such a way that an uninterrupted pathway with low electrical resistance is obtained throughout the assembled length when hose assemblies are coupled to each other “Composite” or multilayer hoses (see 6.3) have no conducting wires but are equipped with two conducting metal helixes In this case, the two helixes should be firmly connected to the hose coupling Problems may arise in practice where one of the two ends of a coated internal helix is not connected through as a result of an assembly fault The other wire will then still ensure a conductive connection so that the manufacturing error is not discovered when taking electrical measurements The non-connected internal helix may cause sparking Coated internal helixes should therefore be so designed that the electrical connection on both the internal and external helixes can be checked This may be achieved, for example, by connecting the external helix to the coupling in such a way that it can be disconnected in order to check the electrical connection of the internal helix (to the coupling) 1) This can also be the test pressure 2) bar = 0,1 MPa Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale `,,`,-`-`,,`,,`,`,,` - 3.2.2 ISO/TR 17784:2003(E) `,,`,-`-`,,`,,`,`,,` - Figure — Hose with metal conducting wires 3.2.3 Design of conductive hoses The construction of conductive hoses differs entirely from the designs described in 3.2.2 through the absence of wire contacts with the couplings The rubber composition contains a quantity of specially conductive carbon black such that the cover of the hose is conductive The hose couplings discharge the static electricity through the connecting points of the installation in which the hose is fitted, or to earth An anti-kinking spiral is often incorporated into the hose during manufacture but it is not electrically connected to the couplings Hoses of this kind should be made with wire-free cuffs (see ISO 1823, ISO 2928, ISO 2929 and ISO 5772) 3.2.4 Design of non-conductive (or discontinuous or insulating) hoses The materials used in the construction of a non-conductive hose should not be electrically conductive If metal materials are used within the construction, then these should not be connected to or come into contact with the coupling 3.3 Static electricity 3.3.1 General The generation of static charges can be avoided by a proper choice of operating circumstances:  adjust liquid velocities (as low as possible);  adjust air velocities (as low as possible);  adjust dust loading ratio on pneumatic conveyance;  earth all conductive parts;  speed up removal of electrical charges, e.g by increasing the conductivity of the material being transferred (e.g by adding conductive additives) NOTE The removal of static electrical charge is also accelerated at high relative humidity, e.g above 70 % NOTE For information in connection with static electricity, see “Hazards of static electricity” (chapter of document AI-25)[89] and, if applicable, Static Electricity Guidelines, latest Edition, 1980[90] © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale ISO/TR 17784:2003(E) 3.3.2 Earthing and through-connection The purpose of earthing and through-connection is to reduce the mortality risk and the risk to equipment caused by:  faults between live conductors and non-conductive metallic parts;  atmospheric discharge;  accumulation of static charges 3.3.3 Hoses for loading and unloading units Hoses used for loading and unloading road and rail tankers can be earthed by means of an external flexible copper cable of adequate cross-section A spark-free make-or-break installation is desirable when linking up a flexible earth conductor  petroleum distillates;  petroleum gases;  water or aqueous chemicals if well mixed with an oil product of low conductivity, consisting of the latter sediments from the oil phase;  solids (e.g powders or granulates) Non-conductive hoses can be used when operating conditions are safe Examples of these conditions are:  the charge cannot accumulate (e.g sufficiently high specific conductivity);  there is no explosive gas mixture;  no static charges can be generated (e.g low flow velocities) NOTE The following are regarded as safe product velocities in the oil industry: a) m/s generally during the start-up period and if no data are known regarding the product; b) m/s for potentially hazardous products in pipes without micro-filter/water separator or other obstructions, following the start-up period; c) Unlimited, if safe conditions prevail and/or where a safe product is concerned 3.3.4 Hoses between shore and ship Landing platforms and tankers with loading and discharging facilities are naturally earthed by the water so that, from the static electricity aspect, there is bound to be a good through-connection between the metal parts and earth cables between shore and ship provide little additional protection against static Furthermore, these electrically conductive connections can, if not properly linked up, prove dangerous, for example, as a result of cathodic protection installations which can cause relatively high electrical currents to flow between shore and ship When uncoupling the connecting pipe and/or hose connections, sparking may occur at the very point where liquid spillages are most likely Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale `,,`,-`-`,,`,,`,`,,` - Examples of materials which can be conveyed by conductive or semi-conductive hoses include the following: ISO/TR 17784:2003(E) 7.3 Threaded connections Instead of a flange connection, a threaded connection may be fitted When assembling a threaded connection to hoses, the same kind of problems arise as described for flanged connections The materials from which threaded connections are made may differ greatly: stainless steel, aluminium, brass, cast steel, etc A great variety of types of threaded connection is also available and suitable 7.4 7.4.1 Quick-acting couplings General To make a hose connection quickly, a “quick-acting coupling” can be used The choice for this kind of coupling is particularly wide Some types of quick-acting coupling are briefly described here NOTE It is not claimed that the couplings described here are preferable to other types which are not mentioned When purchasing and using quick-acting couplings, it should be remembered that the couplings are fitted with sealing rings, which may be made of various kinds of rubber or plastic The choice of hose and connections, as well as the seals in the couplings depends on the temperature and working pressure of the medium Coupling and uncoupling quick-acting couplings in pressure systems may be dangerous 7.4.2 Spigot and socket type Spigot and socket couplings are used especially for connecting hoses for pressurized air, gases, water and steam Spigot and socket couplings are used in combination with high-pressure guns for cleaning work See Figures 42 and 43 With a spigot and socket type of coupling, the spigot slides into the socket It is latched by a bayonet or by spring loaded balls `,,`,-`-`,,`,,`,`,,` - There are types of spigot and socket couplings where the spigot is so designed that it fits only into certain sockets in order to avoid dangerous mistakes These couplings are used where the mixing up of connections could have potentially fatal consequences Figure 42 — Spigot and socket coupling Figure 43 — Spigot and socket coupling with a different coupling principle 40 Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale ISO/TR 17784:2003(E) Figure 44 shows five examples where the coupling sockets all differ In other words, five different media can be transferred, each with its “own” end connection Figure 44 — Coupling sockets 7.4.3 7.4.3.1 Claw type couplings General Because of the simplicity of coupling systems associated with claw type couplings, these are the most commonly used Coupling/uncoupling occurs, in all cases, by rotating the coupling halves a quarter turn against each other Standardized spaces between the projections in the claw enable coupling sections of different diameters, but not of different types, to be connected to each other Claw couplings of the “DIN” type have higher retaining lugs than those of the “USA” type Differences of this kind can be overcome with the aid of a file because the coupling sections can then be made to fit each other reasonably well See Figures 45 and 46 WARNING — This practice should be avoided In the event of torsion in the hose, the connection will virtually always be broken because the retention lug has been removed Figure 45 — Adjustable claw type Figure 46 — Claw type coupling 41 © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale `,,`,-`-`,,`,,`,`,,` - Depending on service requirements, couplings can be designed with a built-in stop-valve The advantage of this is that, upon breaking the connection, leakage can be stopped if a quick-acting coupling is fitted immediately behind a valve Spigot and socket couplings can similarly be designed with a relief facility This can prevent the hose remaining under pressure after uncoupling it from the system ISO/TR 17784:2003(E) Summarizing, the following actions should be observed:  The retaining pin on couplings whose retention is so secured should always be used The coupling can never become undone if the pin is fitted Metal wire should never be used as this produces an unreliable connection  Make sure that the claw recess coincides with the second retaining lug on coupling connections secured by these lugs  With adjustable couplings retained by a nut on the screw thread connection, tighten the nut fast against the housing so that both halves of the coupling are in maximum contact with each other  Never make a connection with coupling sections where the retention lugs have been wholly or partly filed away  Use a safety cable or chain across two couplings for critical applications This prevents “whiplash” in the hoses should the claw connections inadvertently open Generally known and applicable almost everywhere are “claw type couplings” available in various dimensions of hose end connection and designs, such as:  the “DIN” coupling (7.4.3.2); not in accordance with ISO standards;  the “USA” coupling (7.4.3.3); not in accordance with ISO standards;  the adjustable “DIN” coupling (7.4.3.4); not in accordance with ISO standards The difference between the DIN types and the USA type concerns the dimensions The couplings may be made of brass, cast steel or cast iron Sealing rings are made of rubber, PTFE or copper 7.4.3.2 DIN coupling (not in accordance with ISO standards) This type of coupling conforms to DIN 34811), DIN 34821) and DIN 34831) The material is galvanized cast iron The two coupling ends are retained by projections in the housing that fit into a slot in the claw, which prevents the two halves of the coupling becoming undone 7.4.3.3 USA coupling (not in accordance with ISO standards) The USA coupling is not standardized and is very similar to the DIN coupling, but the two are not interchangeable Primary security is however obtained by fitting a retaining spring pin in two opposing holes made in the two halves of the coupling A disadvantage of this retaining method is that one may forget to fit the retaining spring pin when the two halves are coupled This means that the coupling connection could be broken while the hose is in use and under pressure, through the hose turning (twisting) The couplings should therefore always be secured by means of the retaining pin (see Figure 47) Figure 47 — Retaining pin 1) 42 No known equivalent ISO standards available `,,`,-`-`,,`,,`,`,,` - Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale ISO/TR 17784:2003(E) 7.4.3.4 Adjustable coupling Similarly produced according to the DIN standards is the “adjustable” coupling This coupling has a retaining feature almost identical to that of the DIN coupling described in 7.4.3.2 An effective connection is obtained by tightening a screw threaded connection fitted behind one of the coupling halves By this means, the two halves are joined more easily than with two non-adjustable claw couplings The advantages of this type of coupling are: a) easy coupling and uncoupling; b) less wear on the lugs and sealing rings; c) a safe seal because it cannot work loose as a result of external forces, e.g torsion 7.4.4 Fire hose couplings These couplings are used as universal connections for fire extinguishing water systems (System Storz) in many European countries They consist of a cam ring, a hose connecting nipple, a grooved rubber sealing ring and a securing clamp ring See Figure 48 Figure 48 — Fire hose coupling The connecting pieces are fitted with an internal or external pipe thread connection Fire hose connections should conform to the national standards or regulations of the individual country The couplings are generally made of brass or aluminium At present, there are no ISO or CEN standards for fire hose couplings, and each country uses their own choice of connectors (e.g DIN 86200, BS 336, NEN 3374 and other national standards) To prevent soiling of the couplings and the piping in the system, they should be sealed with a blank cap when not in use See Figure 49 Figure 49 — Blank cap for fire hose connection `,,`,-`-`,,`,,`,`,,` - 43 © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale ISO/TR 17784:2003(E) 7.4.5 Quick-acting coupling with valve Road tankers are being increasingly equipped with a discharge and loading connection with a quick-acting coupling and valve attached Hoses used at filling stations are therefore equipped with quick-acting couplings with valves This coupling has two functions: firstly as a coupling and secondly as a valve The quick-acting coupling has a built-in spring-loaded valve which is opened on coupling During disconnection this valve, as well as the valve on the counter connection, closes See Figure 50 The advantage of the coupling is that it permits a rapid connection to be made The disadvantage is that a high-pressure peak is produced in the loading system and therefore also in the hoses to which the coupling is fitted when the hose is disconnected and the valve closes Hose and coupling remain filled with medium under pressure after use This means that on warm days, pressure will build up within the hose It is therefore recommended that hoses be so stored after use that they are not exposed to sunlight The materials from which couplings may be made are: aluminium bronze, brass, stainless steel, monel, aluminium, bronze and cast steel The choice of materials and seals depends on the medium to be transferred 7.4.6 Screw coupling (with lug swivel) Screw couplings are used for loading and unloading rail tankers, and for so-called “off-shore” work consist of one half with a threaded piece with an internal and external thread, while the other half consists of an internal thread which is finished conically The connection can be made through a loose, lug-type swivel.The materials from which couplings are made include steel, stainless steel and bronze The latter material is commonly used at locations where sparking has to be avoided As an aid during coupling, a bronze hammer may be used Couplings can withstand pressures of 70 bar to 000 bar depending on their design and the type of material This type of coupling is subject to various API standards See Figure 51 44 Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale `,,`,-`-`,,`,,`,`,,` - Figure 50 — Quick-acting coupling with valve and blank cap ISO/TR 17784:2003(E) Figure 51 — Screw coupling (Hammerlug-Union) 7.4.7 Quick-acting coupling (cam and groove) Another type of quick-acting coupling consists of a coupling piece and an adapter The coupling may be made of various kinds of material such as stainless steel, bronze, aluminium and polypropylene The coupling piece, which is generally fitted with two levers and retaining rings, can be connected up in various ways, e.g to a hose nipple, internally or external threaded It is very easy to operate; the adapter is inserted into the coupling piece, the levers are lifted, and the securing can take place See Figures 52 and 53 Figure 52 — Coupling piece `,,`,-`-`,,`,,`,`,,` - © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale 45 ISO/TR 17784:2003(E) `,,`,-`-`,,`,,`,`,,` - Figure 53 — Adapter 7.4.8 Road/rail tanker coupling The tanker coupling, also known as the “German coupling”, is often used as a road/rail tanker (R/RT) connection This coupling is easily recognized by the “crown ring” in the coupling piece Coupling pieces are fitted to the pipe system by means of special assembly wrenches See Figures 54, 55 and 56 Figure 54 — Coupling piece Figure 55 — Adapter 46 Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale ISO/TR 17784:2003(E) Figure 56 — Assembly wrenches 7.4.9 The “ball” type coupling The ball type coupling is a kind of coupling which, before it is connected, can, to some extent, follow the misalignment of the hose The coupling consists of three parts, namely a ball, a clamp and a so-called cup The coupling's concave and convex conical design can follow the misalignment The two halves of the coupling are kept together by the clamp The material from which the coupling is made is cold-rolled steel which is black (weldable) or galvanized [either hot-dip or not (not weldable)] See Figures 57 and 58 `,,`,-`-`,,`,,`,`,,` - Figure 57 — Cup piece and clamp Figure 58 — Ball 47 © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale ISO/TR 17784:2003(E) 7.4.10 “French” coupling or “Guillemin” coupling A symmetrical coupling made of stainless steel or aluminium or polypropylene is known as the “French” coupling `,,`,-`-`,,`,,`,`,,` - The coupling is closed by placing the two coupling pieces together and giving them a quarter turn It is secured by tightening a nut located behind one of the coupling pieces This does not mean that a retaining nut is a standard item on this type of coupling The supplier should be consulted See Figures 59 and 60 Figure 59 — “French” coupling half with external thread Figure 60 — “French” coupling half with internal thread 48 Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale ISO/TR 17784:2003(E) Bibliography ISO standards [1] ISO 1307, Rubber and plastics hoses for general-purpose industrial applications — Bore diameters and tolerances, and tolerances on length [2] ISO 1401, Rubber hoses for agricultural spraying [3] ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing [4] ISO 1403, Rubber hoses, textile-reinforced, for general-purpose water applications — Specification [5] ISO 1436-1, Rubber hoses and hose assemblies — Wire-braid-reinforced hydraulic types — Specification — Part 1: Oil-based fluid applications [6] ISO 1746, Rubber or plastics hoses and tubing — Bending tests [7] ISO 1823-1, Rubber hoses and hose assemblies — Part 1: On-shore oil suction and discharge — Specification [8] ISO 1823-2, Rubber hoses and hose assemblies — Part 2: Ship/dockside discharge — Specification [9] ISO 1825, Rubber hoses and hose assemblies for aircraft ground fuelling and defuelling — Specification [10] ISO 2398, Rubber hose, textile-reinforced, for compressed air — Specification [11] ISO 2928, Rubber hoses and hose assemblies for liquified petroleum gas (LPG) in the liquid or gaseous phase and natural gas up to 25 bar (2,5 MPa) — Specification [12] ISO 2929, Rubber hoses and hose assemblies for bulk fuel delivery by truck — Specification [13] ISO 3253, Gas welding equipment — Hose connections for equipment for welding, cutting and allied processes [14] ISO 3821, Gas welding equipment — Rubber hoses for welding, cutting and allied processes [15] ISO 3861, Rubber hoses for sand and grit blasting — Specification [16] ISO 3862-1, Rubber hoses and hose assemblies — Rubber-covered spiral-wire-reinforced hydraulic types — Specification — Part 1: Oil-based fluid applications [17] ISO 3949, Plastics hoses and hose assemblies — Thermoplastics, textile-reinforced, hydraulic type — Specification [18] ISO 3994, Plastics hoses — Helical-thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials — Specification [19] ISO 3996, Road vehicles — Brake hose assemblies for hydraulic braking systems used with nonpetroleum-base brake fluid [20] ISO 4023, Rubber hoses for steam — Test methods [21] ISO 4079-1, Rubber hoses and hose assemblies — Textile-reinforced hydraulic types — Specification — Part 1: Oil-based fluid applications `,,`,-`-`,,`,,`,`,,` - 49 © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale [22] ISO 4080, Rubber and plastic hoses and hose assemblies — Determination of permeability to gas [23] ISO 4081, Rubber — Coolant hoses and tubing for use on private cars and light commercial vehicles — Specification [24] ISO 4132, Unplasticized polyvinyl chloride (PVC) and metal adaptor fittings for pipes under pressure — Laying lengths and size of threads — Metric series [25] ISO 4639-1, Rubber tubing and hoses for fuel circuits for internal-combustion engines — Specification — Part 1: Conventional liquid fuels [26] ISO 4639-2, Rubber tubing and hoses for fuel circuits for internal-combustion engines — Specification — Part 2: Oxygenated fuels [27] ISO 4639-3, Rubber tubing and hoses for fuel circuits for internal-combustion engines — Specification — Part 3: Oxidized fuels [28] ISO 4641, Rubber hoses for water suction and discharge — Specification [29] ISO 4642, Rubber products — Hoses, non-collapsible, for fire-fighting service [30] ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of dimensions [31] ISO 4672, Rubber and plastics hoses — Sub-ambient temperature flexibility tests [32] ISO 5031, Continuous mechanical handling equipment for loose bulk materials — Couplings and hose components used in pneumatic handling — Safety code [33] ISO 5359, Low-pressure hose assemblies for use with medical gases [34] ISO 5771, Rubber hose and hose assemblies for transferring anhydrous ammonia — Specification [35] ISO 5772, Rubber hoses and hose assemblies for measured fuel dispensing — Specification [36] ISO 5774, Plastics hoses, textile reinforced, for compressed air — Specification [37] ISO/TR 5924, Fire tests — Reaction to fire — Smoke generated by building products (dual-chamber test) [38] ISO/TR 5987, Inland navigation — Water fire-fighting system — Couplings of fire hoses — General technical requirements [39] ISO 6120, Road vehicles — Brake hose assemblies for hydraulic braking systems used with petroleum-base brake fluid [40] ISO 6134, Rubber hoses and hose assemblies for saturated steam — Specification [41] ISO 6224, Plastics hoses, textile-reinforced, for general-purpose water applications — Specification [42] ISO 6772, Aerospace — Fluid systems — Impulse testing of hydraulic hose, tubing and fitting assemblies [43] ISO 6801, Rubber or plastics hoses — Determination of volumetric expansion [44] ISO 6802, Rubber and plastics hose and hose assemblies with wire reinforcements — Hydraulic impulse test with flexing [45] ISO 6803, Rubber or plastics hoses and hose assemblies — Hydraulic-pressure impulse test without flexing 50 Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale `,,`,-`-`,,`,,`,`,,` - ISO/TR 17784:2003(E) ISO/TR 17784:2003(E) [46] ISO 6804, Rubber hoses and hose assemblies for washing-machines and dishwashers — Specification for inlet hoses [47] ISO 6805, Rubber hoses and hose assemblies for underground mining — Wire-reinforced hydraulic types for coal mining — Specification [48] ISO 6806, Rubber hoses and hose assemblies for use in oil burners — Specification [49] ISO 6807, Rubber hoses and hose assemblies for rotary drilling and vibration applications — Specification [50] ISO 6808, Plastics hoses and hose assemblies for suction and low-pressure discharge of petroleum liquids — Specification [51] ISO 6945, Rubber hoses — Determination of abrasion resistance of the outer cover [52] ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of suction resistance [53] ISO 7258, Polytetrafluoroethylene (PTFE) tubing for aerospace applications — Methods for the determination of the density and relative density [54] ISO 7313, Aircraft — High temperature convoluted hose assemblies in polytetrafluoroethylene (PTFE) [55] ISO 7326, Rubber and plastics hoses — Assessment of ozone resistance under static conditions [56] ISO/TR 7620, Rubber materials — Chemical resistance [57] ISO 7662, Rubber and plastics hoses — Determination of abrasion of lining [58] ISO 7751, Rubber and plastics hoses and hose assemblies — Ratios of proof and burst pressure to design working pressure [59] ISO 8028, Rubber and/or plastics hose assemblies for airless paint spraying — Specification [60] ISO 8029, Plastics hose — General purpose collapsible water hose, textile reinforced — Specification [61] ISO 8030, Rubber and plastics hoses — Method of test for flammability [62] ISO 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance [63] ISO 8032, Rubber and plastics hose assemblies — Flexing combined with hydraulic impulse test (halfomega test) [64] ISO 8033, Rubber and plastics hose — Determination of adhesion between components [65] ISO 8066-1, Rubber and plastics hoses and hose assemblies for automotive air conditioning — Specification — Part 1: Refrigerant 12 [66] ISO 8066-2, Rubber and plastics hoses and hose assemblies for automotive air conditioning — Specification — Part 2: Refrigerant 134a [67] ISO 8207, Gas welding equipment — Specification for hose assemblies for equipment for welding, cutting and allied processes [68] ISO 8308, Rubber and plastics hoses and tubing — Determination of transmission of liquids through hose and tubing walls [69] ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS `,,`,-`-`,,`,,`,`,,` - Not for Resale 51 ISO/TR 17784:2003(E) ISO 8331, Rubber and plastics hoses and hose assemblies — Guide to selection, storage, use and maintenance [71] ISO/TR 8354, Rubber hoses and hose assemblies for underground mining — Textile-reinforced air and water type [72] [73] `,,`,-`-`,,`,,`,`,,` - [70] ISO 8575, Aerospace — Fluid systems — Hydraulic system tubing ISO 8580, Rubber and plastics hoses — Determination of ultra-violet resistance under static conditions [74] ISO 8789, Rubber hoses and hose assemblies for liquefied petroleum gas in motor vehicles — Specification [75] ISO 8829, Aerospace — Polytetrafluoroethylene (PTFE) hose assemblies — Test methods [76] ISO 10960, Rubber and plastics hoses — Assessment of ozone resistance under dynamic conditions [77] ISO 11424, Rubber hoses and tubing for air and vacuum systems for internal-combustion engines — Specification [78] ISO 11425, Rubber hoses and hose assemblies for automobile power-steering systems — Specification [79] ISO 11758, Rubber and plastics hoses — Exposure to a xenon arc lamp — Determination of changes in colour and appearance [80] ISO 11759, Rubber hoses and hose assemblies for dispensing liquefied petroleum gases (LPGs) — Specification [81] ISO 12170, Gas welding equipment — Thermoplastic hoses for welding and allied processes [82] ISO 13774, Rubber and plastics hoses for fuels for internal-combustion engines — Method of test for flammability [83] ISO 14113, Gas welding equipment — Rubber and plastics hoses assembled for compressed or liquefied gases up to a maximum design pressure of 450 bar Other standards (used internationally) [84] BS 336, Specification for fire hose couplings and ancillary equipment [85] BS 5958-1, Code of practice for control of undesirable static electricity — Part 1: General considerations [86] BS 5958-2, Code of practice for control of undesirable static electricity — Part 2: Recommendations for particular industrial situations [87] DIN 86200, Fire extinguishing and wash deck installation — Hose couplings, armatures, hoses, accessories — Summary of types for shipbuilding [88] NEN 3374, Fire fighting equipment — Fire hose couplings and ancillary equipment Non-standards publications Publications concerning the contents of this Technical Report for which there are no known equivalent ISO publications available 52 Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS © ISO 2003 — All rights reserved Not for Resale ISO/TR 17784:2003(E) Prevention of serious accidents due to dangerous materials, Document No AI-25, published by Directorate-General of Labour, Dutch Ministry of Social Affairs2) [90] Richtlinien Statische Elektrizität (Static electricity guidelines), 4th edition, 19803) (guidelines to avoid ignition risks as a result of electro-static charges), Chemical Industry Employers Liability Association, Guideline No 4, 1980, published by Franz Spiller, Berlin 36/Verlag Chemie GmbH, Weinheim Bergstrasse, Germany [91] IMO (International Maritime Organization) Regulations [92] Hose standards — Guide to purchasing, manufacturing and testing of loading and discharge hoses for offshore moorings, 4th edition, 1991, Oil Companies International Marine Forum (OCIMF), distributors: Witherby & Co Ltd, 32 Aylesbury Street, London EC1R 0ET, UK [93] Hose standards — Guide to the handling, storage, inspection and testing of hoses in the field, Oil Companies International Marine Forum (OCIMF), distributors: Witherby & Co Ltd, 32 Aylesbury Street, London EC1R 0ET, UK [94] Labour Inspectorate Publications [95] Model code of practice in the petroleum field (Institute of Petroleum) — Part 1: Electrical safety code, 6th edition, 1991, Elsevier Applied Science Publications, Crown House, Linton Road, Barking, Essex, 1G11 8JU, UK `,,`,-`-`,,`,,`,`,,` - [89] 2) In Dutch 3) In German; it is possible that a later edition exists 53 © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale `,,`,-`-`,,`,,`,`,,` - ISO/TR 17784:2003(E) ICS 23.040.70 Price based on 53 pages © ISO 2003 — All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale