SIST EN 16643:2016
(Main)Rubber and plastics hoses and hose assemblies - Non-bonded fluoroplastic lined (e.g. PTFE) hoses and hose assemblies for liquid and gaseous chemicals - Specification
Rubber and plastics hoses and hose assemblies - Non-bonded fluoroplastic lined (e.g. PTFE) hoses and hose assemblies for liquid and gaseous chemicals - Specification
This European Standard specifies requirements for three types of non-bonded fluoroplastic lined hoses and hose assemblies with convoluted or smooth linings designed to convey liquid or gaseous chemical substances, hereinafter termed the "chemicals conveyed".
The hose assemblies are intended for use with chemicals conveyed in the temperature range of -70 degrees C to +260 degrees C at a working pressure of up to 360 bar1)
NOTE 1 This standard sets out requirements for these hoses and hose assemblies to ensure that users are not exposed to danger from fire or explosion and that the environment is protected against contamination or damage.
NOTE 2 Other working pressures than those given above can be agreed with the manufacturer provided the physical properties of the hose assembly materials conform to clause 8, the hose and hose assembly performance requirements conform to clause 9 and the hose assembly electrical properties conform to clause 10.
NOTE 3 Other diameters than those given in this standard can be agreed with the manufacturer provided the physical properties of the hose assembly materials conform to clause 8, the hose and hose assembly performance requirements conform to clause 9 and the hose assembly electrical properties conform to clause 10.
NOTE 4 This standard also provides guidance on the storage of hose assemblies (clause 15).
NOTE 5 The attention of users is drawn to annex G concerning the working temperature range which can be affected by the chemical(s) to be conveyed in the hoses and hose assemblies.
NOTE 6 The attention of users is drawn to annex G concerning the selection of materials for lining, helix wire (if applicable), electrical bonding wire (if applicable), braid reinforcement and cover (if applicable) related to the chemical(s) to be conveyed by the hoses and hose assemblies.
Gummi- und Kunststoffschläuche und -schlauchleitungen - Fluorkunststoffbeschichtete (z. B. PTFE) Nicht-Verbundschläuche und -schlauchleitungen für flüssige und gasförmige Chemikalien - Anforderungen
Diese Europäische Norm legt Anforderungen an drei Typen von fluorkunststoffbeschichteten Nicht-Verbundschläuchen und -schlauchleitungen mit gewellten oder glatten Innenschichten zum Fördern von flüssigen oder gasförmigen chemischen Stoffen fest; diese werden im Folgenden „geförderte Chemikalien“ genannt.
Die Schlauchleitungen sind für den Einsatz mit den geförderten Chemikalien im Temperaturbereich von 70 °C bis 260 °C bei einem Betriebsdruck von 360 bar ) vorgesehen.
ANMERKUNG 1 Diese Norm legt Sicherheitsanforderungen an diese Schläuche und Schlauchleitungen fest, um sicherzustellen, dass Anwender keinen Gefahren durch Brand oder Explosionen ausgesetzt werden und dass die Umwelt vor Verunreinigungen oder Schäden geschützt ist.
ANMERKUNG 2 Andere Betriebsdrücke als die vorstehend genannten können mit dem Hersteller vereinbart werden, vorausgesetzt, dass die physikalischen Eigenschaften der für die Schlauchleitungen verwendeten Werkstoffe den Festlegungen in Abschnitt 8, die Leistungsanforderungen an Schläuche und Schlauchleitungen den Festlegungen in Abschnitt 9 und die elektrischen Eigenschaften der Schlauchleitungen den Festlegungen in Abschnitt 10 entsprechen.
ANMERKUNG 3 Andere Durchmesser als die in dieser Norm angegebenen können mit dem Hersteller vereinbart werden, vorausgesetzt, dass die physikalischen Eigenschaften der für die Schlauchleitungen verwendeten Werkstoffe den Festlegungen in Abschnitt 8, die Leistungsanforderungen an Schläuche und Schlauchleitungen den Festlegungen in Abschnitt 9 und die elektrischen Eigenschaften der Schlauchleitungen den Festlegungen in Abschnitt 10 entsprechen.
ANMERKUNG 4 Diese Norm gibt ebenfalls Hinweise für die Lagerung von Schlauchleitungen (Abschnitt 15).
ANMERKUNG 5 Der Anwender wird auf Anhang G hinsichtlich des Betriebstemperaturbereichs hingewiesen, der durch die mit den Schläuchen und Schlauchleitungen zu fördernde(n) Chemikalie(n) beeinträchtigt werden kann.
ANMERKUNG 6 Der Anwender wird auf Anhang G hinsichtlich der Auswahl der Werkstoffe für die Innenschicht, die Wendel (falls anwendbar), den elektrischen Verbindungsdraht (falls anwendbar), die Geflechtverstärkung und die Außenschicht (falls anwendbar) hingewiesen, bezogen auf die mit den Schläuchen und Schlauchleitungen zu fördernde(n) Chemikalie(n).
Tuyaux et assemblages flexibles en caoutchouc et en matières plastiques - Tuyaux non-liés revêtus de fluoroplastique (par exemple PTFE) pour substances chimiques liquides ou gazeuses - Spécifications
La présente Norme européenne spécifie les exigences relatives à trois types de tuyaux et assemblages flexibles non-liés revêtus de fluoroplastique avec des tubes intérieurs spiralés ou lisses conçus pour transporter des substances chimiques liquides ou gazeuses, ci-après désignées « produits chimiques transportés ».
Les assemblages flexibles sont destinés à être utilisés avec des produits chimiques transportés dans une plage de température de - 70 C à + 260 C à une pression de service jusqu’à 360 bar )
NOTE 1 La présente norme établit des exigences pour ces tuyaux et assemblages flexibles afin de s'assurer que les utilisateurs ne sont pas exposés à des dangers dus à un incendie ou à une explosion et que l'environnement est protégé contre tout dommage ou pollution.
NOTE 2 Des pressions de service autres que celles données ci-dessus peuvent faire l'objet d'un accord avec le fabricant, à condition que les propriétés physiques des matériaux des assemblages flexibles soient conformes à l'Article 8, que les performances des tuyaux et assemblages flexibles soient conformes aux exigences de l'Article 9 et que les propriétés électriques des assemblages flexibles soient conformes à l'Article 10.
NOTE 3 Des diamètres autres que ceux donnés dans la présente norme peuvent faire l'objet d'un accord avec le fabricant, à condition que les propriétés physiques des matériaux des assemblages flexibles soient conformes à l'Article 8, que les performances des tuyaux et assemblages flexibles soient conformes aux exigences de l'Article 9 et que les propriétés électriques des assemblages flexibles soient conformes à l'Article 10.
NOTE 4 La présente norme fournit également des indications concernant le stockage des assemblages flexibles (Article 15).
NOTE 5 L'attention des utilisateurs est attirée sur l'Annexe G concernant la plage de température de service qui peut être affectée par le(s) produit(s) chimique(s) que les tuyaux et assemblages flexibles doivent transporter.
NOTE 6 L'attention des utilisateurs est attirée sur l'Annexe G concernant le choix des matériaux du tube intérieur, du fil métallique en hélice (le cas échéant), du fil de liaison électrique (le cas échéant), du renfort en tresse ou du revêtement (le cas échéant) en fonction du (des) produit(s) chimique(s) que les tuyaux et assemblages flexibles doivent transporter.
Gumene in polimerne cevi ter cevni priključki - Nevezane s fluoroplastiko (npr. PTFE) obložene cevi in cevni priključki za tekoče in plinaste kemikalije - Specifikacija
Ta evropski standard določa zahteve za tri vrste nevezanih s fluoroplastiko obloženih cevi in cevnih priključkov z nagubano ali gladko oblogo, ki so zasnovani za prenos tekočih ali plinastih kemičnih snovi (v nadaljevanju »prenesene kemikalije«). Cevni priključki so namenjeni za uporabo s prenesenimi kemikalijami v temperaturnem razponu od –70 °C do 260 °C pri delovnem tlaku največ 360 barov1) OPOMBA 1: Ta standard določa zahteve za te cevi in cevne priključke, ki zagotavljajo, da uporabniki niso izpostavljeni nevarnostim požara ali eksplozije in je okolje zavarovano pred onesnaženjem ali škodo. OPOMBA 2: Na podlagi dogovora s proizvajalcem se lahko vrednosti delovnega tlaka razlikujejo od zgornjih pod pogojem, da so fizične lastnosti materialov cevnih priključkov v skladu s točko 9, električne lastnosti cevnih priključkov pa v skladu s točko 10. OPOMBA 3: Na podlagi dogovora s proizvajalcem se lahko premeri razlikujejo od premerov, podanih v tem standardu, pod pogojem, da so fizične lastnosti materialov cevnih priključkov v skladu s točko 8, zahteve glede zmogljivosti cevi in cevnih priključkov v skladu s točko 9, električne lastnosti cevnih priključkov pa v skladu s točko 10. OPOMBA 4: Ta standard podaja tudi smernice glede skladiščenja cevnih priključkov (točka 15). OPOMBA 5: Uporabniki morajo upoštevati navedbe v dodatku G glede razpona delovne temperature, na katerega lahko vplivajo kemikalije za prenos po ceveh in cevnih priključkih. OPOMBA 6: Uporabniki morajo upoštevati navedbe v dodatku G glede izbire materialov za oblogo, žično spiralo (če se uporablja), električno vezno žico (če se uporablja), ojačitev prepleta in pokrov (če se uporablja) v povezavi s kemikalijami za prenos po ceveh in cevnih priključkih.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.6SHFLILNDFLMDGummi- und Kunststoffschläuche und -schlauchleitungen - Fluorkunststoffbeschichtete (z. B. PTFE) Nicht-Verbundschläuche und -schlauchleitungen für flüssige und gasförmige Chemikalien - AnforderungenTuyaux et assemblages flexibles en caoutchouc et en matières plastiques - Tuyaux non-liés revêtus de fluoroplastique (par exemple PTFE) pour substances chimiques liquides ou gazeuses - SpécificationsRubber and plastics hoses and hose assemblies - Non-bonded fluoroplastic lined (e.g. PTFE) hoses and hose assemblies for liquid and gaseous chemicals - Specification23.040.70Gumene cevi in armatureHoses and hose assembliesICS:Ta slovenski standard je istoveten z:EN 16643:2016SIST EN 16643:2016en,fr,de01-oktober-2016SIST EN 16643:2016SLOVENSKI
STANDARD
SIST EN 16643:2016
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16643
August
t r s x ICS
t uä r v rä y r English Version
Rubber and plastics hoses and hose assemblies æ Nonæassemblies for liquid and gaseous chemicals æ SpecificationTuyaux et flexibles en caoutchouc et en matières plastiques æ Tuyaux nonæliés revêtus de fluoroplastique liquides ou gazeuses æ Spécifications
Gummiæ und Kunststoffschläuche und æfür flüssige und gasförmige Chemikalien æ Anforderungen This European Standard was approved by CEN on
s w June
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x x v uã t r s x ESIST EN 16643:2016
EN 16643:2016 (E) 2 Contents Page European foreword . 5 Introduction . 6 1 Scope . 7 2 Normative References . 7 3 Terms and definitions . 8 4 Classification . 8 5 Hose assembly designs . 9 6 Materials and construction . 9 6.1 General . 9 6.2 Lining . 9 6.3 Helix wire (optional) . 9 6.4 Electrical bonding wires (optional) . 9 6.5 Braid reinforcement . 9 6.6 Cover (optional) . 9 7 Dimensions and tolerances . 10 7.1 Diameters, thickness, bend radii, resistance to vacuum and lowest permitted maximum working pressure requirements . 10 7.2 Concentricity . 18 7.3 Length of hose assemblies . 18 7.3.1 General . 18 7.3.2 Type SE and Type SC hose assemblies . 18 7.3.3 Type C hose assemblies . 18 8 Physical properties of materials used for hoses and hose assemblies . 18 8.1 General . 18 8.2 Materials used for the lining . 19 8.3 Materials used for the helix wire . 19 8.4 Materials used for the electrical bonding wires . 19 8.5 Materials used for the over-braid reinforcement . 19 8.6 Materials used for the cover . 20 8.7 Materials used for end fittings and couplings . 20 9 Performance requirements of hoses and hose assemblies . 20 10 Electrical properties . 22 10.1 General . 22 10.2 Electrical bonding . 22 10.3 Static-dissipative lining and/or static-dissipative cover . 22 11 Frequency of testing . 22 12 Type tests . 23 13 Test report . 23 14 Marking . 23 14.1 Hoses . 23 14.2 Hose assemblies. 23 SIST EN 16643:2016
EN 16643:2016 (E) 3 15 Storage and admissible storage time . 24 Annex A (normative)
Test frequency for type tests and routine tests . 25 Annex B (informative)
Production acceptance tests . 27 Annex C (normative)
Proof pressure test for fluoroplastic lining . 28 Annex D (informative)
Couplings and fittings . 29 D.1 General . 29 D.2 Fluoroplastic lined end fittings . 29 Annex E (normative)
Yield orientation index . 30 Annex F (normative)
Weep test . 31 F.1 General . 31 F.2 Test pieces . 31 F.3 Apparatus . 31 F.4 Test method . 31 Annex G (informative)
Resistance to chemicals conveyed . 32 Annex H (informative)
Permeability to gas . 33 H.1 General . 33 H.2 Test pieces . 33 H.3 Apparatus . 33 H.4 Test method . 33 Annex I (normative)
Flame resistance test . 36 I.1 Test pieces . 36 I.2 Apparatus . 36 I.3 Test method . 36 Annex J (normative)
Hose flexibility - Rolling U test . 38 J.1 General . 38 J.2 Test pieces . 38 J.3 Apparatus . 38 J.4 Test method . 38 Annex K (informative)
Environmental checklist . 41 Bibliography . 43
Tables Table 1 — Dimension requirements, Type SE lining hoses without and with cover . 11 Table 2 — Maximum working pressure requirements, Type SE lining hoses without and with cover for two typical braid reinforcements . 12 Table 3 — Dimension requirements, Type SC lining hoses without and with cover . 13 Table 4 — Maximum working pressure requirements, Type SC lining hoses without and with cover for three typical braid reinforcements . 14 Table 5 — Dimension requirements for manufacturing method 1, Type C lining hoses without and with cover . 15 Table 6 — Dimension requirements for manufacturing method 2, Type C lining hoses without and with cover . 16 SIST EN 16643:2016
EN 16643:2016 (E) 4 Table 7 — Maximum working pressure requirements, Type C lining hoses without and with cover for three typical braid reinforcements . 17 Table 8 — Physical properties of fluoroplastic lining . 19 Table 9 — Performance requirements of hoses and hose assemblies . 21 Table A.1 — Test frequency for type tests and routine tests . 25 Table B.1 — Production acceptance tests . 27 Table H.1 — Helium test pressures and average helium permeation rates for Type SC hose linings . 34 Table J.1 — Rolling U test movement . 38 Table K.1 — Environmental checklist . 42
Figures Figure H.1 — Arrangement for helium permeation test . 35 Figure I.1 — Arrangement for flammability test . 37 Figure J.1 — Rolling U test piece . 39 Figure J.2 — Typical arrangement of Rolling U test equipment . 40
SIST EN 16643:2016
EN 16643:2016 (E) 5 European foreword This document (EN 16643:2016) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2017, and conflicting national standards shall be withdrawn at the latest by February 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. Annexes A, C, E, F, I and J are normative. Annexes B, D, G, H and K are informative. WARNING – Persons using this European Standard should be familiar with normal laboratory practice. This standard does not purport to address all the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate health and safety practices and to ensure compliance with any national regulatory conditions. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16643:2016
EN 16643:2016 (E) 6 Introduction This document has been prepared to provide minimum acceptable requirements for the satisfactory performance of non-bonded flexible fluoroplastic lined hoses and hose assemblies with various types of reinforcement, for each chemical substance conveyed. SIST EN 16643:2016
EN 16643:2016 (E) 7 1 Scope This European Standard specifies requirements for three types of non-bonded fluoroplastic lined hoses and hose assemblies with convoluted or smooth linings designed to convey liquid or gaseous chemical substances, hereinafter termed the “chemicals conveyed”. These hoses and hose assemblies can be used for pharmaceutical, biotechnology and industrial applications as detailed in Clause 5. The hose assemblies are intended for use with chemicals conveyed in the temperature range of
« y r ¹C to
ª t x r ¹C and for a working pressure up to
t r w bar1). NOTE 1 This standard sets out requirements for these hoses and hose assemblies to ensure that users are not exposed to danger from fire or explosion and that the environment is protected against contamination or damage. NOTE 2 Other working pressures than those given above can be agreed with the manufacturer provided the physical properties of the hose assembly materials conform to Clause 8, the hose and hose assembly performance requirements conform to Clause 9 and the hose assembly electrical properties conform to Clause 10. NOTE 3 Other diameters than those given in this standard can be agreed with the manufacturer provided the physical properties of the hose assembly materials conform to Clause 8, the hose and hose assembly performance requirements conform to Clause 9 and the hose assembly electrical properties conform to Clause 10. NOTE 4 This standard also provides guidance on the storage of hose assemblies (Clause 15). NOTE 5 The attention of users is drawn to Annex G concerning the working temperature range which can be affected by the chemical(s) to be conveyed in the hoses and hose assemblies. NOTE 6 The attention of users is drawn to Annex G concerning the selection of materials for lining, helix wire (if applicable), electrical bonding wire (if applicable), braid reinforcement and cover (if applicable) related to the chemical(s) to be conveyed by the hoses and hose assemblies. 2 Normative References The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10088-3:2014, Stainless steels — Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes EN ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing (ISO 1402) EN ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of hoses and the lengths of hose assemblies (ISO 4671) EN ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum (ISO 7233) EN ISO 8031:2009, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance and conductivity (ISO 8031:2009) EN ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary (ISO 8330)
1) 1 bar = 0,1 MPa. SIST EN 16643:2016
EN 16643:2016 (E) 8 EN ISO 10619-1, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness — Part 1: Bending tests at ambient temperature (ISO 10619-1) EN ISO 12086-2, Plastics — Fluoropolymer dispersions and moulding and extrusion materials — Part 2: Preparation of test specimens and determination of properties (ISO 12086-2) ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 8330 and the following apply. NOTE In this document the word “fitting” has been used; this is, in some cases, interchangeable with the word “coupling”. 3.1 non-bonded hose construction where different layers in the hose wall (e.g. lining, braid reinforcement and cover) are not chemically bonded together 3.2 Grade I hose assembly constructed so that it is electrically insulating e.g. >108
À per assembly between end fittings, AND >108
À between lining and end fittings AND
µ s r8
À between cover and end fittings 4 Classification Hoses and hose assemblies for this application shall be divided into three types according to how the hose fluoroplastic lining is constructed/formed: — Type SE smoothbore (externally smooth): the hose lining is internally and externally smooth (parallel) in this document referred to as Smoothbore (externally smooth). — Type SC smoothbore (externally convoluted): the hose lining is internally smooth and externally convoluted in this document referred to as Smoothbore (externally convoluted). — Type C convoluted or corrugated: hose lining is internally and externally convoluted with the convolution running helically to the lining axis. Hoses and hose assemblies for this application shall be divided into eight grades: — Grade I: electrically insulated (no electrical bonding AND no static-dissipative layers), — Grade M: electrically bonded without static-dissipative lining or cover, — Grade
À-L: static-dissipative lining without electrical bonding, — Grade
À-C: static-dissipative cover without electrical bonding, — Grade
À-CL: static-dissipative cover and lining without electrical bonding, — -L: electrically bonded and static-dissipative lining, — -C: electrically bonded and static-dissipative cover, SIST EN 16643:2016
EN 16643:2016 (E) 9 — -CL: electrically bonded and static-dissipative cover and lining. 5 Hose assembly designs Hose assemblies are designed as follows: — design A Conformity to the demands of pharmaceutical and biotechnological industry of all hose assembly components, — design B Conformity to the demands of pharmaceutical and biotechnological industry of all parts of the hose assembly in contact with the product, — design C for industrial purposes only. 6 Materials and construction 6.1 General All types of hoses covered by this standard shall consist of a fluoroplastic (e.g. PTFE) lining with an over-braided reinforcement. Optionally a helix wire may be incorporated between the lining and braid reinforcement if the lining construction permits e.g. linings with external convolutions. Where electrical bonding is required between metallic end fittings in conjunction with no helix wire and plastic braid reinforcement, separate electrical bonding wires may be used situated between the lining and braid reinforcement. Optionally a cover or some other type of outer layer may be added to protect the over-braided reinforcement. 6.2 Lining The lining shall be uniform in quality and form and shall be free from porosity, holes, foreign inclusions and other defects which would impair the expected use. In circumstances where a hose lining can become electro-statically charged, a static-dissipative lining shall be used. 6.3 Helix wire (optional) Any helix wire (if applicable) shall be wrapped around the outside of the fluoroplastic lining to prevent contact with the medium conveyed within the hose. 6.4 Electrical bonding wires (optional) Any electrical bonding wires (if applicable) shall be wrapped around the outside of the fluoroplastic lining to prevent contact with the medium conveyed within the hose. See 10.2 b. 6.5 Braid reinforcement The reinforcement shall consist of an over-braid of suitable metallic or non-metallic materials. Multiple layers of reinforcement may be used including combinations of separate metallic and non-metallic layers. NOTE In low pressure applications Tube Only (TO) assemblies could be used. Consult assembly manufacturer for details. 6.6 Cover (optional) The cover (if applicable) can be a solid flexible outer layer (pricked or non-pricked) or spirally wrapped wire or spirally wrapped plastic strip and shall be designed to withstand mechanical damage. For SIST EN 16643:2016
EN 16643:2016 (E) 10 resistance to environmental effects due to weather and short-term external chemical exposure a solid flexible outer cover should be used. In circumstances where a hose cover can become electro-statically charged, a static-dissipative cover shall be used. 7 Dimensions and tolerances 7.1 Diameters, thickness, bend radii, resistance to vacuum and lowest permitted maximum working pressure requirements The inside and minimum outside diameters of hoses, minimum thickness of lining, minimum thickness of cover (where applicable), minimum bend radius and resistance to vacuum (capability to withstand an internal vacuum without damage as specified in Table 9) shall conform to the values given in Table 1, Table 3, Table 5
or Table 6 (depending on lining type). Minimum bend radius shall be equal to or less than the values given in Table 1, Table 3, Table 5 or Table 6 (depending on lining type). Maximum working pressures (MWP’s) shall be equal to or greater than the values given in Table 2, Table 4 or Table 7 (depending on lining type). Type C hoses may exhibit differences in flow rate and flexibility for a given nominal bore size and these differences are primarily influenced by inside diameter and shape of the convolutions. To provide scope for manufacturers to tailor flexibility and flow rates for a given nominal bore size Tables for two forms of Type C hose are provided in Tables 5 and 6, which are referred to as manufacturing methods 1 and 2 respectively. These manufacturing methods could be proprietary and therefore are not described or specified within this standard. To obtain specific flow rate and flexibility data the hose manufacturer should be consulted. SIST EN 16643:2016
EN 16643:2016 (E) 11 Table 1 — Dimension requirements, Type SE lining hoses without and with cover Nominal bore Inside diameter mm Tolerance mm Outer Layer Minimum thickness
mm Outsidea diameter mm min. Bend radius mm min. Resistanceb to vacuum bar lining cover 3,2 3,1 ±0,1 Braid 0,6 - 5,3 40
«0,9 Cover 0,4 6,1 5 4,7 ±0,2 Braid 0,6 - 7 60 Cover 0,4 7,8 6,3 6,3 ±0,4 Braid 0,6 - 8,4 80 Cover 0,5 9,4 8 8 ±0,6 Braid 0,6 - 10 100 Cover 0,5 11 10 10 ±0,9 Braid 0,6 - 11,7 130 Cover 0,6 12,9 13 13 ±1,1 Braid 0,7 - 14,8 170 Cover 0,6 16 16 16 ±1,1 Braid 0,7 - 18 200 Cover 0,8 19,6 19 19 ±1,2 Braid 0,7 - 21,1 230 Cover 0,8 22,7 25 25 ±1,2 Braid 0,9 - 27,6 320 Cover 0,8 29,2 a Minimum outside diameter assumes one layer of stainless steel braid reinforcement and minimum lining thickness shown, with and without cover. For other braid reinforcement materials and/or multiple braid reinforcement layers and/or thicker lining consult hose manufacturer for outside diameter and tolerances. b Ability to withstand the internal vacuum specified and shall conform to the requirements specified in Table 9. For resistance to vacuum at higher temperatures consult hose manufacturer. SIST EN 16643:2016
EN 16643:2016 (E) 12 Table 2 — Maximum working pressure requirements, Type SE lining hoses without and with cover for two typical braid reinforcements Nominal bore Maximum working pressurea Stainless steel braid bar Aramid braid bar 3,2 205 150 5 190 135 6,3 170 120 8 150 105 10 130 90 13 100 70 16 80 55 19 60 40 25 35
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