1、November 2014 English price group 5No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.040.80!%C%j“2320271www.din.de
2、DIN 28091-1Technical delivery conditions for gasket sheets Part 1: General requirements for gasket materials,English translation of DIN 28091-1:2014-11Technische Lieferbedingungen fr Dichtungsplatten Teil 1: Allgemeine Festlegungen fr Dichtungswerkstoffe,Englische bersetzung von DIN 28091-1:2014-11S
3、pcifications techniques pour plaques isolantes Partie 1: Exigences gnrales pour matriaux dtanchit,Traduction anglaise de DIN 28091-1:2014-11SupersedesDIN 280911:199509www.beuth.deDocument comprises 5 pagesDTranslation by DIN-Sprachendienst. In case of doubt, the German-language original shall be con
4、sidered authoritative. 02.16 DIN 28091-1:2014-11 2 A comma is used as the decimal marker. Contents Page Foreword . 3 1 Scope 4 2 Normative references 4 3 Classification . 4 4 Dimensions 5 5 Marking . 5 DIN 28091-1:2014-11 3 Foreword This document (DIN 28091-1:2014) has been prepared by Working Commi
5、ttee NA 082-00-16 AA Flansche und ihre Verbindungen of the DIN-Normenausschuss Rohrleitungen und Dampfkesselanlagen (NARD) (DIN Standards Committee Piping and Boiler Plant). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN and/
6、or DKE shall not be held responsible for identifying any or all such patent rights. DIN 28091 consists of the following parts under the general title Technical delivery conditions for gasket sheets: Part 1: General requirements for gasket materials Part 2: Requirements and testing for fibre-based ga
7、sket materials (FA) Part 3: Requirements and testing for PTFE-based gasket materials (TF) Part 4: Requirements and testing for expanded graphite-based gasket materials (GR) Amendments This standard differs from DIN 28091-1:1995-09 as follows: a) normative references have been updated; b) dimensions
8、in Table 1 and Table 2 have been revised; c) informative Annex A with explanatory notes has been deleted; d) the standard has been editorially revised. Previous editions DIN 28091-1: 1995-09 DIN 28091-1:2014-11 4 1 Scope This standard specifies the technical delivery conditions for gasket sheets and
9、 the gaskets produced from such materials. See DIN 28091-2, DIN 28091-3 and DIN 28091-4 for material-specific properties and requirements. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For d
10、ated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 28091-2, Technical delivery conditions for gasket sheets Part 2: Requirements and testing for fibre-based gasket materials (FA) DIN 28091-3,
11、Technical delivery conditions for gasket sheets Part 3: Requirements and testing for PTFE-based gasket materials (TF) DIN 28091-4, Technical delivery conditions for gasket sheets Part 4: Requirements and testing for expanded graphite-based gasket materials (GR) 3 Classification Gasket materials are
12、classified according to their basic components into the following: a) compressed fibre materials (FA) (see DIN 28091-2); b) PTFE (TF) (see DIN 28091-3); c) expanded graphite-based gasket materials (GR) (see DIN 28091-4). DIN 28091-1:2014-11 5 4 Dimensions Gasket sheets in the dimensions given in Tab
13、les 1 and 2 are preferably to be used. Otherwise, dimensions shall be subject to agreement between manufacturer and customer. Table 1 Dimensions and limit deviations for sheet thickness Nominal sheet thickness Limit deviations for nominal sheet thickness (tolerance) Limit deviations for thickness pe
14、r sheeta (form tolerance) 1 mm null 0,1 mm 0,1 mm 1 mm null 10 % 0,2 mm aExample: Within a batch of gasket sheets with a nominal thickness of 4 mm, actual thicknesses may vary between 3,6 mm and 4,4 mm. However, the difference in thickness for a single sheet shall not be greater than 0,2 mm when com
15、paring the thickest and thinnest sections. Thus, the thickness of one sheet may vary between 3,6 mm and 3,8 mm, or may have a thickness ranging between 4,1 mm and 4,3 mm, or again between 4,2 mm and 4,4 mm. Table 2 Sheet size Width length Limit deviationsa As indicated by the manufacturer, e. g. 1 5
16、00 mm null 1 500 mm Nominal thickness is the lower limit for thickness (only plus tolerances are permitted) aFor all gasket sheets reinforced with metal, minus tolerances up to 0,5 % are permitted. 5 Marking Gasket sheets shall be marked repeatedly across sections no greater than 70 mm null 70 mm, s
17、o that the following are clearly legible: The manufacturers logo and trade name (obligatory), DIN number and the material designation as specified in DIN 28091-2 to DIN 28091-4 (optional). The material designations alone do not allow reliable conclusions to be drawn as to the performance of gasket materials. The material designations are thus not sufficient for the selection and ordering of gasket sheets and gaskets. In cases where the material cannot be marked across its surface, e.g. gasket sheets composed of PTFE, the marking shall be applied on one of the corners of each sheet.
