European foreword

This document (EN 14420‑4:2022) 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of an identical text or by endorsement, at the latest by February 2023, and conflicting national standards shall be withdrawn at the latest by February 2023.

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.

This document supersedes EN 14420‑4:2013.

In comparison to EN 14420‑4:2013, the following changes have been made:

— In Clause 2, the normative references have been updated;
— In Figure 1 and Figure 2, the indication of the length L has been deleted;
— In Figure 3 and Figure 4, the indication of the length l₁ and l₂ has been deleted;
— In Clause 4, Table 2 has been deleted;
— In Clause 5, Table 3 and Table 4 have been deleted;
— In Clause 5, Table 5 has been renamed to Table 2 and for the nominal size DN 200, the value s has been updated to 6,3 mm.

The EN 14420 series, Hose fittings with clamp units, consists of the following parts:

— Part 1: Requirements, types of fixing and connection, designation and testing
— Part 2: Hose side parts of hose tail
— Part 3: Clamp units, bolted or pinned
— Part 4: Flange connections
— Part 5: Threaded connections
— Part 6: TW tank truck couplings
— Part 7: Cam locking couplings
— Part 8: Symmetrical half coupling (Guillemin system)

Any feedback and questions on this document should be directed to the users’ national standards body. A complete listing of these bodies can be found on the CEN website.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United Kingdom.

BS EN 14420-4:2022

Hose fittings with clamp units - Flange connections

Current

Published:

30 Sep 2022