ISO 6149-4:2017
Connections for fluid power and general use — Ports and stud ends with ISO 261 metric threads and O-ring sealing — Part 4: Dimensions, design, test methods and requirements for external hex and internal hex port plugs
ISO 6149-4:2017 specifies dimensions and performance requirements for external hex and internal hex port plugs for use with ISO 6149‑1 ports.
Port plugs in accordance with this document can be used at working pressures up to 63 MPa (630 bar[1]). The permissible working pressure depends upon the plug end size, materials, design, working conditions, application, etc.
Conformance to the dimensional information in this document does not guarantee rated performance. Each manufacturer is expected to perform testing according to the specification contained in this document to assure that components comply with the performance ratings.
WARNING: The use of stud ends conforming to this document with ports conforming to the relevant parts of ISO 1179, ISO 9974 and ISO 11926 could lead to a hazardous situation.
[1] 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Dimensions
4.1 Plug dimensions
4.2 Hex tolerances
4.3 Screw threads
5 Requirements
5.1 Working pressures and working temperatures
5.2 Performance
6 O-rings
7 Test methods
8 Designation of port plugs
9 Identification
10 Manufacture
10.1 Construction
10.2 Workmanship
10.3 Finish
11 Procurement information
12 Marking
13 Identification statement (reference to this document)
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Dimensions
4.1 Plug dimensions
4.2 Hex tolerances
4.3 Screw threads
5 Requirements
5.1 Working pressures and working temperatures
5.2 Performance
6 O-rings
7 Test methods
8 Designation of port plugs
9 Identification
10 Manufacture
10.1 Construction
10.2 Workmanship
10.3 Finish
11 Procurement information
12 Marking
13 Identification statement (reference to this document)
Bibliography