ISO 13948-1:2015
Diesel engines — Fuel injection pumps and fuel injector low-pressure connections — Part 1: Threaded connections
ISO 13948-1:2015 specifies dimensions and requirements for mechanical, threaded connections used on diesel fuel injection pumps and fuel injectors for the connection of low-pressure fuel, lubrication oil or air supply.
Five types of threaded connections (types A to E) are described in this part of ISO 13948. Type A is commonly used for both pumps and injectors, while types B to E are for diesel fuel injection pumps only.
NOTE: Low-pressure connections to fuel filters are covered in other International Standards; see the Bibliography. High-pressure end-connections for pumps and injectors are covered in ISO 2974
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Connection designs and applications
4.1 General
4.2 Types of connection
4.2.1 Type A: banjo connection (see Figure 1)
4.2.2 Type B: O-ring seal connection (see Figure 2)
4.2.3 Type C: compression seal connection (see Figure 3)
4.2.4 Type D: internal rubber ring seal “flexible” connection (see Figure 4)
4.2.5 Type E: external rubber ring seal “flexible” connection (see Figure 5)
5 Dimensions and tolerances
6 Designation
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Connection designs and applications
4.1 General
4.2 Types of connection
4.2.1 Type A: banjo connection (see Figure 1)
4.2.2 Type B: O-ring seal connection (see Figure 2)
4.2.3 Type C: compression seal connection (see Figure 3)
4.2.4 Type D: internal rubber ring seal “flexible” connection (see Figure 4)
4.2.5 Type E: external rubber ring seal “flexible” connection (see Figure 5)
5 Dimensions and tolerances
6 Designation
Bibliography