SIST EN ISO 1179-2:2023 PDF

Connections for general use and fluid power - Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing - Part 2: Heavy-duty (S series) and light-duty (L series) stud ends with elastomeric sealing (type E) (ISO 1179-2:2022)

Title (English):

SIST EN ISO 1179-2:2023

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 16
Publication date:: December 7, 2022
Edition:: ISO 1179-2:2022
ICS:: 23.100.40

Document language:

enru

Delivery time:1–7 days

Price:60 €

Description (English):

This document specifies the dimensions, performance requirements and test procedures for heavy-duty (S series) and light-duty (L series) stud ends with threads, and the elastomeric sealing (type E) that is used with them as defined in ISO 228-1. Heavy-duty (S series) stud ends with type E sealing in accordance with this document can be used at working pressures up to 63 MPa (630 bar). Light-duty (L series) stud ends with type E sealing in accordance with this document can be used at working pressures up to 25 MPa (250 bar). The permissible working pressure depends upon size, materials, design, working conditions, application, etc. This document is applicable to connectors detailed in ISO 8434-1, ISO 8434-2 and ISO 8434-6. NOTE The Introduction gives recommendations for ports and stud ends to be used for new designs in hydraulic and pneumatic fluid power applications.

Technical details

Technical committee: IFEK - Ferrous metals
SKU: SIST EN ISO 1179-2:2023

Abstract

Overview

EN ISO 1179-2:2022 specifies dimensions, performance requirements and test procedures for stud ends (male connectors) with ISO 228-1 threads using elastomeric sealing (type E). It covers two series:

Heavy‑duty (S series) - suitable for working pressures up to 63 MPa (630 bar).
Light‑duty (L series) - suitable for working pressures up to 25 MPa (250 bar).

The standard applies to connectors detailed in ISO 8434-1, ISO 8434-2 and ISO 8434-6, and replaces the earlier edition (EN ISO 1179-2:2013).

Key topics and technical requirements

Dimensions and tolerances for stud ends and mating ports based on ISO 228-1 thread geometry.
Elastomeric seal specifications (type E), including material requirements and hardness references (e.g., ISO 48-2).
Performance requirements: rated working pressures for S and L series with caveats that permissible pressure depends on size, materials, design and application.
Test procedures and reporting: test methods and test-reporting requirements aligned with ISO 19879 (metallic tube connection test methods).
Interchangeability warning: explicit caution about hazards from mixing stud ends and ports of different types - important for safety and system integrity.
Designation and identification: standardized naming and marking to ensure correct component selection and traceability.
Updates from previous edition include added material requirements for elastomeric seals, revised test method references and clarified reuse guidance.

Practical applications and who uses this standard

Hydraulic and pneumatic system designers selecting threaded ports and stud ends for fluid power applications.
Manufacturers of tube fittings, hose fittings, and hydraulic connectors ensuring dimensional and performance compliance.
OEMs, procurement teams and maintenance engineers specifying components for high‑pressure hydraulic systems in mobile equipment, industrial machinery and test rigs.
Test laboratories and certification bodies conducting conformity and pressure testing per the referenced procedures.
Standards and safety engineers assessing interchangeability and compatibility risks when retrofitting or servicing existing systems.

Related standards

ISO 228-1 (thread form and dimensions)
ISO 8434-1, ISO 8434-2, ISO 8434-6 (connector families)
ISO 19879 (test methods for hydraulic connections)
ISO 48-2 (elastomer hardness test)
Guidance: ISO 6149 and ISO 16030 recommended for new hydraulic/pneumatic designs (see Introduction)

This standard is essential when specifying or validating threaded stud ends with elastomeric sealing in pressure-critical fluid power systems. Keywords: EN ISO 1179-2:2022, stud ends, ISO 228-1, elastomeric sealing, heavy‑duty S series, light‑duty L series, hydraulic connectors.

Related standards

Standards mentioned in the description

Abstract

Overview

Heavy‑duty (S series) - suitable for working pressures up to 63 MPa (630 bar).
Light‑duty (L series) - suitable for working pressures up to 25 MPa (250 bar).

The standard applies to connectors detailed in ISO 8434-1, ISO 8434-2 and ISO 8434-6, and replaces the earlier edition (EN ISO 1179-2:2013).

Key topics and technical requirements

Dimensions and tolerances for stud ends and mating ports based on ISO 228-1 thread geometry.
Elastomeric seal specifications (type E), including material requirements and hardness references (e.g., ISO 48-2).
Performance requirements: rated working pressures for S and L series with caveats that permissible pressure depends on size, materials, design and application.
Test procedures and reporting: test methods and test-reporting requirements aligned with ISO 19879 (metallic tube connection test methods).
Interchangeability warning: explicit caution about hazards from mixing stud ends and ports of different types - important for safety and system integrity.
Designation and identification: standardized naming and marking to ensure correct component selection and traceability.
Updates from previous edition include added material requirements for elastomeric seals, revised test method references and clarified reuse guidance.

Practical applications and who uses this standard

Hydraulic and pneumatic system designers selecting threaded ports and stud ends for fluid power applications.
Manufacturers of tube fittings, hose fittings, and hydraulic connectors ensuring dimensional and performance compliance.
OEMs, procurement teams and maintenance engineers specifying components for high‑pressure hydraulic systems in mobile equipment, industrial machinery and test rigs.
Test laboratories and certification bodies conducting conformity and pressure testing per the referenced procedures.
Standards and safety engineers assessing interchangeability and compatibility risks when retrofitting or servicing existing systems.

Related standards

ISO 228-1 (thread form and dimensions)
ISO 8434-1, ISO 8434-2, ISO 8434-6 (connector families)
ISO 19879 (test methods for hydraulic connections)
ISO 48-2 (elastomer hardness test)
Guidance: ISO 6149 and ISO 16030 recommended for new hydraulic/pneumatic designs (see Introduction)

SIST EN ISO 1179-2:2023 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Practical applications and who uses this standard

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Practical applications and who uses this standard

Related standards

Related standards

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