ISO 14540:2013
(Main)Hydraulic fluid power — Dimensions and requirements for screw-to-connect quick-action couplings for use at a pressure of 72 MPa (720 bar)
Hydraulic fluid power — Dimensions and requirements for screw-to-connect quick-action couplings for use at a pressure of 72 MPa (720 bar)
ISO 14540:2013 specifies dimensional and performance requirements for hydraulic screw-to-connect quick-action couplings designed to be used at pressure of 72 MPa (720 bar) in static conditions as an interface between a hydraulic power unit and a tool. Typical applications for these couplings are related to hydraulic jacks, rams, clamping devices, hand tools, and cylinders. ISO 14540:2013 covers two types of such couplings: the "P" type, which has a poppet valve, and the "S" type, which has a spherical valve.
Transmissions hydrauliques — Dimensions et exigences des raccords rapides de type à visser pour usage à une pression de 72 MPa (720 bar)
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 14540
First edition
2013-03-15
Hydraulic fluid power — Dimensions
and requirements for screw-to-
connect quick-action couplings for use
at a pressure of 72 MPa (720 bar)
Transmissions hydrauliques — Dimensions et exigences des raccords
rapides de type à visser pour usage à une pression de 72 MPa (720 bar)
Reference number
©
ISO 2013
© ISO 2013
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ii © ISO 2013 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensional requirements . 1
5 Performance requirements . 3
6 Best practice . 3
7 Designation . 4
8 Marking . 4
9 Identification statement (reference to this International Standard) . 4
Annex A (normative) Basic dimensions of the 1-18 UNS inch screw thread .5
Bibliography . 6
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
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Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
The committee responsible for this document is ISO/TC 131, Fluid power systems, Subcommittee SC 4,
Connectors and similar products and components.
iv © ISO 2013 – All rights reserved
Introduction
In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure
within an enclosed circuit.
Screw-to-connect quick-action couplings conforming to this International Standard are designed to join
or separate fluid conductors ensuring, at the same time, sufficient resistance and safety in applications
characterized by very high working pressures up to 72 MPa (720 bar).
INTERNATIONAL STANDARD ISO 14540:2013(E)
Hydraulic fluid power — Dimensions and requirements
for screw-to-connect quick-action couplings for use at a
pressure of 72 MPa (720 bar)
1 Scope
This International Standard specifies dimensional and performance requirements for hydraulic screw-
1)
to-connect quick-action couplings designed to be used at pressure of 72 MPa (720 bar ) in static
conditions as an interface between a hydraulic power unit and a tool. Typical applications for these
couplings are related to hydraulic jacks, rams, clamping devices, hand tools, and cylinders.
This International Standard covers two types of such couplings: the “P” type, which has a poppet valve,
and the “S” type, which has a spherical valve.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including amendments) applies.
ISO 725, ISO inch screw threads — Basic dimensions
ISO 5598, Fluid power systems and c
...
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