NF ISO 10770-2

February 2013

Standard Current

Hydraulic fluid power - Electrically modulated hydraulic control valves - Part 2 : test methods for three-port directional flow-control valves

ISO 10770-2:2012 describes methods for determining the performance characteristics of electrically modulated hydraulic three-port directional flow-control valves.

This type of electrohydraulic valve controls the direction and amount of hydraulic flow in a hydraulic system.

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Main informations

Collections

National standards and national normative documents

Publication date

February 2013

Number of pages

43 p.

Reference

NF ISO 10770-2

ICS Codes

23.100.50 Control components

Classification index

E48-440-2

Print number

1 - 30/01/2013

International kinship

ISO 10770-2:2012

Sumary

Hydraulic fluid power - Electrically modulated hydraulic control valves - Part 2 : test methods for three-port directional flow-control valves

ISO 10770-2:2012 describes methods for determining the performance characteristics of electrically modulated hydraulic three-port directional flow-control valves.

This type of electrohydraulic valve controls the direction and amount of hydraulic flow in a hydraulic system.

Replaced standards (1)

NF ISO 10770-2

January 1999

Standard Cancelled

Hydraulic fluid power. Electrically modulated hydraulic control valves. Part 2 : test methods for three-way directional flow control valves.

Le présent document spécifie les méthodes d'essai de réception à la production et de qualification des distributeurs à modulation électrique à trois voies utilisés dans les systèmes de transmissions hydrauliques.

Table of contents

Avant-propos
iv
Introduction
v
1 Domaine d'application
1
2 Références normatives
1
3 Termes, définitions, symboles et unités
1
3.1 Termes et définitions
1
3.2 Symboles et unités
2
4 Conditions d'essai normalisées
3
5 Installation d'essai
3
6 Exactitude
6
6.1 Exactitude des instruments
6
6.2 Plage dynamique
6
7 Essais électriques des distributeurs sans électronique intégrée
6
7.1 Généralités
6
7.2 Résistance de la bobine
6
7.3 Inductance de la bobine - essai facultatif
6
7.4 Résistance d'isolement
8
8 Essais de performance
9
8.1 Essais en régime stationnaire
9
8.2 Essais dynamiques
23
9 Essai d'impulsion de pression
32
10 Présentation des résultats
32
10.1 Généralités
32
10.2 Rapports d'essai
32
11 Phrase d'identification (référence à la présente partie de l'ISO 10770)
34
Annexe A (informative) Lignes directrices pour les essais
35

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