ISO 10770-1:2009 PDF

Name: ISO 10770-1:2009 — Hydraulic fluid power — Electrically modulated hydraulic control valves — Part 1: Test methods for four-port directional flow-control valves
SKU: ISO 10770-1:2009
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Hydraulic fluid power — Electrically modulated hydraulic control valves — Part 1: Test methods for four-port directional flow-control valves

Название (английский):

ISO 10770-1:2009

Hydraulic fluid power — Electrically modulated hydraulic control valves — Part 1: Test methods for four-port directional flow-control valves

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 32
Дата публикации:: 30 сентября 2009 г.
Издание:: ISO IS 10770 edition 2 version 1
ICS:: 23.100.50

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Описание (английский):

ISO 10770-1:2009 describes methods for determining the performance characteristics of electrically modulated, hydraulic, four-port directional flow-control valves. ISO 10770-1:2009 describes methods of testing electrohydraulic, four-port directional flow-control valves. This type of electrohydraulic valve controls the direction and flow in a hydraulic system.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 10770-1:2009 - Hydraulic fluid power - Electrically modulated hydraulic control valves - Part 1: Test methods for four‑port directional flow‑control valves - defines standardized test methods for determining the performance characteristics of electrically modulated, four‑port directional flow‑control (electrohydraulic) valves. The standard promotes consistency of valve performance data for system design and comparison by specifying standard test conditions, instrumentation accuracy, test circuits and required steady‑state and dynamic measurements.

Key Topics and Requirements

Scope & purpose

Methods for testing four‑port, electrically modulated directional flow‑control valves that control both flow and direction.

Standard test conditions

Ambient temperature: 20 °C ± 5 °C; fluid viscosity and cleanliness specified (e.g., VG32, 32 cSt ± 8 cSt); return pressure per manufacturer.

Test installation

Minimum test circuit (flow source, relief valves, transducers, amplifier) and safety considerations; input signals applied to the amplifier for hydraulic tests.

Instrument accuracy & dynamic range

Measurement accuracy requirements consistent with Class B of ISO 9110‑1 (flow, pressure, temperature, input signal, resistance).

Electrical tests (valves without integrated electronics)

Coil resistance (cold/hot), optional coil inductance method, insulation resistance tests.

Performance tests

Steady‑state tests: internal leakage; metering output (flow vs input) to derive rated flow, flow gain, linearity, hysteresis, symmetry, threshold and spool lap condition.
Dynamic tests: response, phase lag, dither effects and frequency response.

Reporting

Standardized presentation of results and required test report elements.

Applications

ISO 10770-1:2009 is used to:

Validate and compare valve performance data for hydraulic system design.

Support product development, quality control and acceptance testing for electrohydraulic valves.

Provide test methods for component suppliers, OEMs and independent test laboratories to produce reproducible performance curves (flow gain, pressure drop, leakage, dynamic response).

Related Standards

ISO 10770 series (Part 2: three‑way valves; Part 3: pressure control valves)

ISO 1219‑1 (graphic symbols), ISO 3448 (viscosity grades), ISO 4406 (fluid cleanliness), ISO 5598 (vocabulary), ISO 9110‑1 (measurement accuracy), IEC 60617.

Using ISO 10770‑1:2009 ensures consistent, comparable test data for electrically modulated hydraulic valves, improving system reliability and enabling accurate component selection.

ISO 10770-1:2009 PDF

Abstract

Похожие стандарты

Overview

Key Topics and Requirements

Applications

Who should use this standard

Related Standards

Технические детали

SIST ISO 9110-1:2021

Hydraulic fluid power -- Measurement techniques

BS ISO 10770-1:2009

Hydraulic fluid power. Electrically modulated hydraulic control valves. Test methods for four-port directiona…

ISO 1219-1:2012/Amd 1:2016

Fluid power systems and components — Graphical symbols and circuit diagrams — Part 1: Graphical symbols for c…

ISO 3448:1975

Industrial liquid lubricants — ISO viscosity classification

BS ISO 4406:2021

Hydraulic fluid power. Fluids. Method for coding the level of contamination by solid particles.

ISO 5598:1985

Fluid power systems and components — Vocabulary