11 August, 2022

Functional safety in electrohydraulics

01 August, 2018

Atos claims to be the only worldwide manufacturer offering a full range of proportional and conventional valves designed for functional safety and certified by a notified body.

The Machine Directive 2006/42/EC with relevant harmonised standards IEC 61508 Safety Integrity Level (SIL) and ISO 13849 Performance Level (PL) define the general principles concerning machine safety, which manufacturers have to consider to limit risk related to machine operation.

Atos certified proportional valves meet these standards by performing the safety function in addition to standard axis motion control. By keeping the on-board diagnostics active when removing solenoid power, Atos valves confirm when a safe spool position has been reached.

The valves are certified by TÜV in compliance with ISO 13849 up to category 4, PL e and IEC 61508 up to SIL 2 / SIL 3. Atos safety valves help in limiting potential risks to equipment or operators, preventing dangerous movements of electrohydraulic axes during production cycles or emergency conditions.

Certified safety valves eliminate the need for machine manufacturers to validate such components comply with the applicable safety standards. This saves considerable amounts of time during the machine design phase and the system certification process.

Of course, actual system SIL and PL levels do not depend only on the characteristics of single components but also on the hydraulic system architecture and diagnostic coverage.

Atos specialists are available and ready to support customers in the tuning of the best safety electrohydraulics solution for their application.


Buyers' Guide Search
Search for UK supplier by name
Browse by Product Group.
JUNE 2022 Issue To view a digital copy of the JUNE 2022 issue of Hydraulics & Pneumatics Magazine, click here.

APRIL/MAY 2022 IssueTo view a digital copy of the APRIL/MAY 2022 edition of Hydraulics & Pneumatics Magazine, click here.

For a FREE subscription please click here

July/August 2021 Annual Buyers' GuideTo view a digital copy of the JULY/AUGUST edition of Hydraulics & Pneumatics Magazine, click here.

For a FREE subscription please click here

BFPA YearbookTo read the latest BFPA Yearbook, click here
BFPA Training AcademyClick the image to go to the BFPA Training Academy website
Compressed Air & Vacuum Technology Guide 2018To read the official BCAS Compressed Air & Vacuum Technology Guide 2018 click here
Offshore Europe JournalOEE
Super Swivels
Impulse Automation Limited was established in 1960 and is based in the United Kingdom. We are an importer and distributor of mechatronic components used in a wide variety of industry sectors.Impulse Automation Limited
Hy-Pro FiltrationWEB LOCATOR