Valves with ATEX approval for application in explosive atmospheres
Explosive mixtures can develop in many applications in industry. Valves that can be used in these areas require an approval in accordance with Directive 2014/34/EU (ATEX). The HYDAC ATEX valve range is geared precisely towards these requirements.
6 min reading time
Food & Beverage Oil & Gas Scrap & Waste Recycling Topics & Products ATEX certification
Initial situation
Explosive mixtures can develop in many applications, for example chemicals, pharma, food technology, refineries, recycling and mills. Valves that can be used in these areas (for example) require an approval in accordance with Directive 2014/34/EU (ATEX). At the same time, there should be no compromises in the valves’ performance.
The HYDAC ATEX valve range is geared precisely towards these requirements. The ATEX approval covers various coils for a range of valve types (cartridge and CETOP valves) from the product portfolio. Furthermore, the portfolio is supplemented by hydraulic valves with their own manufacturer’s declaration for ATEX applications.
The range is suitable for applications in the following ATEX protection areas
Levels of protection
Level of protection | Category group | Protective performance | Operating conditions |
|---|---|---|---|
| Very high | M1 | Two independent protective measures: safe even if two errors occur independently. | Devices remain ready for use and are operated in an explosive atmosphere. |
| Very high | 1 | Two independent protective measures: safe even if two errors occur independently. | Devices remain ready for use and are operated in zones 0, 1, 2 (G) and 20, 21, 22 (D). |
| High | M2 | Suitable for normal operation and difficult operating conditions. Where applicable, even for disruptions that occur frequently or errors that are generally taken into account. | Devices are switched off in the case of an explosive atmosphere. |
| High | 2 | Safe for normal operation and for typical disruptions and errors. | Devices remain ready for use and are operated in zones 1, 2 (G) and/or 21, 22 (D). |
| Normal | 3 | Safe in normal operation. | Devices remain ready for use and are operated in zone 2 (G) and/or 22 (D). |
As an in-house manufacturer of coils and valves, HYDAC produces ATEX valves that meet the relevant electric and mechanical requirements.
The range includes the following valves:
Industrial solenoid valves in directional valve design for ATEX zone II 2G, II 2D, II 3G, II 3DCurrently available 4/2 and 4/3 directional solenoid valves, nom. size 6
All other valve types from the directional valve product range nom. size 6 on request.
