In many cases, a rotary actuator cannot or must not be mounted directly on the valve without mounting accessories. We not only offer you the right adapters for this, but also the design of the right mounting parts. Simply send us the data sheets for the valve and actuator with your request, along with the details of the respective size and nominal width that you want to combine. We'll take care of the rest. This saves you a lot of time and we also provide a full guarantee for the accuracy of the fit.
Adaptors - ARE | Eurotec
Eurotec ARE Adaptors
Eurotec ARE adaptors (coupling blanks) are mechanical interface components for connecting rotary actuators to valve shafts. They are used when direct actuator-to-valve connection is not possible due to mismatched shaft geometry, height, or drive configuration. The actuator side of the ARE is machined to match the actuator output, while the valve side is supplied either blank or semi-machined for final adaptation to the specific valve shaft.
Role in Installation
The ARE is installed between the actuator output and the valve stem. It does not contact the process medium. Its function is strictly mechanical: torque transmission and compensation for dimensional or geometric mismatches between actuator and valve interfaces.
Typical assemblies include:
- ball valves,
- butterfly valves,
- plug valves,
- pneumatic or electric rotary actuators,
- retrofit applications where the existing valve does not have a standardized drive.
Selection Criteria
ARE selection is based on valve and actuator datasheets. Eurotec specifies that information on the valve, actuator, size, and DN is required to design the correct mounting parts.
Key parameters:
- valve shaft type: square, keyed, double-D, or custom machining,
- actuator output dimension,
- required torque,
- coupling height,
- ISO 5211 flanges,
- tolerances and alignment.
Technical Note
Incorrect machining of the coupling can cause eccentric loading, increased operating torque, stem packing wear, or incomplete valve closure. ARE adaptors should be specified together with the appropriate bracket or mounting kit.
Certifications
Eurotec ARE adaptors are manufactured under DIN EN ISO 9001:2015 and ISO/IEC 80079-34 for equipment intended for explosive atmospheres. Ex suitability applies to the complete assembly, not just the mechanical adaptor.
FAQ
When is ARE used?
When mechanical adaptation is required between valve shaft and actuator output.
What is checked during maintenance?
Mechanical play, fastener tightness, corrosion, alignment, coupling wear, and increased operating torque.
Datasheet and documents
Description
Certificates
DIN EN ISO 9001:2015
EUROTEC Antriebszubehör GmbH is a company certified according to ISO 9001-2015. The certification body of TÜV SÜD Management Service GmbH certifies that our company is certified for system components for the automation of industrial valves in the areas of
- Development
- Production
- Distribution
has introduced and successfully applies a quality management system
ISO/IEC 80079-34 (ATEX-QM)
EUROTEC Antriebszubehör GmbH is a certified manufacturer of devices and protective systems for intended use in potentially explosive atmospheres in accordance with Directive 2014/34/EU and the quality management standard ISO IEC 80079-34. We are audited annually and attach great importance to safe processes for the manufacture of absolutely safe and reliable products.
You can download the following certificates here:
For further questions about explosion protection, ask our experts
EU declaration of conformity
With our products we meet the requirements of the Machinery Directive 2006/42/EC as well as the Low Voltage Directive 2014/35/EU and the EMC Directive 2014/30/EU.
You can download the EU declarations of conformity for the standard range here:
The ATEX declarations of conformity for the explosion-proof products can be found on the product pages directly for the respective limit switch box series.
SIL
For use in safety-relevant systems and processes, we have carried out an FMEDA for our limit switch boxes and solenoid valves in collaboration with exida and classified our products into the corresponding SIL levels. Our products meet the criteria from SIL 1 to SIL 3.
You can download the SIL declarations of conformity here:
For more information, ask our experts.
EAC-TR (Russia)
Our limit switch boxes are also certified according to the Russian standard EAC TR CU 004 and TR CU 012. You can download the certificate for the explosion-proof area here:
EAC approval for limit switch boxes (Ex-protected)
CCC (China)
Our limit switch boxes are also certified according to the Chinese standard CCC, CNCA-C23-01:2019. You can download the certificates here:
UKCA (England)
Our products for explosion-proof areas are also certified according to the British standard UKCA, UKSI 2016:1107.
ROHS
EUROTEC Antriebszubehör GmbH is aware of its responsibility towards the environment and people.
We attach great importance to the greatest possible transparency in the supply chain and provide all information to the best of our knowledge and belief.
REACH
EUROTEC Antriebszubehör GmbH is aware of its responsibility towards the environment and people.
We attach great importance to the greatest possible transparency in the supply chain and provide all information to the best of our knowledge and belief.
Regulation EC 1907/2006 (REACH)
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