AUMA supplier in Romania

For AUMA we quote SA multi-turn and SQ part-turn electric actuators, SQEx explosion-proof versions, AM and AC actuator controls, GS, GK and GST gearboxes and LE linear units; we ask for the full code from the nameplate.

Headquarters: Müllheim, Germany

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Who is AUMA and what does it make?

AUMA is a German manufacturer of electric actuators for industrial valves, headquartered in Müllheim, in south-west Germany. It began in the 1960s as a two-person company in a garage, and today has over 2,800 employees worldwide. The company's concept is modular: a basic actuator, attached controls and a communication system can be combined for each valve.

The programme is grouped into actuators, gearboxes, controls and communication systems. Multi-turn actuators (SA and TIGRON series) turn the valve shaft through at least one revolution and can absorb axial forces, for example on rising-stem gate valves. Part-turn actuators (SQ series) work through less than one revolution, for butterfly valves and ball valves. Explosion-proof versions, such as SQEx, have explosion protection, and in selected configurations reach SIL 2 (safety integrity level), with ACExC 01.2 controls for SIL 3. The controls are called AM and AC. GS, GK and GST gearboxes increase torque or change the axis, and LE linear units convert an SA actuator to linear motion for globe valves.

AUMA appears on installations in the water, energy, and oil and gas sectors. For a quotation we need the code from the nameplate, torque and speed, supply voltage, type of control and connection flange. The definitions in the programme follow ISO 22153: a multi-turn actuator transmits torque through at least one revolution, and a part-turn one through less than one revolution.

What do we supply from the AUMA range?

Product	Description
SA and TIGRON	Multi-turn electric actuators with hollow output shaft, for valves that need several revolutions and axial forces, for example rising-stem gate valves. They can be combined with gearboxes and linear units.
SQ and SQEx	Part-turn actuators for butterfly and ball valves, with internal end stops at the handwheel. SQEx is the explosion-proof version for areas with explosion hazard, with electrical connection through an AUMA plug and socket.
AM and AC	Microprocessor-based actuator controls, combinable with SA and SQ actuators. They allow local setting without connection to the control system (DCS), and the explosion-proof versions and those applicable up to SIL 3 with ACExC 01.2 meet safety requirements.
GS, GK, GST, LE gearboxes	Part-turn (GS) and multi-turn (GK, GST) gearboxes and linear units (LE). They are used to increase torque, move the output axis or convert rotary motion into linear motion for globe valves.

Why AUMA?

Modular concept: actuator, control and communication combined according to the need of each valve
The .2 generation: SA .2 and SQ .2 actuators on the same technical platform, with AM and AC controls
SQEx explosion-proof versions, certified for areas with explosive atmospheres, with SIL 2 in selected configurations
GS part-turn gearboxes, with nominal torques of up to 675,000 Nm, combined with SA actuators
Duty classes A, B, C and D: choice of actuator according to how often the valve is operated

Which AUMA codes and series are requested most often?

Code	Description
SA	Multi-turn electric actuator
TIGRON	Multi-turn actuator for heavy loads
SQ	Part-turn electric actuator
SQEx	Explosion-proof part-turn actuator
AM	Microprocessor-based actuator control
AC	Actuator control with extended functions
ACExC 01.2	Explosion-proof control, applicable up to SIL 3
GS	Part-turn gearbox
GK	Multi-turn gearbox with bevel gearing
GST	Multi-turn gearbox with spur gearing
LE	Linear thrust unit
GHE	Part-turn gearbox with marine manual operation

Where is AUMA equipment used?

Water and wastewater: operation of valves and dampers in treatment plants
Energy: valves with duty classes from A to D
Oil and gas: SQEx explosion-proof versions for areas with explosion hazard
Chemical and process industry: control valves with AM and AC controls
Marine: GHE gearboxes for manual operation of part-turn valves on ships

How do we supply AUMA in Romania?

We can quote AUMA actuators, controls and gearboxes based on the existing nameplate or the requirements of the valve. We bring them in to order, through EU supply channels, usually in 1–4 weeks; for simple spare parts, the lead time can be 24–72 h when the item is available at the supplier. Actuators configured for a specific valve may need a longer lead time. Send us the full code (for example the SA or SQEx series), torque and speed, voltage, type of control, protection required and the flange on which the actuator is mounted. The final lead time is confirmed in the quotation.

We cannot commission the actuators on site and we do not confirm the actuator-valve combination without the torque data and the connection flange details.

Frequently asked questions about AUMA

What does AUMA produce?

AUMA produces multi-turn and part-turn electric actuators for valves, gearboxes, actuator controls (AM, AC), communication systems and accessories. The equipment is used to automate valves in water, energy, oil and gas, and the chemical industry.

How do I choose between an SA and an SQ actuator?

If the valve needs several revolutions or absorbs axial force, as on a rising-stem gate valve, SA is chosen. For butterfly and ball valves, which turn through less than one revolution, SQ is used. Send the type of valve, the torque required and the operating time.

How long does it take to receive an AUMA actuator in Romania?

Actuators are brought in to order, through EU supply channels or by import, usually in 1–4 weeks. Those configured with control and explosion protection may take longer. Small parts are possible in 24–72 h when the item is available at the supplier. The exact lead time appears in the quotation.

Can I replace an older AUMA actuator with a newer generation?

Often it is possible, but we do not confirm compatibility up front. Send the actuator nameplate, the type of connection flange, the torque, the voltage and a photo of the control. With these details we check whether the .2 generation fits the existing installation. If the photo of the control is missing, send at least the nameplate.

What information do I need for a quotation for an explosion-proof actuator?

State the zone class, the gas group and the maximum surface temperature required, the torque and speed, the duty class (A–D) and the type of control. If the valve has its own certificates, add them; on that basis we look for the suitable SQEx and ACExC combination.

How do I request a AUMA quotation?

Send the AUMA code from the nameplate and the quantity; we reply in English with availability and the lead time written in the quotation.