AUMA SA 07.2 Multi-Turn Actuator

Overview

The AUMA SA 07.2 is the smallest frame size in AUMA’s SA multi-turn actuator range, purpose-built to automate gate valves, globe valves, and small ball or plug valves that require rotary, multi-turn operation. As part of AUMA’s long-established SA 07.2 to SA 16.2 platform, it combines a compact electric motor, worm gearing, and integral torque and position sensing in a single weatherproof housing, giving plant designers a proven, field-serviceable actuator for valve duties that do not require the higher torque output of AUMA’s larger SA frame sizes.

Backed by manufacturer datasheet documentation, Seven Star LLC proudly supplies the SA 07.2 multi-turn actuator to water treatment plants, oil and gas facilities, and industrial process sites across the Sultanate of Oman and the wider GCC. Each actuator is supplied on request, with the valve interface and control requirements confirmed at quotation before dispatch.

Operating Principle

The AUMA SA 07.2 converts the rotary output of its internal electric motor into the multi-turn rotary motion a gate or globe valve stem needs to travel from fully open to fully closed, using a worm gear stage to reduce motor speed to a usable output speed while multiplying torque. Integral torque-limiting switches protect the valve seat and stem from being over-torqued at the end of travel or in the event of an obstruction, while position sensing (mechanical or electronic, depending on the control option fitted) reports valve position back to the control system and stops the actuator precisely at the open and closed limits.

A declutchable handwheel allows the valve to be operated manually during commissioning, maintenance, or a power outage without needing to remove any part of the actuator, and the SA 07.2 automatically re-engages the electric drive train once the handwheel is disengaged, preventing an operator from accidentally leaving the valve on manual control. This combination of automatic torque protection and manual override is what makes multi-turn actuators of this design suitable for critical isolation valves where both remote automation and a manual fallback are required.

Engineering Design of the AUMA SA 07.2

The AUMA SA 07.2 is housed in a die-cast aluminum enclosure rated to IP68 as standard, allowing it to be installed outdoors, in pits, or in occasionally submerged locations without additional protection. The actuator mounts to the valve via a standard ISO 5210 or DIN 3210 output drive interface, with output drive type options (A, B, or similar) selected to match the valve’s stem design as either a rising or non-rising stem application.

Control options range from a basic actuator with torque and limit switches wired to a separate switchgear panel, up to an integrated AUMATIC or AUMA MATIC control unit mounted directly on the actuator, which adds local push-button control, a digital position/torque display, and Modbus, Profibus, or HART fieldbus communication back to the plant control system. Power supply options cover both single- and three-phase AC motors as well as DC-powered SAR variants for installations without a local AC supply, and the actuator’s terminal compartment is separated from the motor and gearing to simplify field wiring.

Key Features

The AUMA SA 07.2 is engineered as a rugged, field-proven actuator for small to medium multi-turn valve automation. Key features include:

• Tripping torque range of 10 to 30 Nm, sized for small gate, globe, and ball valve stems.
• Output speed options from 4 up to 180 rpm at 50 Hz to match valve stroke time requirements.
• IP68-rated die-cast aluminum housing suitable for outdoor, buried, or occasionally submerged installation.
• Declutchable handwheel for manual operation during commissioning, maintenance, or power loss.
• Integral torque-limiting and position/limit switching to protect the valve seat at travel end points.
• Compatibility with AUMATIC and AUMA MATIC integral controls for local display and fieldbus integration.
• ISO 5210 / DIN 3210 standard output drive interface for straightforward valve mounting.
• Single-phase, three-phase, and DC (SAR) motor variants to match available site power.

Industrial Applications

The AUMA SA 07.2 is widely used to automate isolation and control valves in water and wastewater treatment plants, district cooling networks, and utility distribution systems across Oman, where its compact torque range and IP68 housing suit both above-ground pipe racks and buried valve chambers. In oil and gas facilities and process plants throughout the GCC, the SA 07.2 is commonly specified on smaller bore gate and globe valves in utility and auxiliary systems, freeing larger AUMA SA frame sizes for the higher-torque main process isolation valves on the same site.

Working closely with plant engineers in the region, Seven Star LLC distributes the SA 07.2 multi-turn actuator to EPC contractors, valve automation packagers, and plant operators across the Sohar and Salalah economic zones, supplying both standalone actuators for existing valves and factory-mounted actuator-valve assemblies for new construction projects. Its declutchable handwheel and torque-limiting protection also make it a common retrofit choice for converting manually operated valves to remote control without replacing the valve body itself.

Technical Specifications

Key technical parameters of the AUMA SA 07.2 multi-turn actuator, the AUMA SA 07.2, are summarized below.

Request a Quote for AUMA SA 07.2

Valve automation engineers and procurement teams in Oman and the GCC can request a formal quotation for the AUMA SA 07.2 multi-turn actuator directly from Seven Star LLC. We supply AUMA SA 07.2 actuators and control accessories on request with lead time confirmed at quotation, and our instrumentation division can advise on valve interface selection and control integration for your project. With fast quotation turnaround and technical support, Seven Star LLC is your single point of contact for genuine, factory-configured SA 07.2 actuators and full technical documentation.

Browse the full AUMA range or see more Valve Actuator products supplied by Seven Star LLC in Oman and the GCC.