High-Precision AUMA Solution for Multiport Valves

29.10.2019
Actuator manufacturer AUMA offers a new high precision automation solution for multiport valves based on SAVEx electric actuators with adjustable motor speed.
High-Precision AUMA Solution for Multiport Valves

AUMA actuators for multiport valves combine high speed with positioning accuracy better than 0.3°, making the actuators suitable for the most challenging applications in this market. (Image source: AUMA Riester GmbH & Co. KG)

The actuators support up to 16 ports with a combination of short operating times and excellent precision, thanks to their variable speed motors. Positioning accuracy is better than 0.3°, making the actuators suitable for the most challenging applications in this market. Multiport valves with lift plug design are also supported.

Multiport valves find application in the oil and gas industry in sampling systems for multiple wellheads. Fluids from each well in turn can be directed to a single sampling system, allowing operators to monitor current production in detail. The positioning accuracy required makes this a challenging application for actuators.

AUMA’s SAVEx variable-speed actuators are ideal for this task. For rapid switching, the actuator motor runs at high speed over most of its travel. Just before the valve plug reaches the target port position, however, the speed is considerably reduced. By virtually eliminating overrun, this allows extremely precise positioning.

In high-pressure and high-temperature environments multiport valves often feature a lift plug design. This makes actuation even more demanding since two different movements have to be coordinated: before the plug can rotate to the desired port it has to be lifted from its seat. This requires a second actuator. AUMA’s clever and simple solution is to use two actuators in a master-slave configuration that appears to the DCS as a single actuator. The intelligent actuator controls handle the complete sequence of movements and the safety interlock.

AUMA has also expanded its list of communication protocols supporting multiport valve functionality: Foundation Fieldbus is now also available, in addition to Profibus DP, Modbus RTU and Modbus TCP/IP.

More articles on this topic

Patented Sealing Solution to Improve Drinking Water

14.08.2023 -

In appliances used for water purification and carbonated water, the valve of a carbon dioxide cartridge and the pressure-reducing valve on the device itself must be joined with a secure seal. Now, Freudenberg Sealing Technologies has developed a patented, high-performance polyurethane seal for a customer that has a specific geometry that not only accommodates different valve dimensions on the various gas cartridges, but also offers high impermeability under long-lasting pressure.

Read more

ITT Engineered Valves Announces New Cam-Tite Ball Valve GV Series

16.05.2023 -

ITT Inc.’s Engineered Valves announced the launch of the Cam-Tite Ball Valve GV Series, an innovative valve solution designed as a direct dimensional and upgraded replacement for severe service applications. The GV Series utilizes advanced sealing technology to isolate and contain highly hazardous liquids and gases to protect the safety of operators and prevent fugitive emissions.

Read more