Intelligent Actual-position Feedback Unit for Pneumatic Linear Valves

17.12.2021
When developing its new intelligent actual-position feedback unit of the type SK-i LED, the KSB Group company SISTO Armaturen S.A. attached particular importance to meeting the special requirements of biotechnology, fine chemicals and the pharmaceutical industry.
Intelligent Actual-position Feedback Unit for Pneumatic Linear Valves

Intelligent actual-position feedback of the type SISTO-SK-i LED for mounting on pneumatic linear valves (Image source: KSB SE & Co. KGaA)

The unit continuously measures the valve travel. The limit positions of the valve are saved in the microcontroller, doing away with the need for time-consuming manual settings. Initialisation can be carried out automatically on site based on an integrated magnetic sensor or remotely from a control station using a process control system.

SISTO-SK-i LED is connected via an M12 connector (24 V). It is ready for operation as soon as initialisation is complete. Key information such as valve position, readiness for operation and any faults are indicated by colour-coded high-visibility LEDs. In this way the valve's status can reliably be recognised, regardless of its installation position. Optionally, SISTO-SK-i LED is available with an AS interface.

The user can also add a 3/2-way solenoid valve for single-acting pneumatic actuators in the plastic or stainless steel IP65-compliant housing.

With its smooth surface the unit is easy and efficient to clean. For special requirements a stainless steel variant (1.4404) is available.

More articles on this topic

KSB Reports a Strong Third Quarter of 2025

11.11.2025 -

Pump and valve manufacturer KSB continued the positive trend of the first half of 2025 in the third quarter too, despite facing challenging conditions. Order intake, sales revenue and earnings before finance income / expense and income tax (EBIT), adjusted for the costs of introducing SAP S/4HANA, were up on the comparative prior-year period.

Read more

KSB Strengthens Service Expertise in Australia

01.10.2025 -

Through the expansion of its location in Bundamba, Queensland, KSB Australia Pty Ltd is responding to the growing demand in the wastewater market. The new buildings offer a significantly larger warehouse capacity for water and waste water products, which will shorten delivery times and increase the reliability of supply for customers.

Read more

KSB Announces Half-Year Figures for 2025

13.08.2025 -

The Frankenthal-based pump and valve manufacturer KSB continued the positive trend of the 2024 financial year in the first six months of 2025, despite facing challenging conditions. Order intake and sales revenue as well as earnings before finance income / expense and income tax (EBIT), adjusted for the costs of introducing SAP S/4HANA, were up on the comparative half of the previous year.

Read more

New Submersible Motor Pumps with Axial Propeller

11.08.2025 -

In July 2025, KSB SE & Co. KGaA has launched a new generation of submersible motor pumps with axial propellers on the market. The AmaCan P type series is designed to transport large volumes of municipal or industrial water as well as waste water from stormwater, drainage and irrigation pumping stations.

Read more