SMVI Valve with Advanced Analog and Digital Interfaces
*
11-09-2026
Orangeburg, NY — November 2026 — Aalborg Instruments announces the release of its
new SMVI Intelligent Control Valve Series, representing a significant advancement over the company's long-established SMV motorized valve technology.
The completely redesigned SMVI Series retains the control capabilities of the original SMV valves while introducing expanded analog interfaces and a new optically isolated RS-485 digital communication interface for direct integration with PLCs, computers, and automated process control systems.
The SMVI supports four selectable operating modes: Analog Position Control, Digital RS-485 Control, legacy SMV Direction/Speed Control, and Step Clock/Direction Control. Expanded analog input options include 0–5 Vdc, 1–5 Vdc, 0–10 Vdc, and 4–20 mA. The new digital interface enables remote valve positioning, configuration, and monitoring through ASCII commands, with commanded valve opening resolution of 0.01%.
Featuring a high-precision linear stepping motor, the SMVI provides accurate and repeatable valve positioning without the coil heating and electromagnetic hysteresis associated with conventional solenoid valves.
Available in aluminum or 316 stainless steel configurations, the SMVI20, SMVI30, and SMVI40 models accommodate gas and liquid applications, with maximum rated flow capacities up to 1,000 sL/min for air and 28 L/min for water.
Combining proven SMV functionality with modern digital connectivity, the new SMVI Series offers greater control flexibility for laboratory instrumentation, industrial automation, and process control applications.
