Ari Armaturen STEVI Vario Control Valve (Flanged PN25, Nodular Iron Body, Electric Actuator)

The Ari Armaturen STEVI Vario Control Valve with PN25 flanged connections, a nodular iron body, and a responsive electric actuator delivers precise modulation for a wide range of industrial flow applications. Engineered for efficiency and reliability, this valve ensures accurate regulation of steam, liquids, or gases — helping optimise performance across heating systems, process control loops, and general industrial networks.

The nodular cast iron body offers excellent mechanical strength, resistance to corrosion, and improved flexibility over standard grey iron, making it suitable for demanding operating conditions while remaining cost-effective. Its PN25 pressure rating supports medium-pressure systems commonly found in HVAC, district heating, and light process applications. The integrated electric actuator enables automated control with excellent positioning accuracy, supporting seamless integration into modern control systems such as PLCs or SCADA environments.

Thanks to its modular design and adaptable configuration, the STEVI Vario is a dependable choice for users looking for durability, operational precision, and reduced manual intervention in flow control processes.

Key Features

Electric Actuation
Allows for remote and automatic valve positioning with high precision and minimal delay.

Nodular Iron Body
Strong, ductile material with good pressure and thermal resistance, ideal for industrial service.

PN25 Flanged Ends
Standardised connection for easy integration into medium-pressure pipeline systems.

Modulating Control
Perfect for throttling applications requiring accurate flow, pressure, or temperature adjustment.

Compact, Service-Friendly Design
Modular layout simplifies installation, servicing, and future upgrades.

Ideal for Utility and Process Applications
Commonly used in steam distribution, heating circuits, water treatment, and plant automation.