METSO D201190L

Description

Technical Specifications:

• Manufacturer: METSO (now Valmet/Neles)

• Product Type: Limit Switch Assembly / Analog Output Module / Valve Positioner

• Output Signal Types: 4-20mA or 0-10V (as analog output module)

• Mounting: Mechanical direct mount to actuator

Functional Features:

• Pure mechanical structure for direct terminal position sensing

• Provides reliable valve status independent of electronic positioning systems

• Eliminates common-cause failure risk associated with relying solely on electronic valve position signals

Performance Parameters:

• Direct mechanical position sensing without reliance on power or communication

• High-accuracy analog signal conversion (as output module)

Material Composition: Mechanical components with robust construction suitable for industrial environments

Structural Characteristics: Mechanical assembly directly mounted to valve actuator; senses terminal positions through mechanical linkage

Working Principle: The D201190L uses a purely mechanical structure to directly sense the terminal positions of the actuator. This provides a physical confirmation of valve position that remains available even when power or communication to electronic positioners is interrupted. In analog output configuration, the module converts digital controller commands into precise analog signals.

Advantages and Strengths:

• Eliminates common-cause failure risk in safety instrumented systems (SIS)

• Provides reliable valve status verification during power or communication failures

• Critical component for emergency shutdown (ESD) and critical operation interlock systems

• SIL-certified models available for safety loops

Applicable Industries:

• Upstream oil and gas (wellhead safety valves, production control valves)

• Oil refining and chemical (reactor feed control, distillation tower pressure and level control)

• Power generation

• Critical safety interlock loops requiring SIL certification

Model Series: Metso Automation Valve Control Series / Safety Instrumented Systems

Installation Requirements: Mechanical direct mounting to valve actuator; alignment with actuator travel range required

Usage Precautions:

• Verify mechanical compatibility with specific actuator and valve configuration

• Regular inspection of mechanical linkage for wear or misalignment

• Confirm SIL rating for safety loop applications