SAMSON TROVIS SAFE 3730-6 TS Digital Valve Positioner | SIL Certified | HART Communication | Safety Instrumented System

Product Description

SAMSON TROVIS SAFE 3730-6 TS – SIL-Certified Digital Electropneumatic Valve Positioner

The SAMSON TROVIS SAFE 3730-6 TS Digital Valve Positioner is a safety-certified electropneumatic positioner manufactured by SAMSON AG, Germany. It is specially designed for pneumatic on/off control valves used in Safety Instrumented Systems (SIS) across critical industrial applications.

Unlike conventional digital valve positioners, the TROVIS SAFE 3730-6 TS is designed for safety-related valve applications where reliable emergency valve operation and functional safety are essential. It is certified according to IEC 61508 and supports safety applications up to SIL 2 in a single-device configuration and SIL 3 in a redundant configuration, subject to the applicable safety assessment and installation requirements.

The positioner receives a standard 4–20mA DC control signal from a safety PLC, process controller or compatible automation system. It monitors the valve position and controls the pneumatic actuator to achieve the required operating or fail-safe position.

The TROVIS SAFE 3730-6 TS features integrated HART communication, EXPERTplus diagnostic technology, automatic initialization and partial stroke testing. Its integrated pressure sensors monitor both instrument air supply pressure and actuator signal pressure, helping maintenance engineers identify pneumatic problems before they affect process safety.

For industrial customers in Bangladesh, this positioner is particularly suitable for power plants, oil and gas facilities, chemical industries, boiler protection systems, pharmaceutical manufacturing and critical process control applications.

6. Technical Specifications

Specifications are based on SAMSON datasheet T 8384-6S EN. Explosion-protected versions may have additional restrictions.

7. Key Features and Benefits

• Genuine SAMSON Germany TROVIS SAFE positioner.

• SIL-certified design according to IEC 61508.

• Suitable for safety-instrumented valve applications.

• SIL 2 single-device and SIL 3 redundant configurations.

• 4–20mA DC input signal.

• Integrated HART communication.

• Automatic emergency valve positioning.

• EXPERTplus advanced valve diagnostics.

• Integrated partial stroke testing.

• Integrated supply air pressure sensor.

• Integrated actuator signal pressure sensor.

• Automatic valve initialization.

• LCD display with rotary pushbutton operation.

• NAMUR NE 107 diagnostic status monitoring.

• Two programmable position alarms.

• Adjustable output pressure limitation.

• IP66 / NEMA 4X protection.

• Suitable for critical industrial safety applications.

8. Safety and SIL Functionality

The main advantage of the TROVIS SAFE 3730-6 TS is its suitability for safety-instrumented applications.

Emergency venting options:

1. Setpoint-triggered emergency venting.

2. Optional solenoid valve for emergency venting.

3. Optional electronically activated forced venting function.

These functions help support emergency valve operation in safety-related industrial processes. The actual safety action depends on actuator design, valve configuration and selected positioner version.

9. EXPERTplus Diagnostic Functions

The TROVIS SAFE 3730-6 TS incorporates EXPERTplus diagnostics for monitoring valve condition and supporting preventive maintenance.

Key diagnostic capabilities include:

• Partial Stroke Testing (PST).

• Valve travel monitoring.

• Setpoint deviation monitoring.

• Operating cycle counting.

• Valve performance monitoring.

• Pneumatic pressure monitoring.

• End-position trend monitoring.

• Drive signal analysis.

• Data logging and diagnostic status monitoring.

• Fault alarm reporting.

Partial stroke testing is particularly useful for safety valves because it helps verify valve movement without requiring a complete process shutdown.

10. Industrial Applications in Bangladesh

• Power generation plants.

• Oil and gas processing facilities.

• Petroleum and gas distribution systems.

• Chemical and petrochemical industries.

• Pharmaceutical manufacturing plants.

• Boiler and steam safety systems.

• Textile and garment manufacturing.

• ETP, STP and WTP safety automation.

• Industrial burner management systems.

• Critical process shutdown systems.

• Refinery and industrial utility systems.

• Safety Instrumented Systems (SIS).

11. Mounting Compatibility

The SAMSON TROVIS SAFE 3730-6 TS supports various pneumatic actuator mounting arrangements:

• SAMSON Type 3277 pneumatic actuator – direct mounting.

• Linear actuators according to IEC 60534-6-1 (NAMUR).

• Linear actuators according to VDI/VDE 3847.

• Rotary actuators according to VDI/VDE 3845.

• Compatible single-acting pneumatic actuators.

• Compatible double-acting pneumatic actuators.

Mounting brackets, connecting blocks, solenoid valves and other accessories may need to be ordered separately.