SAMSON 3730-1 Digital Valve Positioner 4-20mA | Electropneumatic Positioner | LCD Display

 Product Description

SAMSON Type 3730-1 Basic Digital Valve Positioner – Electropneumatic Positioner

The SAMSON Type 3730-1 Basic Digital Valve Positioner is an advanced electropneumatic positioner manufactured by SAMSON AG, Germany. It is designed to provide accurate and reliable positioning of pneumatic control valves in industrial process automation, HVAC systems, power plants, chemical industries and manufacturing facilities.

The SAMSON 3730-1 receives a standard 4–20mA electrical control signal from a PLC, DCS or process controller and converts it into the corresponding pneumatic output pressure to control the position of a pneumatic valve actuator.

This digital positioner features an integrated LCD display, user-friendly rotary pushbutton operation and automatic initialization. It automatically adapts to the connected valve and actuator, helping simplify commissioning and improve valve positioning accuracy.

The device supports both single-acting and double-acting pneumatic actuators, depending on the configuration and required accessories. Its gearless travel sensor, automatic calibration, parameter storage in EEPROM and continuous zero-point monitoring help ensure reliable operation in demanding industrial environments.

For industrial customers in Bangladesh, the SAMSON 3730-1 is suitable for process control valves used in textile factories, pharmaceutical plants, power stations, chemical processing, water treatment plants and other industrial automation applications.

6. Technical Specifications

Technical specifications are based on the official SAMSON T 8384-1 datasheet.

7. Key Features and Benefits

• Genuine SAMSON Germany digital valve positioner.

• Standard 4–20mA DC control signal.

• Two-wire electrical connection.

• Automatic valve and actuator initialization.

• Integrated LCD display.

• Easy rotary pushbutton operation.

• Automatic calibration and adjustment.

• Gearless travel sensor for reduced mechanical wear.

• Continuous zero-point monitoring.

• Two programmable software limit contacts.

• Permanent parameter storage in EEPROM.

• Reversible direction of action.

• Low air consumption.

• IP66 / NEMA 4X enclosure protection.

• Suitable for linear and rotary pneumatic actuators.

8. Industrial Applications in Bangladesh

1. Textile and garment manufacturing factories.

2. Pharmaceutical manufacturing plants.

3. Food and beverage processing industries.

4. Chemical and petrochemical industries.

5. Power generation plants.

6. Boiler and steam control systems.

7. Water and wastewater treatment plants.

8. ETP, STP and WTP automation.

9. HVAC and industrial temperature control.

10. Paper and pulp manufacturing.

11. Oil and gas process automation.

12. Industrial pneumatic control valve systems.

9. Mounting Compatibility

The SAMSON 3730-1 can be mounted on compatible pneumatic actuators using appropriate mounting accessories.

• SAMSON Type 3277 pneumatic actuator – direct mounting.

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

• Linear actuators according to VDI/VDE 3847.

• SAMSON Type 3510 micro-flow valve.

• Rotary actuators according to VDI/VDE 3845.

• SAMSON Type 3278 rotary actuator.

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