Product Description

SAMSON 5825-20 Electric Actuator – 230V AC Fail-Safe Linear Valve Actuator

The SAMSON Type 5825-20 Electric Actuator is a high-quality industrial linear actuator manufactured by SAMSON AG, Germany. It is designed for reliable and precise operation of control valves in HVAC systems, industrial heating, building management systems (BMS) and process automation applications.

The SAMSON 5825-20 features an integrated fail-safe mechanism that automatically moves the actuator stem to its predefined safety position when the electrical power supply fails. This safety function helps protect industrial processes and equipment during unexpected power interruptions.

The actuator provides a rated travel of 12 mm and a maximum thrust of 500 N. Its synchronous motor and maintenance-free gearing ensure dependable valve operation in industrial and commercial environments.

The Type 5825-20 is designed with a force-locking valve connection and a fail-safe action in which the actuator stem extends. Depending on the selected electrical version, it can operate with 24V AC or 230V AC supply.

For industrial customers in Bangladesh, the SAMSON 5825-20 is suitable for automatic temperature regulation, boiler systems, heat exchangers, HVAC installations, hot water circulation and industrial process control.

6. Technical Specifications

Specification	Details
Brand	SAMSON
Manufacturer	SAMSON AG
Model	5825-20
Country of Origin	Germany
Product Type	Electric Linear Actuator
Control Type	Three-Step Version
Rated Travel	12 mm
Actuator Thrust	500 N
Stroking Speed	0.18 mm/s
Normal Transit Time	Approx. 70 seconds
Fail-Safe Transit Time	Approx. 6 seconds
Fail-Safe Function	Yes
Fail-Safe Action	Actuator Stem Extends
Valve Connection	Force-Locking
Motor Type	Synchronous Motor
Gear System	Maintenance-Free
Supply Voltage	24V AC, 50Hz or 230V AC, 50/60Hz (version dependent)
Power Consumption	Approx. 4 VA (24V) / 8 VA (230V)
Protection Degree	IP54*
Protection Class	Class II
Ambient Temperature	0 to +50°C
Storage Temperature	-20 to +70°C
Approx. Weight	1 kg

*IP54 protection is subject to device index and correct installation orientation.

7. Key Features and Benefits

• Original SAMSON Germany electric actuator.

• Integrated fail-safe safety mechanism.

• Automatic stem extension during power failure.

• 12 mm rated linear travel.

• 500 N actuator thrust.

• 24V AC and 230V AC supply versions.

• Approximately 6-second emergency fail-safe operation.

• Three-step control operation.

• Maintenance-free synchronous motor gearing.

• Force-locking valve connection.

• Compact and durable industrial construction.

• Suitable for HVAC and industrial process automation.

8. Industrial Applications in Bangladesh

1. Textile and garment manufacturing factories.

2. Pharmaceutical industries.

3. Food and beverage processing plants.

4. HVAC and central air-conditioning systems.

5. Industrial boiler automation.

6. Chiller and heat exchanger systems.

7. Hot water circulation systems.

8. Building Management Systems (BMS).

9. Power plant utility systems.

10. Industrial heating and cooling applications.

11. Automatic temperature control systems.

12. Industrial water treatment plants.

9. Compatible SAMSON Valve Series

• SAMSON Type 3260 Control Valve

• SAMSON Type 3222 Control Valve

• SAMSON Type 3226 Control Valve

• SAMSON Type 3213 Control Valve

• SAMSON Type 3214 Control Valve

• SAMSON V2001 Valve Series

Confirm the actuator mounting, valve travel and required operating force before purchasing.