Samson 3725 electric valve positioner uses a polyphthalamide shell, it is a linear actuator product conforming to IEC 60534-6 or SAMSON one-piece accessory. All parameters of the Samson 3725 electric valve positioner are stored in non-volatile EEPROM. Samson 3725 electric valve positioner has an automatic zero-point monitoring function and non-contact position sensing function.
Samson 3725 electric valve positioner uses a polyphthalamide shell, it is a linear actuator product conforming to IEC 60534-6 or SAMSON one-piece accessory. All parameters of the Samson 3725 electric valve positioner are stored in non-volatile EEPROM. Samson 3725 electric valve positioner has an automatic zero-point monitoring function and non-contact position sensing function.
The Type 3725 Electropneumatic Positioner is mounted on pneumatic control valves and is used to assign the valve position to the control signal. The positioner compares the electric control signal of a control system to the travel or opening angle of the control valve and issues a signal pressure for the pneumatic actuator. The positioner ensures a predetermined assignment of the valve position to the input signal. It compares the input signal received from a control system to the travel or rotational angle of the valve and issues a corresponding output signal pressure.
• Simple direct attachment to SAMSON Type 3277 Actuator (120 to 700 cm²)
• Attachment according to IEC 60534-6-1 (NAMUR)
• Attachment to rotary actuators according to VDI/VDE 3845
• Attachment to Type 3372 Actuator for Series V2001 Valves
• Easy operation with intuitive navigation menu using three capacitive keys
• LCD easy to read in any mounted position due to selectable reading direction
• Variable, automatic start-up
• Preset parameters (only values deviating from the standard need to be adjusted)
• Permanent storage of all parameters in non-volatile memory (EEPROM)
• Tight-closing function can be activated
• Continuous monitoring of zero point
• Non-contact position sensing
• Unaffected by environmental effects and steam hammering
| Product name | Samson 3725 electric valve positioner |
| Usage | Throttle service |
| Annex | Linear actuator, single acting
Linear actuator, double acting Rotary actuator, single acting Rotary actuator, double acting |
| Explosion proof | Type of protection “intrinsically safe”
No certification |
| Communication | Not needed |
| Control loop | 4 to 20 mA |
| Optional solenoid valve | Not needed |
| Valve diagnosis | Not needed |
| Minimum current | 3.8 mA |
| Load impedance | Max. 6.3 V (corresponds to 315 Ω at 20 mA) |
| Direction of action | w/x reversible |
The main application areas of valve positioners include:
1. Coal gasification project
2. Clean energy gasification unit
3. Electricity
4. Hydrocarbons
5. Water supply and water treatment
6.Pulp and paper
7.Industrial environment
8. Food and beverage
9. Life sciences and other fields
Online support and Video technical support.
