SAMSON 3725-1120000000 and 3725-00000000000 Electropneumatic Valve Positioners
The SAMSON 3725-1120000000 and 3725-00000000000 Electro pneumatic Valve Positioners are intelligent industrial control instruments designed for accurate positioning and regulation of single-acting pneumatic valve actuators. Manufactured by SAMSON, the Type 3725 Series uses...
- Single Acting Actuator Configuration
- 1.4 to 7 bar Pneumatic Supply Pressure
- 4 to 11.9 mA and 12.1 to 20 mA Split-Range Operation
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- Technical supportTalk to an engineer
- 1 YearWarranty
Product Overview
The SAMSON 3725-1120000000 and 3725-00000000000 Electro pneumatic Valve Positioners are intelligent industrial control instruments designed for accurate positioning and regulation of single-acting pneumatic valve actuators. Manufactured by SAMSON, the Type 3725 Series uses microprocessor-based control, an integrated current-to-pressure converter, and non-contact magnetic position sensing to regulate valve movement. Its 4-20 mA electrical input supports precise positioning of linear and rotary control valves in industrial process automation systems.
The SAMSON Type 3725 features automatic initialization, an integrated LCD display, three capacitive operating keys, and adjustable valve characteristics for reliable pneumatic control. Its compact polyphthalamide housing provides IP66 protection, while its low air consumption supports efficient operation in demanding industrial environments. The 3725-000 series represents the standard non-explosion-protected version, while the 3725-112 family identifies a CCC intrinsically safe configuration. These positioners are suitable for oil and gas processing, chemical manufacturing, power generation, water treatment, and industrial valve automation.
Technical Specifications
|
Specification |
Value |
|---|---|
|
Product Name |
Electropneumatic Valve Positioner |
|
Manufacturer / Brand |
SAMSON |
|
Model Reference 1 |
3725-1120000000 |
|
Model Reference 2 |
3725-00000000000 |
|
Product Series |
Type 3725 |
|
Product Type |
Intelligent Electropneumatic Valve Positioner |
|
Positioner Technology |
Microprocessor-Based Electronic Control |
|
Primary Function |
Pneumatic Control Valve Positioning |
|
Actuator Configuration |
Single Acting |
|
Electrical Input Signal |
4-20 mA DC |
|
Signal Configuration |
Two-Wire |
|
Minimum Operating Current |
3.8 mA |
|
Input Load Voltage |
Maximum 6.3 V at 20 mA |
|
Split-Range Operation |
4 to 11.9 mA and 12.1 to 20 mA |
|
Pneumatic Control Technology |
Integrated I/P Converter and Air Capacity Booster |
|
Pneumatic Supply Pressure |
1.4 to 7 bar |
|
Pneumatic Output Pressure |
0 bar up to Supply Pressure |
|
Operating Medium |
Clean, Dry Instrument Air |
|
Position Sensing Technology |
Non-Contact Magnetoresistive Sensor |
|
Direct Attachment Travel |
5 to 30 mm, Type 3277 |
|
NAMUR Attachment Travel |
5 to 50 mm |
|
Rotary Opening Angle |
24 to 100 Degrees |
|
Positioning Characteristic |
Configurable |
|
Operating Direction |
Reversible |
|
Positioning Hysteresis |
Maximum 0.3% |
|
Positioning Sensitivity |
Maximum 0.1% |
|
Air Consumption |
Maximum 100 Normal Litres per Hour under Specified Conditions |
|
Automatic Calibration |
Supported |
|
Local Display |
Integrated LCD |
|
Operator Interface |
Three Capacitive Keys |
|
Configuration Storage |
Non-Volatile EEPROM |
|
Housing Material |
Polyphthalamide |
|
Enclosure Protection |
IP66 |
|
Electrical Connection |
M20 x 1.5 Cable Gland |
|
Operating Temperature |
-20 to +80 Degrees Celsius, Standard Configuration |
|
Explosion Protection, 3725-000 |
Without Explosion Protection |
|
Explosion Protection, 3725-112 |
CCC Intrinsically Safe Series Configuration |
|
Mounting Compatibility |
SAMSON Type 3277 and Compatible NAMUR Actuators |
|
Rotary Mounting Standard |
VDI/VDE 3845 |
|
Approximate Weight |
0.5 kg |
|
Operating Application |
Industrial Pneumatic Valve Positioning |
|
Condition |
New |
|
Warranty |
1 Year |
Key Features
Intelligent electropneumatic valve positioning technology
Accurate 4-20 mA electrical control input
Single-acting pneumatic actuator operation
Microprocessor-based valve positioning control
Integrated current-to-pressure converter
Non-contact magnetic valve position sensing
Automatic initialization and calibration
Integrated LCD display for operating information
Three capacitive keys for convenient configuration
Reversible operating direction for flexible control
Adjustable characteristics for linear and rotary valves
Pneumatic supply pressure range of 1.4 to 7 bar
Low instrument air consumption
Durable polyphthalamide industrial housing
IP66 protection against dust and water ingress
Compatible with SAMSON Type 3277 pneumatic actuators
Supports standard NAMUR actuator mounting
Suitable for industrial valve maintenance and replacement
Typical Applications
Industrial pneumatic control valve positioning
Single-acting pneumatic actuator systems
SAMSON Type 3277 actuator installations
Oil and gas production and processing facilities
Chemical and petrochemical manufacturing plants
Petroleum refining installations
Power generation and utility systems
Water and wastewater treatment facilities
Industrial flow and pressure regulation
Linear and rotary control valve automation
Pneumatic diaphragm actuator positioning
Industrial manufacturing and production equipment
Process control and instrumentation systems
Industrial valve maintenance and replacement
Shipping & Support
Fast dispatch, Australia and Worldwide Shipping
Technical assistance available
1-year warranty
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