The SAMSON TROVIS 3730-1 represents the new generation of smart electropneumatic valve positioners. It is engineered for superior reliability and precision in controlling pneumatic actuators for both linear and rotary control valves. Combining robust, proven design with cutting-edge technology, the TROVIS 3730-1 delivers exceptional performance for demanding process automation applications across industries such as oil & gas, petrochemical, power generation, and pharmaceuticals.
Its core innovation is a wear-free, contactless AMR (Anisotropic Magneto-Resistive) position sensor sealed inside the housing. This design provides outstanding protection against harsh environmental influences like dust, moisture, and vibration, guaranteeing accurate valve lift measurement and long-term stability without mechanical wear.
Key Features & Benefits
Next-Generation Reliability: Features an internal contactless AMR sensor, making it exceptionally robust and accurate even under difficult conditions.
Superior Energy Efficiency: Consumes approximately half the compressed air of previous versions, significantly reducing operating costs and energy use.
Universal & Easy Installation: Can be attached to linear actuators per IEC 60534-6 (NAMUR), to rotary actuators per VDI/VDE 3845, or directly to SAMSON Type 3277 actuators. Mounting parts from previous generations are fully compatible.
Intuitive Operation & Setup: Features simple one-knob, menu-driven operation and a rotatable LCD display for easy reading in any mounting position. The automatic startup with preset parameters makes commissioning fast and easy.
Enhanced Safety & Diagnostics: Offers a tight-closing function, continuous zero-point monitoring, and two programmable position alarms. The device is suitable for use in Safety Instrumented Systems (SIL) per IEC 61508.
Future-Ready Platform: While the 3730-1 is an analog model, the series includes the TROVIS 3730-3 with HART® 7 communication and EXPERTplus diagnostics for integration into advanced predictive maintenance systems like SAM VALVE MANAGEMENT.
The following table details the key attributes and specifications of the SAMSON TROVIS 3730-1 Valve Positioner.
| Attribute | Specification |
|---|---|
| Product Title | SAMSON TROVIS 3730-1 Smart Electropneumatic Valve Positioner |
| Model | 3730-1 (Base analog version) |
| Manufacturer | SAMSON AG |
| Key Technology | Contactless AMR (Anisotropic Magneto-Resistive) position sensor |
| Input Signal | 4 to 20 mA DC, two-wire system with reverse polarity protection |
| Split-Range | Adjustable (e.g., 4-11.9 mA / 12.1-20 mA) |
| Travel Range | Linear: 3.6 to 200 mm; Rotary: 24° to 100° opening angle |
| Actuator Connection | Single-acting & Double-acting (requires Type 3710 Reversing Amplifier for double-acting) |
| Air Consumption | Approx. 110 ln/h (Normal liter per hour), independent of supply pressure |
| Supply Air Pressure | 1.4 to 7.0 bar (20 to 105 psi) |
| Ambient Temperature | –20 to +80 °C (standard); –45 to +80 °C with metal cable gland |
| Housing / Protection | Die-cast aluminum or stainless steel; IP66/NEMA 4X |
| Weight | 1.0 kg (aluminum); 2.2 kg (stainless steel) |
| Communications | Analog (4-20 mA). For digital communication, see model TROVIS 3730-3. |
| Safety Certification | Suitable for use in Safety Instrumented Systems (SIL) per IEC 61508 |
If you require a positioner with digital communication, ask about the TROVIS 3730-3 model featuring HART® 7 protocol and advanced valve diagnostics.
For detailed datasheets, configuration support, or pricing information for the SAMSON TROVIS 3730-1, please contact the sales team at Kateteco. We are here to help you select the perfect valve control solution for your application.
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