Product Overview
The SAMSON 3271 Pneumatic Valve Actuator is a high-performance, diaphragm-type linear actuator engineered for precise positioning of control valves in demanding industrial process control loops. Manufactured by SAMSON AG, a global leader in measurement and control technology, the Type 3271 actuator operates on a pneumatic spring-return or double-acting principle, converting a pneumatic control signal (typically 0.2 to 1.0 bar or 0.4 to 2.0 bar) into precise linear stem travel. This actuator is designed for direct integration with SAMSON globe valves, angle valves, and other final control elements, providing reliable throttling and on/off control in pressure, flow, temperature, and level regulation systems. Its robust diaphragm and spring assembly ensures consistent force output, minimal hysteresis, and long-term operational stability in continuous industrial service.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Valve Actuator (Diaphragm Type) |
| Model Designation | SAMSON Type 3271 |
| Actuation Principle | Pneumatic diaphragm with spring return (air-to-open or air-to-close configurations) |
| Control Signal Range | 0.2 – 1.0 bar or 0.4 – 2.0 bar (standard industrial pneumatic signal) |
| Operating Pressure | Up to 6 bar (supply air, depending on actuator size and spring configuration) |
| Stem Travel | Linear travel proportional to actuator size (typically 7.5 mm to 120 mm) |
| Mounting & Connection | Standard SAMSON yoke and stem connection for direct valve mounting; NAMUR or G-thread air connections |
| Diaphragm Material | NBR or EPDM reinforced fabric diaphragm (application-dependent) |
| Ambient Temperature Range | -20°C to +80°C (standard configuration) |
| Housing Material | Die-cast aluminum or steel housing with corrosion-resistant coating |
Engineering Features & Advantages
- Precision Positioning: The diaphragm and spring assembly delivers highly accurate stem positioning with minimal hysteresis, ensuring precise throttling control in critical process loops.
- Robust Spring-Return Design: Fail-safe operation is achieved through the integrated spring mechanism, which drives the valve to a defined safe position upon loss of air supply.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Precision-manufactured to original SAMSON specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
Its robust diaphragm and spring assembly ensures consistent force output, minimal hysteresis, and long-term operational stability in continuous industrial service.
PRODUCT IMAGES
SAMSON 3271 Pneumatic Valve Actuator
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine SAMSON 3271 Pneumatic Control Valve. This Germany-made 24V DC hydraulic component features a globe valve design with electric actuator, delivering leak-free, reliable fluid control for heavy-duty industrial systems.