Product Overview
The Schubert & Salzer 8049-4 / 4046505 is a high-precision electro-pneumatic positioner engineered for demanding process control environments. Designed to mount directly onto pneumatic control valves, this instrument converts a standard electrical control signal into a proportional pneumatic output pressure, accurately positioning the valve actuator stem in response to the command signal. The 8049-4 series is a robust, force-balance type positioner widely recognized for its reliability in the chemical, petrochemical, and power generation industries. With its precise spool valve mechanism and durable construction, it ensures accurate valve positioning, fast response times, and minimal air consumption, making it an essential component for critical process regulation loops.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electro-Pneumatic Positioner (Process & Pneumatic Valve Accessory) |
| Model Designation | 8049-4 / 4046505 |
| Manufacturer | Schubert & Salzer |
| Input Signal | Standard electrical control signal (e.g., 4–20 mA or 0–10 V DC) |
| Output / Supply Pressure | Pneumatic output proportional to input; supply air typically 1.4–6 bar |
| Operating Pressure | Standard Industrial Grade (up to rated bar) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (NAMUR / IEC 60534-6 compatible) |
| Action Type | Force-balance, single or double-acting configuration |
| Housing Material | Die-cast aluminum, corrosion-resistant coating |
| Protection Class | IP65 (typical for industrial process environments) |
Engineering Features & Advantages
- Precision Performance: The force-balance feedback mechanism delivers highly accurate valve stem positioning with minimal hysteresis, ensuring tight process control and repeatable metering of flow, pressure, or temperature loops.
- Fast Dynamic Response: The integrated pneumatic spool valve provides rapid air delivery and exhaust, enabling quick corrective action to setpoint changes and minimizing process deviation.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a rugged die-cast aluminum housing and corrosion-resistant finish suitable for harsh plant environments.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Schubert OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
This electro-pneumatic positioner (process & pneumatic valve accessory) is widely used in industrial hydraulic power units, machine tools, presses, and general automation systems where reliable, precise performance is required.
PRODUCT IMAGES
Schubert & Salzer 8049-4 / 4046505 Electro-Pneumatic Positioner
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- 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 SCHUBERT & SALZER 8049-4 / 4046505 Solenoid Directional Valve. This Germany-made 24V DC hydraulic component features a 4/3-way design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.