Product Overview
The Schubert & Salzer 8049-4 (Part No. 4058343) is a high-precision electro-pneumatic positioner engineered for the reliable control of pneumatic control valves and actuators in demanding process environments. Operating on a force-balance principle, this instrument converts a standard electrical input signal into a proportional pneumatic output pressure, ensuring accurate valve stem positioning and precise process variable regulation. As a critical component in automated process control loops, the 8049-4 delivers exceptional dynamic response and long-term stability, making it a trusted choice for industrial valve automation where precise throttling and dependable shut-off are essential.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electro-Pneumatic Positioner (Process & Pneumatic Valve Accessory) |
| Model Designation | 8049-4 / 4058343 |
| Manufacturer | Schubert & Salzer |
| Input Signal | Standard Electrical Control Signal (e.g., 4–20 mA / 0–10 V) |
| Output Signal | Proportional Pneumatic Pressure (psig / bar) |
| Operating Pressure | Standard Industrial Grade (Up to rated supply bar) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (NAMUR / direct actuator mount) |
| Actuation Principle | Force-Balance Electro-Pneumatic |
Engineering Features & Advantages
- Precision Performance: Force-balance feedback mechanism ensures highly accurate valve stem positioning with minimal hysteresis and excellent repeatability for critical process control.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction that resists vibration, temperature fluctuations, and contaminated plant air.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, allowing straightforward retrofit or replacement without modification to existing valve actuators or mounting hardware.
- Fast Dynamic Response: Optimized pneumatic relay design delivers quick response times to input signal changes, improving overall control loop performance and process stability.
Typical Industrial Applications
The Schubert & Salzer 8049-4 electro-pneumatic positioner is widely deployed in heavy industrial scenarios requiring precise pneumatic valve control, including chemical and petrochemical processing plants, power generation facilities (boiler and turbine control valves), water and wastewater treatment systems, and general process automation involving pneumatic control valves, butterfly valves, and globe valves. Its robust design also suits demanding environments in metallurgical plants and marine engineering systems where reliable valve positioning is critical to operational safety and efficiency.
PRODUCT IMAGES
Schubert & Salzer 8049-4 / 4058343 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 / 4058343 Solenoid Directional Control Valve. This Germany-made 24V DC hydraulic component features a 4/3-way spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.