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Pressure Transducers
QPress – QSF-FLUSHPRO 3400 Series
The QSF-FLUSHPRO 3400 Series is a non-cavity flush-diaphragm pressure transducer for viscous and paste-like media that would block a conventional port. The flush diaphragm sits at the process face, so thick or particle-laden fluids are measured cleanly, and the stainless body reads to 500 bar at ±0.5 % FS with a 4–20 mA output on M20x1.5 or G1/2. It suits filling, dosing and process equipment handling sticky or high-solids media.
Measurement range
0–1500 bar
Accuracy
±0.5 % FS
Output / communications
4–20 mA
Process connection
BSP / Metric threaded options
Process temperature
−40 to 85 °C
Approvals / Protection
CE / UKCA / RoHS
Technical Specifications
| Pressure type | Sealed gauge |
|---|---|
| Max. working pressure | Overpressure 135 % FS (≤ 150 bar); 120 % FS (> 150 bar); Burst 200 % FS (≤ 100 bar); 150 % FS (> 100 bar) |
| Process / ambient temperature | Ambient −40 to +85 °C (option −40 to +120 °C); Storage −40 to +125 °C |
| Power supply | 9–30 VDC |
| Outputs | 4–20 mA |
| Electrical connection | DIN 43650; Cable outlet; 2088 housing |
| Housing material | Stainless steel |
| Other ratings / standards | Insulation ≥ 200 MΩ/500 VDC |
Key Features
- Flush diaphragm measures viscous, paste-like and particle-laden media without a clogging cavity.
- Reads to 500 bar at ±0.5 % FS with a 4–20 mA output on M20x1.5 or G1/2.
- Robust stainless construction for filling, extrusion and process duty on difficult media.
- Operates across −40 to 85 °C.
Typical Applications
- Viscous Liquids & Slurries
- Food & Process Fluids
- Oilfield & Process Control
- Flush Equipment Integration