ZPDW

ZPDW

What This Means — For Quick Client Selection

  • Dual Setpoints = 2 functions in one switch:
     e.g. Start at 3 bar → Stop at 6 bar AND High-pressure trip at 8 bar. 
  • Eliminates need for two separate switches → reduces wiring, panel cost & downtime. 
  • Ideal for boiler feed pump rooms, air compressors, chilled water booster sets. 
  • If you need digital setting + 4–20 mA, shift to Baumer CNI10. 
  • If the application is simple single relay, ZPDW’s sibling ZPPW fits better. 
  • Best for non-PLC plants where pump logic is relay-based. 
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Description

Baumer ZPDW is an industrial two-stage mechanical diaphragm pressure switch designed for pump protection, compressor staging, boiler automation & dual-level cut-in/cut-out logic. With two independent switching points in one body, it enables start/stop or high/low alarm functions without PLC — ideal for rugged water, air & utility applications needing reliable relay-based safety control.

ZPDW — Key Technical Data & Selection Parameters

Parameter Specification / Details
Measuring Range 0.2 … 16 bar (model variant)
Dual Switching Outputs 2× SPDT micro-switch (Independent setpoints)
Setpoint Adjustment Manual screw-type, factory calibrated
Hysteresis Fixed (non-adjustable)
Media Compatibility Water, compressed air, neutral fluids
Process Connection G¼ / G½ (Brass or SS)
Maximum Working Pressure Up to 30 bar
Switching Accuracy ±2% FS typical
Operating Temperature −10 °C … +80 °C
Electrical Rating 250 VAC, 5–8 A (contactor/relay duty)
Ingress Protection IP65 (industrial enclosure)
Housing Zinc-coated / SS options
Function Two-stage start/stop or alarm pressure switching
Approvals CE compliant

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