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PW31 Series

Single Diaphragm Wet-to-Wet
Differential Pressure Sensor
Higher Reliability, Faster Installation, Superior Accuracy | Sense the Difference

Wet Differential Pressure Sensor

IP65 LED display option for ease of troubleshooting 3-valve and 5-valve bypass assemblies to meet specifications High accuracy ±0.25% single-diaphragm element Easy-to-use bleed valves Securely screw-mount or clamp to any pipe DIN43650 connection for ease of wiring

±0.25% accuracy 
Stand-alone transducer, 3-valve, or 5-valve options
Rugged IP65 construction for harsh environments
Optional LED display for ease of commissioning and troubleshooting

  • Temperature compensated element for high accuracy in any environment
  • 3-valve or 5-valve bypass options available to meet specifications
  • DIN 43650 connector with screw terminals - no splicing necessary
  • Versatile 1/2” FNPT allows simplified conduit connections - connect to any EMT, flex, or liquid-tight conduit
  • Easy-access bleed valves for quick commissioning
  • Calibration certificate included with every sensing element
  • Optional LED display is highly visible and makes commissioning and troubleshooting simple (IP65)


Senva’s PW31 Series is designed to streamline installation and provide maximum accuracy. Options for standalone transducer or 3-valve and 5-valve bypass assemblies allow flexibility and save time on installation and commissioning. The single-diaphragm element is temperature compensated to provides superior ±0.25% accuracy. The PW31’s compact, light, and rugged structure combined with IP65 stainless steel construction make it ideal for most installations and capable of withstanding the most rugged environments. Now available with a highly visible, loop-powered LED display. Just plug it in for ease of commissioning and troubleshooting (4-20mA version only).


  • Meet rigid accuracy and/or bypass specifications
  • Demand measurement in HVAC systems for pump speed control and local indication
  • Process control systems
  • Measurement of gases, vapors, and liquids
  • Measure pressure changes on pumps for efficiency regulation and energy savings
  • Level measurement in tanks and vessels
  • Filter status monitoring
  • System leak detection
  • Great for data center wet pressure sensing
Product Price Quantity
PW31-X-150A Wet-Wet Differential Pressure transducer, 0-150PSID, 0-5V
$897.00 /


PW31-X-150C Wet-Wet Differential Pressure transducer, 0-150PSID, 4-20mA
$897.00 /


PW31-X-150C-D Wet-Wet Differential Pressure 0-150PSID, 4-20mA, LCD
$1,107.00 /


All prices shown are excluding tax unless otherwise specified.