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Pressure Transducers and Water Pipe Pressure Measurement

Pressure Transducers and Water Pipe Pressure Measurement

Using Pressure Transducers for Water Pipe Pressure Measurement at Water Distribution Utilities

Inlet and Outlet Water Pipe Pressure Measurement in Clean Water Systems

Clean water systems utilize lift stations and gravity feed reservoirs to pump water between locations. In some residential settings, lift stations and water towers alone cannot supply sufficient pressure to provide users at higher elevations with clean water. Also, water reservoirs and water towers that experience sudden, large draws of water require replenishment. Pressure-controlled variable frequency drive pumps (VFDs) are used with pressure transducers for reliable electronic pressure measurement to determine when additional pressure and flow are required by users.

Pressure transducers are used to monitor water pressure at elevation, in reservoirs, and the rate of change in each. VFD pumps interpret the pressure inputs and output the necessary increase or decrease in pump output pressure and flow rate.


Electronic Pressure Transducer Applications for Water Pipe Pressure Measurement in Clean Water Systems

Pressure transducers are frequently used for inlet and outlet water pipe pressure measurement in clean water systems at public utilities. An electronic pressure transducer is typically used in water distribution applications such as:

  • Pump intake pressure measurement
  • Pump output pressure measurement
  • End location (reservoir, elevated piping, etc.) pressure measurement

An important part of pressure transmitter selection is ensuring that any electronic pressure transducer used is compatible with potable water. Pressure transducers are responsible for monitoring the pressure at various locations throughout clean water systems and often interface with VFD pumps to indicate when increased pressure or flow rates are necessary. The WIKA A-10 and S-10 electronic pressure transducers are designed for long lifetimes in both inlet and outlet pipes of clean water systems. They can usually be delivered within days in a wide variety of configurations.


Considerations in Pressure Transmitter Selection

  1. Absolute or gauge pressure measurement
  2. Cable or flying lead pressure transmitter wiring
  3. Media compatibility for pressure transmitters
  4. Moisture resistance in pressure transmitters
  5. Pressure transmitter accuracy and errors
  6. Radio frequency (RFI) and electromagnetic interference (EMI) in pressure transmitters
  7. Standard or flush diaphragm pressure transmitters
  8. Vibration resistance in pressure transmitters


Pressure transmitter model A-10

Pressure transmitter model A-10