Model P72

SKU: P72

Capacitance Probe, Flexible Cable, Parallel Ground

The Delta Controls Model P72 Capacitance Probe Cable is jacketed with PTFE insulating material. The bottom cable fitting is electrically isolated from the cable. The probe should be located away from the vessel centerline by less than one quarter of the vessel’s diameter.

The P72 is primarily intended for liquid and interface measurement service. Some applications requiring these attributes include damp wood chips and pulpstock chests. The cable is provided with a bolt thread for direct attachment to the tank’s bottom. It may also be equipped with a lower weight, using gravity to keep it straight. The cable must be vertical and taut after installation. A simple bottom weight is the preferred method in calm, still storage tanks. A pipe stilling well should be used in conjunction with the weight when the liquid is agitated or where strong flowing currents are present. Fastening the lower cable termination to the bottom of an agitated tank is required when a stilling well cannot be installed or in applications where the stilling well may plug with deposits.


  • Cable may be coiled for easy handling
  • Easily installed in tall tanks
  • May be installed in indoor tanks with low headroom
  • PTFE insulation allows operation in conductive or nonconductive liquids at high temperatures
  • Corrosion resistant PTFE seals and jacket/li>
  • Suitable for high pressures


  • Working Pressure: +1500 psig (103.4 bar) at +100 °F (38 °C)
  • Working Temperature: -460 °F to +400 °F (-273 °C to +204 °C)
  • Temperature Extension Required +175 °F (+79 °C)
  • Insertion Length: ≤ 250 ft (75 m)
  • Process Connection: 1.0 in MPT min
  • Threaded: 1.0 in to 2.0 in
  • Tri Clamp: 2.0 in to 3.0 in
  • Flanged: 1.5 in to 4.0 in
  • Rating: ≤ 600 lb
  • Available Wetted Materials 316 Stainless Steel, PTFE, carbon steel (other materials available)

Required Ordering Information

  • Detailed model number
  • Tag or nameplate detail (if required)
  • Documentation & testing packages (if required, refer to Additional Resources in the product catalog)
  • Process fluid or material name
  • Process fluid or material dieletric constant
  • Maximum process temperature
  • Maximum process pressure

Additional Information


Capacitance Probe, Flexible Cable, Parallel Ground

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