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Choosing PVC, PUR, FEP and TPE cable types

When specifying the electrical connection for submersible types of the LMP, LMK and DCL series of liquid level sensors, you will need to choose from a selection of cable types.

The choice of cable will depend on your budget, application environment, and liquid compatibility.

Below is a summary of the properties of each cable to help make a better decision on the most appropriate cable for your application.

Contents

Toggle
  • PVC
  • PUR
  • FEP
  • TPE
  • TPE-U
  • Help
    • FEP vs TPE for Diesel

PVC

  • Operating temperature from 0 … 70 °C
  • Max. cable length 140 m
  • Material is very flexible
  • Good chemical resistance

PUR

  • Operating temperature from -20 … 100 °C
  • Max. cable length 700 m
  • Abrasion-proof
  • Resistant against chemicals
  • May be used in food industry

FEP

  • Operating temperature from -25 … 125 °C
  • Max. cable length 700 m
  • PUR cable + PTFE cover
  • Resistant against all kinds of chemicals

TPE

  • Large operating temperature from -25 … 125 °C
  • Max. cable length 800 m
  • Resistant against sea water and heavy oil

TPE-U

  • Large operating temperature from -10 … 75 °C
  • Drinking water approved

Featured submersible cable liquid level sensor products

  • CIP protected dairy sensor for measuring level of milk in 6m high tank - Hygienic pressure sensor designed for CIP cleaning in dairy applications. Withstands harsh chemicals and high temperatures. Accurate and reliable level measurement in milk silos.
  • LMK387 Cleanable Sewage and Sludge Pressure/Level Sensor - Rugged and easily cleanable pressure/level sensor for use with waste water sewage or sludge.

Help

FEP vs TPE for Diesel

Is a FEP or TPE outer cable material preferred for immersing in diesel? TPE seems to be a common choice for marine approved applications, but what’s the reason?

TPE is more robust, resistant to seawater and rated higher for hot environments.

FEP is better with diesel in non-marine applications, but TPE is also acceptable.

Featured submersible cable liquid level sensor products

  • LMK387 Cleanable Sewage and Sludge Pressure/Level Sensor - Rugged and easily cleanable pressure/level sensor for use with waste water sewage or sludge.
  • LMK458 Marine Approved Hydrostatic Level Transmitter - Marine approved level transmitter with 4-20mA output for measuring level of contents inside ship ballast, fuel, liquid cargo or wastewater tanks

Related Help Guides

  • How to reduce submersible pressure sensor failures caused by moisture ingress
  • Using absolute pressure sensors to measure hydrostatic level
  • Using a screw-in or waterproof pressure transmitter to measure liquid level
  • Improve the electrical termination of vented submersible pressure sensors
  • Considerations for monitoring Landfill Water Level
  • Why are Submersible applications so demanding of Pressure Transducers?
  • Determining the Signal Cable Length of a Suspended Liquid Level Transducer
  • Are all IP68 Water Resistant Protection Ratings the same
  • Problem with zero drift when installing submersible pressure sensor

Related Technical Terms

  • IP Ratings

Related Online Tools

  • IP Rating Checker

Related Product and Application Guides

  • Submersible

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