BSP flush pressure sensors

For fluids in which standard pressure sensors are out of their depth

Balluff pressure sensors with flush diaphragm have a welded stainless steel diaphragm. As a result there is no dead space and the sensors are very easy to clean. That makes them attractive for fluids in which standard pressure sensors are out of their depth.


They are suitable for pressure sensing in viscous, semi-solid or crystallising fluids or liquids with solid content. For example, for

  • Adhesives
  • Grease
  • Sealants
  • Changing fluids

Benefits and features of BSP flush pressure sensors

  • Zero dead space
  • No seals or protrusions in the process
  • Flush welded stainless steel diaphragm
  • No adhesion to sensor
  • Easy to clean

Easy to install

These hard-wearing devices feature a high-quality, long-life stainless steel sensor cell and are convincingly simple to install, user-friendly and high-precision. A large, bright and clearly readable display ensures you are always in the picture. It not only shows the current system pressure, it is also impressively intuitive to use. Two buttons are sufficient to quickly and easily configure the sensor to VDMA standard.

Due to their very compact design, the sensors are versatile and space-saving when it comes to installation in the control cabinet. The display and control panel and the electrical connection can be rotated through 320° relative to the flange independently of one another. Connection to the process is by G½" external thread to EN 3852.

The right sensor for your application

With eleven pressure range versions, the BSP flush pressure sensors cover all important ranges from -1 to 2 bar right up to 0 to 600 bar and so cater comprehensively for monitoring process fluids in factory automation. The new Balluff pressure sensors are available with either two switching points or with one analogue switching output (0…10V or 4…20mA).

1. Semi-solid or highly viscous fluid, liquid containing dirt or solids.
2. Flush stainless steel diaphragm – no clogging or premature failure of sensor. Also aids easy cleaning of the piping system.

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