Trimod'Besta Level switches

Made possible by the 3-modular concept:

unlimited variety of switches

Switch modules

  • Switching elements: microswitches and proximity switches
  • SPDT and 2xSPDT (SIL 1 and SIL 2)
  • Pneumatic with ON/OFF output
  • Pneumatic with proportional output
  • Housings made of aluminium and CrNiMo
  • High and low temperature versions
  • IP65 to IP68 protection
  • Explosion proof versions
  • Self lifting terminals for perfect connections

Flange modules

  • Stainless steel 1.4408 square flange, 92 mm pitch circle diameter
  • EN/DIN, ANSI, BS and JIS compliant industrial flanges
  • Special flanges with 98, 105 and 114 mm pitch circle diameters
  • Fixed flanges made of CrNiMo
  • Composite flanges made of P265GH (Carbon steel) and CrNiMo (316 equiv.)
  • Special flanges made of Hastelloy
  • DN 65 to 150, 3" to 6"
  • PN 16 to 320, class 150 to 2500, table E to T, 5K to 63K
  • Flat seal, tongue and groove, ring joint etc.

Float modules

  • Fixed switching distance 12 mm
  • Adjustable switching distance for pump control, vertical max. 2840 mm,
    horizontal max. 557 mm
  • CrNiMo and Hastelloy stainless steel floats
  • NACE compliant floats
  • Plastic floats made of PP, PVDF and PTFE
  • Stainless steel versions up to a maximum operating pressure of 250 bar
  • Float modules for separation layer monitoring
  • Stainless steel floats with polyamide and halar coating

Application examples

Customer-specific solutions based on cost-effective standard components

Side mount combinations

01 with microswitch or proximity switch, also available in explosion proof version
02 pneumatic switching module with ON/OFF or proportional output
03 with enclosure IP68 for underwater installation
04 for explosion proof applications in a pressure-capsulated housing with microswitch or proximity switch
05 with heat exchanger for very high or low operating temperatures
06 square standard flanges made of CrNiMo, 92 mm pitch circle diameter
industrial flange acc. to EN/DIN, ANSI, BS and JIS made of PP and PTFE
08 industrial flange acc. to EN/DIN, ANSI, BS and JIS made of CrNiMo and Hastelloy
09 with fixed operating differential
10 with rod extension for longer operating differential
11 rod extension for switch point correction
12 with protective bellows for media with solids content
13 with adjustable operating differential for pump control
14 plastic versions for aggressive media
15 for separation layer monitoring of two media with different densities

Top mount combinations

16 for vertical mounting
17 for vertical mounting in plastics
18 for vertical mounting with rod extension

walder,werber werbeagentur ag