Dwyer L6 series


• Leak proof lower body machined from bar stock

• Choice of models for direct side wall mounting or mounted in a tee to act as an external float chamber

• Weatherproof

• Explosion-proof

• Electrical assembly can be easily replaced without removing the unit from the installation so that the process does not have to be shut down

• Sensitive to level changes of less than 1/2″ (12 mm).



  • Service: Liquids compatible with wetted materials.
  • Wetted Materials: Float: Solid polypropylene or 304 SS; Lower Body: Brass or 303 SS; Magnet: Ceramic; External Float Chamber (Tee): Matches lower body choice of brass or 303 SS; Other: Lever Arm, Spring, Pin, etc.: 301 SS.
  • Temperature Limits: -4 to 220°F (-20 to 105°C) standard, MT high temperature option 400°F (205°C), (MT option not UL, CSA or ATEX). ATEX compliant AT option ambient temperature: -4 to 167°F (-20 to 75°C) process temperature: -4 to 220°F (-20 to 105°C).
  • Pressure Limits: See Catalog Page.
  • Enclosure Rating: Weatherproof and explosion-proof. Listed with UL and CSA for Class I, Groups A, B, C and D; Class II, Groups E, F, and G. (Group A on stainless steel body models only.) ATEX CE 0344 EX II 2 G EEx d IIC T6 Process Temp≤75°C. EC-Type Certificate No: KEMA 04ATEX2128.
  • Electrical Connections: UL models: 18 AWG, 18″ (460 mm) long. CSA and ATEX models: terminal block.
  • Upper Body: Brass or 303 SS.
  • Conduit Connection: 3/4″ male NPT standard, 3/4″ female NPT on junction box models.
  • Process Connection: 1″ male NPT on models without external float chamber, 1″ female NPT on models with external float chamber.
  • Mounting Orientation: Horizontal with index arrow pointing down.
  • Weight: Approximately 1 lb (.5 kg) without external float chamber, 1.75 lb (.8 kg) with external float chamber.
  • Specific Gravity: See Catalog page.
  • Agency Approvals: UL, CSA, CE and ATEX.