Dwyer

Level Switches

Model: HF658

Mfr. Model No.: F7-BT

Colour, sizing or style depicted in some photos may not be exactly as described.
Please check your product description carefully before placing your order.

Sold as: Each

0 In Stock - Call For Stock Location

Ships in 11-14 days

Shipping times are based on information available at the time of order and are subject to change.

  • Operating Temperature: 220°F (105°C)
  • Float Material: Buna-N and epoxy
  • Stem Material: Polybutylene Terephthalate
  • Max. Temp: 220°F (105°C)
  • Max Pressure: 150 PSIG (10 bar)
  • Min Sp. Gr.: 0.45
  • Deadband: 1/8" (4 mm)
  • Hermetically sealed reed switch contacts are actuated by magnets bonded inside the float
  • Change from normally open (N.O.) to normally closed (N.C.) contacts in 10 seconds or less by reversing the orientation of the float on the stem
  • Switch contact ratings are suitable for direct connection to most solid state control systems and alarm/monitoring devices
  • Simple relay interfaces can be employed for higher current control applications
  • Switch mounts easily at the top, bottom or intermediate levels in tanks and vessels
  • Mounts directly in a 1/8" NPT fitting for interior mounting
  • Where exterior mounting or access is required, special adapters are available as option
  • To mount at intermediate levels, combine fittings shown with any length of pipe
  • Electrical Ratings: Model HF658: AC - 30W, 0.14 A, 220 V; DC - 0.28 A, 24 V, 0.07 A, 120 V