NV Liquid Level Switch


  • Adjustable Switch Sensitivity
  • Compact Design
  • Brass or SS Construction
  • Low Cost
  • Maximum Pressure: 230 PSIG


NV liquid level switches may be installed wherever a reasonably priced compact device is required for monitoring liquid levels. A cylindrical stainless steel float is located at one end of a horizontal balance arm. The float moves up and down with the liquid level. The float movements are transmitted through the balance arm to a permanent magnet at the opposite end. The magnet actuates a reed contact located within a moveable housing.

The reed contact switches on or off depending on the position of the permanent magnet and the switch housing. The reed switch is set as a normally open (N/O) contact at the factory, ie., the contact closes as the liquid level rises. The switching function can be changed to normally closed (N/C) by moving the reed switch housing. Additionally, the switch sensitivity is adjustable so the effects of turbulence are minimized.



Max. Temperature: –50°F to 230°F
Max. Pressure: 230 PSIG
Connection: 3/4 NPT
Housing: Brass or 304 SS
Float: 304 SS
Plate Spring: 304 SS
Sleeve: Brass or 304 SS
Switch Housing: Polyamid (Nylon)
Cable: PVC
O-Ring: Buna-N for brass units; Viton for SS units;
Contact: Reed switch SPST, N/O or N/C
Max. Contact Ratings: 50 VA, 50 Watts, 250 VAC, 1.5 A
Standard Cable Length: 5 ft.
Protection: NEMA 4/IP65



NV Liquid Level Switch



NV Liquid Level Switch