BFS-30-N / BFS-30-O Viscosity-Compensated Oil Flow Switches
The Barksdale BFS-30 family monitors oils and compatible liquids with viscosities from 30 to 600 cSt. Viscosity compensation helps maintain switching performance in lubrication, hydraulic, cooling and pump systems.
Choose a low-cost L version, N or NE versions without indication, or O and OE versions with an optical display. The NE and OE versions provide enlarged switching ranges. Setpoints are continuously adjustable and the units may be mounted in any position.
Select & Configure Model
| Base Model # | Medium / Service | Switching Range | Process Connection | Pressure Limit | Switch Contacts | Configure Part # |
| BFS-30-L | Oil; 30–600 cSt; low cost | 0.5–1.6, 0.8–3 or 2–7 L/min | G1/2 | 300 bar brass; 350 bar SS | NO or SPDT | |
| BFS-30-N / O | Oil; 30–600 cSt | 0.5–1.5 to 35–110 L/min | G1 | 250 bar brass; 300 bar SS | NO or SPDT | |
| BFS-30-NE / OE | Oil; enlarged range | 1–20 to 15–80 L/min | G1 | 250 bar brass; 300 bar SS | NO or SPDT |





