( Dwyer )
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| General | | FS-930 Series – Oil Flow Switch, Compensates For Viscosity Change In Fluids. Flow Rate Settings : 0.1 GPM to 1.0 GPM Port Size : 1/4˝ NPT Primary Construction Material : Brass Setting Type : Fixed
A unique, patented piston design assures accuracy within 20% over a full range of viscosities—from 40 to 1000 SSU. Ideal for use in applications where liquids of different viscosities are blended; or for use in lubrication systems where oil fl ow monitoring is critical at start-ups. Switch compensates for viscosity changes automatically. Each unit is factory preset, using 300 SSU oil, for actuation at specifi ed fl ow rates. | |
| | Technical specifications: | | Wetted Materials Housing | Brass | | Piston | Brass | | Spring | 316 Stainless Steel | | O-Ring | Viton® | | Other Wetted Parts | Epoxy | | Pressure Rating Operating, Maximum | 1000 PSIG | | Proof | 2500 PSIG | | Burst | 5000 PSIG | | Operating Temperature | -20°F to + 300°F (-29°C to +148.9°C) | | Repeatability | 1% Maximum Deviation** | | Set Point Accuracy | ±10% | | Set Point Differential | 15% Maximum | | Switch | SPDT, 20 VA | | Inlet/Outlet Ports | 1/4˝ NPT | | Electrical Termination | No. 18 AWG, 24˝ L., Polymeric Lead Wires | | Explosion-Proof Approvals | U.L. Approved for Class I, Division 2, Groups A, B, C, D. Also available with FM approved, explosion proof junction box for Class I, Division 1, Group D hazardous locations. |
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