Dwyer Instruments V6EPB-B-S-LF Flow Switch

The Dwyer Instruments V6EPB-B-S-LF Flow Switch is a heavy-duty, explosion-proof flow switch designed for low flow monitoring in critical HVAC and industrial process loops. Engineered with a brass upper and lower body, this SPDT switch utilizes a magnetically actuated vane to trigger alarms or equipment shutdowns without the risk of mechanical linkage failure. As a direct replacement for FS1-W, it installs seamlessly into existing 1/2" NPT lines via the integrated brass tee. This Flotect mini-size flow switch is rated for pressures up to 1450 psi and temperatures reaching 220°F, making it a reliable choice for liquid, gas, or air flow applications where space is at a premium and safety is non-negotiable.

Key Benefits:

• Magnetic Actuation: Eliminates physical linkages, bellows, or seals, significantly extending service life in demanding environments.
• Explosion-Proof Housing: UL and CSA listed for Class I, Groups A, B, C, and D, ensuring safe operation in hazardous locations.
• Field Maintenance: The electrical assembly can be serviced or replaced without removing the body from the pipeline, preventing system downtime.
• Low Flow Precision: Specifically calibrated for sensitive low flow NPT applications that require high repeatability.

Common Questions:

Is the V6EPB-B-S-LF compatible with horizontal and vertical piping?
Yes, the switch can be mounted in any orientation; however, the actuation set points are optimized for horizontal pipe runs. Standard field adjustment may be required for vertical installations.

Can I use this switch for fuel oil or diesel systems?
The V6EPB-B-S-LF is compatible with most non-corrosive liquids and gases. For specific chemical compatibility with the brass body and Buna-N O-ring, verify the medium’s properties against the wetted materials list.

What are the electrical ratings for this SPDT switch?
The unit features a standard SPDT snap switch rated for 5A at 125/250 VAC, providing versatile normally-open or normally-closed wiring configurations.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.