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BW3 Rotor-type flow switches are designed for flow and no-flow indication in liquid systems where stable and repeatable switching is required.
The rotating element responds directly to fluid movement, allowing accurate actuation across a broad range of flow conditions.
Housings are constructed from robust, industrial-grade materials and are available with multiple process connection options to suit common installation standards.
The low-resistance rotor mechanism promotes smooth fluid passage, helping to reduce turbulence and minimize pressure drop during normal operation.
Broad operating temperature: –30°C to +150°C.
Patent-protected design: innovative magnetic actuation mechanism.
Zero standby power consumption: mechanically actuated reed switch requires no external power.
Low flow activation: starts at minimal flow rates with minimal flow restriction.
Particle self-clean function: internal design helps prevent clogging from particulates.
Customizable configurations: options for thread couplers, cable length, and electrical connectors.
Durable & stable performance: robust construction for long-term reliability.
Part Number | Flow Setting (GPM) | Housing Material | Port Size |
BW3-005-B-A | 0.5 | Bronze | 1″ NPT |
BW3-005-S-A | 0.5 | Stainless Steel | 1″ NPT |
BW3-010-B-A | 1 | Bronze | 1″ NPT |
BW3-010-S-A | 1 | Stainless Steel | 1″ NPT |
BW3-020-B-A | 2 | Bronze | 1″ NPT |
BW3-005-S-A | 2 | Stainless Steel | 1″ NPT |
BW3-015-B-A | 1.5 | Bronze | 1½″ NPT |
BW3-030-B-A | 3 | Bronze | 1½″ NPT |
BW3-020-B-A | 2 | Bronze | 2″ NPT |
BW3-020-S-A | 2 | Stainless Steel | 2″ NPT |
BW3-040-B-A | 4 | Bronze | 2″ NPT |
BW3-040-B-A | 4 | Stainless Steel | 2″ NPT |
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