Flow Switches - Electrical, Lighting and Power
Marine flow switches are electromechanical or electronic devices that detect liquid or gas flow and provide an alarm, shutdown, or control signal. They are used in shipboard cooling, lubrication, ballast, fire-fighting, fuel, and service-water systems.
ProShipWorks provides end-to-end support to source and supply Flow Switches for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Flow Switches |
|---|---|
| Product Category | Electrical, Lighting and Power |
| Product Reference | 570 |
| Brands / Manufacturers | Gems Sensors, Dwyer Instruments, McDonnell & Miller, KOBOLD, SIKA |
| Unit of Measure | Piece |
Key Features
| Key Feature |
|---|
| 1. Flow-proving or no-flow detection |
| 2. Adjustable or fixed switching setpoint |
| 3. SPDT, DPDT, or electronic output options |
| 4. Brass, stainless steel, or corrosion-resistant wetted parts |
| 5. Available with marine-suitable enclosure protection |
Applications of Flow Switches
| Application |
|---|
| 1. Seawater and freshwater cooling systems |
| 2. Lubricating-oil and fuel circulation systems |
| 3. Ballast, fire-fighting, bilge, and service-water systems |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| V6 Flotect Flow Switch | Dwyer Instruments |
| FS-3 Flow Switch | Gems Sensors |
| FS4-3 Flow Switch | McDonnell & Miller |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| V6 Flotect Flow Switch | Switch output | SPDT mechanical contact | — |
| V6 Flotect Flow Switch | Process connection | Threaded connection; size and thread depend on configuration | — |
| FS-3 Flow Switch | Sensing method | Paddle or flow-operated mechanical switching, depending on variant | — |
| FS4-3 Flow Switch | Application medium | Water and other compatible liquid services | — |
| Marine flow switch | Enclosure protection | IP rating is model and enclosure dependent; verify the product datasheet | — |
Standards, Certifications & Class Approval
Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.
| Applicable Standards & Certification | Applicable requirements may include IEC 60529 for enclosure protection and IEC 60947-5-1 for low-voltage control-circuit devices. Product approvals and marine environmental compliance are model-specific and must be confirmed from the manufacturer. |
|---|---|
| Class Approval | Some manufacturer variants may be supplied with DNV, ABS, Lloyd's Register, Bureau Veritas, or ClassNK approval. Classification approval is model-, installation-, and vessel-specific; verify the certificate before procurement. |
Installation, Maintenance & Safety Information
| Installation Notes | Install in the correct flow direction and in a pipe section providing stable, full flow. Use the specified process connection, sealing method, and electrical cable gland. Confirm the switching setpoint, contact rating, and compatibility with the pumped medium. |
|---|---|
| Maintenance Tips | Inspect periodically for fouling, scale, corrosion, leakage, and damaged wiring. Clean the sensing element where permitted and function-test the alarm or shutdown circuit during planned maintenance. Replace seals and switches according to the manufacturer instructions. |
| Safety Notes | Isolate, depressurize, drain, and electrically lock out the system before installation or removal. Do not exceed pressure, temperature, flow, voltage, or contact-current ratings. Use suitable hazardous-area equipment where required and verify fail-safe alarm operation. |
Request a Quote for Flow Switches
Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.
- Vessel name and IMO number
- ETA / vessel schedule
- Berth or vessel location
- Required quantity
- Preferred delivery window
- Shipping agent contact details
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