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Mcdonnell & Miller Model FS1-W High Sensitivity Liquid Flow Switches
Mcdonnell & MillerFlow Switches

Mcdonnell & Miller Model FS1-W High Sensitivity Liquid Flow Switches

McDonnell & Miller Flow Switches.

SKU 3G-OTH-02715

Also listed as: FS1W · FS1 W

Brand
Mcdonnell & Miller
Item
Model FS1-W High Sensitivity Liquid Flow Switches
Category
Flow Switches
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Documents

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Mcdonnell & Miller Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

McDonnell & Miller Flow Switches.

Frequently Asked Questions

What is the McDonnell & Miller 3G-OTH-02715 flow switch used for?

The McDonnell & Miller 3G-OTH-02715 flow switch is used to detect liquid flow or no-flow conditions in industrial piping systems. Its in-line configuration eliminates the need for a pipe tee, making it suitable for HVAC, boiler, and process control applications where reliable flow detection is required.

What are the specifications of the McDonnell & Miller 3G-OTH-02715 flow switch?

The 3G-OTH-02715 features a 1/2 inch NPT connection, high flow capacity, and a single-pole double-throw snap switch. The switch compartment is completely isolated from the process fluid. It is designed for in-line mounting without a pipe tee, simplifying installation in industrial systems.

Where to buy the McDonnell & Miller 3G-OTH-02715 flow switch in Singapore?

You can source the McDonnell & Miller 3G-OTH-02715 flow switch through 3G Electric in Singapore. We provide procurement, logistics, customs clearance, and delivery services to your facility. Contact us for pricing and lead time on this item.

How to install the McDonnell & Miller 3G-OTH-02715 flow switch?

Install the 3G-OTH-02715 directly in-line with the pipe using its 1/2 inch NPT connection—no pipe tee is needed. Ensure the flow direction matches the arrow on the body. Wire the single-pole double-throw switch according to your control circuit. Always follow local electrical codes and the manufacturer's manual.

Used in

Common applications for Mcdonnell & Miller
Steam boiler low-water cutoff — McDonnell & Miller inline flow switches (e.g., FS-1) for automatic burner shutdown
Cooling water flow monitoring — McDonnell & Miller insertion-style switches (e.g., FS4-3D) in large-diameter pipes
Hazardous-area process lines — McDonnell & Miller FS7-4E with NEMA 7/9 enclosure for Class I, Div 1 locations
HVAC chilled water systems — McDonnell & Miller FS6-1 inline switch for pump flow verification
Industrial wastewater treatment — McDonnell & Miller FS4-3S stainless steel switch for corrosive fluid flow detection
Boiler feedwater control — McDonnell & Miller FS8-WJ with BSP connections for international installations

Mcdonnell & Miller Products

3G Electric supplies Mcdonnell & Miller flow switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
SMC
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Inline solid state auto switch for pneumatic cylinder position sensing. PNP output, M8 3-pin connector, 3 wires. IP67 rated. Maximum load current 80 mA. Used in industrial automation to detect piston position and provide feedback to controllers
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Inline solid state auto switch for pneumatic cylinder position sensing. PNP output, M8-3Pin connector, 3 wires, IP67 rated. Used to detect piston position in automated machinery
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The SMC D-F7PL is an inline solid state auto switch with PNP output, designed for pneumatic cylinder position sensing in automated machinery. It features IP67 protection for use in harsh environments, a maximum current draw of 80 mA, and a 3-wire connection for integration with PLCs or controllers
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Inline solid state auto switch for pneumatic cylinder position detection. PNP output with M12-4Pin connector. IP67 rated. Used in industrial automation to provide piston position feedback to controllers
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Inline solid state auto switch with PNP output, M8-3Pin connector, and IP67 rating. Designed for direct inline mounting to detect cylinder piston position in pneumatic systems. Provides a switching signal for automated machinery control
Inline solid state auto switch for pneumatic cylinder position sensing. Features PNP output, M8-3Pin connector, 3 wires, and IP67 rating. Maximum load current 80 mA or less. Suitable for industrial automation applications requiring reliable position detection
SMC
Inline solid state auto switch for pneumatic cylinder position sensing. Features PNP output, M8-3Pin connector, 3 wires, and IP67 rating. Maximum load current 80 mA or less. Suitable for industrial automation applications requiring reliable position detection

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