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Mcdonnell & Miller Series FS7-4W Industrial Liquid Flow Switches
Mcdonnell & MillerFlow Switches

Mcdonnell & Miller Series FS7-4W Industrial Liquid Flow Switches

McDonnell & Miller Flow Switches.

SKU 3G-OTH-02759

Also listed as: FS74W · FS7 4W

Brand
Mcdonnell & Miller
Item
Series FS7-4W Industrial Liquid Flow Switches
Category
Flow Switches
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Documents

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

Product Description

McDonnell & Miller Flow Switches.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the McDonnell & Miller 3G-OTH-02759 flow switch used for?

The McDonnell & Miller 3G-OTH-02759 is a brass flow switch with sealed tube construction used to detect liquid flow or no-flow conditions in piping systems. It is commonly applied in HVAC, boiler, and industrial process control to interlock pumps, alarms, or burners.

What are the specifications of the McDonnell & Miller 3G-OTH-02759?

The 3G-OTH-02759 features a single pole, double throw snap switch and a magnetic switching mechanism that eliminates the need for bellows. It has a brass body with sealed tube construction and is designed for sensitivity adjustment. Contact 3G Electric for full technical data.

Where to buy the McDonnell & Miller 3G-OTH-02759 in Singapore?

3G Electric supplies the McDonnell & Miller 3G-OTH-02759 flow switch to Singapore. We handle sourcing, logistics, customs clearance, and delivery to your facility. Contact our team for pricing and lead time on this item.

How to install the McDonnell & Miller 3G-OTH-02759 flow switch?

Install the 3G-OTH-02759 in a horizontal pipe section with the flow arrow aligned to flow direction. Ensure the switch is wired according to the voltage and load ratings. Adjust sensitivity per the manufacturer's guidelines. Always isolate power before installation.

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
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