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MCDONNELL & MILLER Flow Switch: Paddle, 1 in For Pipe Size, 1 in NPT, 1 in Connection Size - Inline Switches for Liquids
McDonnell & MillerInline Switches for Liquids

MCDONNELL & MILLER Flow Switch: Paddle, 1 in For Pipe Size, 1 in NPT, 1 in Connection Size

The MCDONNELL & MILLER FS8-W is a paddle-type flow switch for liquids, designed for inline installation in 1-inch pipe systems. It features a 1-inch NPT connection and an AC contact rating of 22.2 A at 240V (locked…

SKU 3G-OTH-88648

Also listed as: FS8W · FS8 W

Brand
McDonnell & Miller
Item
Flow Switch: Paddle, 1 in For Pipe Size, 1 in NPT, 1 in Connection Size
Category
Inline Switches for Liquids
Available to Order
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Worldwide Shipping
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Technical specs
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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 Specifications

McDonnell & Miller
Manufacturer Part Number
FS8-W
Type
NPT
NPT
1 in
For Pipe Size
1 in
Connection Size
1 in
Contact Rating (AC)
22.2 A @ 240V (Locked Rotor)

Technical Documents

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

Product Description

The MCDONNELL & MILLER FS8-W is a paddle-type flow switch for liquids, designed for inline installation in 1-inch pipe systems. It features a 1-inch NPT connection and an AC contact rating of 22.2 A at 240V (locked rotor). This switch provides flow detection for industrial liquid applications.

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 FS8-W flow switch used for?

The McDonnell & Miller FS8-W is a paddle-type flow switch that detects liquid flow in 1-inch pipe systems. It is used in industrial applications such as pump protection, boiler low-water cutoff, and cooling water monitoring to trigger alarms or shut down equipment when flow stops.

What are the specifications of the McDonnell & Miller FS8-W?

The FS8-W has a 1-inch NPT connection for 1-inch pipe size. Its AC contact rating is 22.2 A at 240V (locked rotor). The switch is designed for inline installation in liquid systems and is manufactured by McDonnell & Miller under part number FS8-W.

Where to buy the McDonnell & Miller FS8-W worldwide?

3G Electric supplies the McDonnell & Miller FS8-W flow switch to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this paddle-type flow switch.

How to install the McDonnell & Miller FS8-W flow switch?

Install the FS8-W in a horizontal pipe section with the paddle oriented correctly for flow direction. Ensure the pipe is 1-inch NPT and the switch is wired per local codes. Follow McDonnell & Miller's generic guidelines for paddle-type switches: avoid overtightening and verify flow detection after 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 inline switches for liquids. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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