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McDonnell & Miller FS6-W-1 Inline Flow Switch for Liquids, 1 in NPT, SPDT - Inline Switches for Liquids
McDonnell & MillerInline Switches for Liquids

McDonnell & Miller FS6-W-1 Inline Flow Switch for Liquids, 1 in NPT, SPDT

The MCDONNELL & MILLER FS6-W-1 is a 1 in inline flow switch for liquids, featuring a 1 in NPT connection and SPDT switching. It has a locked-rotor contact rating of 22.2 A at 240V AC.

SKU 3G-OTH-88564

Also listed as: FS6W1 · FS6 W 1

Brand
McDonnell & Miller
Item
FS6-W-1 Inline Flow Switch for Liquids, 1 in NPT, SPDT
Part Number
FS6-W-1
Category
Inline Switches for Liquids
Available to Order
Also known as:FS6-W-1McDonnell & Miller
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Technical Specifications

McDonnell & Miller
Manufacturer Part Number
FS6-W-1
Type
NPT, SPDT
NPT
1 in
For Pipe Size
1 in
Connection Size
1 in
Contact Rating (AC)
22.2 A @ 240V (Locked Rotor)

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

Product Description

The MCDONNELL & MILLER FS6-W-1 is a 1 in inline flow switch for liquids, featuring a 1 in NPT connection and SPDT switching. It has a locked-rotor contact rating of 22.2 A at 240V AC.

Frequently Asked Questions

What is the MCDONNELL & MILLER FS6-W-1 flow switch used for?

The MCDONNELL & MILLER FS6-W-1 is an inline flow switch for liquids, used to detect flow or no-flow conditions in piping systems. Common applications include HVAC, boiler protection, and industrial process control where a 1 in pipe size and SPDT switching are required.

What are the specifications of the MCDONNELL & MILLER FS6-W-1?

The FS6-W-1 is a 1 in inline flow switch for liquids with a 1 in NPT connection and SPDT contacts. Its locked-rotor contact rating is 22.2 A at 240V AC. The manufacturer part number is FS6-W-1, and it is designed for 1 in pipe size systems.

Where to buy the MCDONNELL & MILLER FS6-W-1 worldwide?

3G Electric supplies the MCDONNELL & MILLER FS6-W-1 flow switch worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the MCDONNELL & MILLER FS6-W-1 flow switch?

Install the FS6-W-1 in a horizontal pipe section with the flow arrow aligned to flow direction. Use thread sealant on the 1 in NPT connection and ensure electrical wiring matches the SPDT contact rating of 22.2 A at 240V AC. Consult the manufacturer's manual for torque and clearance requirements.

Used in

Common applications for McDonnell & Miller
Boiler systems — McDonnell & Miller FS4-3T3-1 flow switch for low-water cutoff and pump protection in 1-inch piping.
Pump control — McDonnell & Miller FS8-W flow switch for detecting flow in 1-inch lines to prevent dry running.
HVAC cooling water — McDonnell & Miller FS6-3/4 flow switch for monitoring flow in 3/4-inch chilled water circuits.
Process piping — McDonnell & Miller FS5-3/4 brass flow switch for hot water applications up to 250°F.
Industrial liquid monitoring — McDonnell & Miller FS6-W-1 flow switch for 1-inch lines with high locked-rotor rating.
Small pipe systems — McDonnell & Miller FS-1 flow switch for 1/2-inch lines in liquid circuits requiring flow detection.
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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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