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Mcdonnell & Miller Model FS6-W High Sensitivity Liquid Flow Switches
Mcdonnell & MillerFlow Switches

Mcdonnell & Miller Model FS6-W High Sensitivity Liquid Flow Switches

McDonnell & Miller Flow Switches.

SKU 3G-OTH-02716

Brand
Mcdonnell & Miller
Item
Model FS6-W High Sensitivity Liquid Flow Switches
Part Number
FS6W
Category
Flow Switches
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Technical Specifications

Mcdonnell & Miller
Manufacturer Part Number
FS6W

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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 FS6-W flow switch used for?

The McDonnell & Miller FS6-W flow switch is used to detect liquid flow or no-flow conditions in industrial piping systems. It is commonly applied in HVAC, boiler, and process control systems to protect equipment by actuating alarms or shutting down pumps when flow stops.

What are the specifications of the McDonnell & Miller FS6-W flow switch?

The FS6-W features an in-line configuration that eliminates the need for a pipe tee, offers very high flow capacity, and actuates at extremely low flow rates. It is available in sizes including 3/4 NPT and 1 NPT. For exact pressure and temperature ratings, consult the manufacturer's datasheet.

Where to buy the McDonnell & Miller FS6-W in Singapore?

You can source the McDonnell & Miller FS6-W flow switch through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for a quotation and lead time on this item.

How to install the McDonnell & Miller FS6-W flow switch?

Install the FS6-W in a horizontal pipe section with the flow arrow aligned to the direction of flow. Ensure the pipe is fully drained before installation. Use thread sealant on NPT connections and avoid overtightening. Always follow the manufacturer's installation manual for proper electrical wiring and adjustment.

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 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
Siemens
Siemens
2-way, spring return, normally closed zone valve with 3/4 in Union NPT connections and 24V AC/DC floating signal actuator. Used in HVAC systems for regulating fluid flow in piping networks
Siemens
Siemens
Two-way, spring return, normally closed zone valve with 1 in Union NPT connections and 24V AC floating signal actuator. Used in hydronic HVAC systems to regulate fluid flow in heating or cooling zones
Siemens
Siemens
2-way flanged zone valve with spring return and normally closed operation. Features a 1 in flanged port connection and 24V AC/DC actuator voltage. Proportional signal control for modulating flow in HVAC and industrial fluid systems
Siemens
Siemens
2-way flanged zone valve with 1-1/4 in flanged port connection, 24V AC/DC actuator, spring return normally closed operation, and proportional signal control. Used in HVAC and industrial fluid systems for regulating water or glycol flow
Siemens
Siemens
2-way, spring return, normally closed zone valve with 1-1/4 in Union NPT connections. Operates on 24V AC floating signal. Suitable for regulating fluid flow in HVAC zone control applications
Siemens
Siemens
This Siemens 2-way flanged zone valve features a 1/2 in flanged port connection and a 24V AC/DC actuator. It is spring return normally closed (NC) and accepts a proportional signal for modulating flow. Used in hydronic heating and cooling systems for zone control

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