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Dwyer Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 1/4 in FNPT - Flow Sights with Indicator
DwyerFlow Sights with Indicator

Dwyer Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 1/4 in FNPT

The DWYER Window Sight Flow Indicator with Impeller: Rotor (MPN SFI-100-1-1/4) is a flow sight with indicator designed for glycol media. It features a bronze body with 1 1/4 in FNPT connections, a tempered glass…

SKU 3G-OTH-92413

Brand
Dwyer
Item
Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 1/4 in FNPT
Category
Flow Sights with Indicator
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Technical Specifications

Dwyer
Manufacturer Part Number
SFI-100-1-1/4
Type
Bronze, FNPT, Tempered Glass
FNPT
1 1/4 in
Seal Material
Buna-N
Flow Direction
Horizontal Right
For Media Type
Glycol
Sight Material
Tempered Glass
Connection Type
FNPT
Wetted Material
ABS
View Full Spec Sheet

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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DWYER Window Sight Flow Indicator with Impeller: Rotor (MPN SFI-100-1-1/4) is a flow sight with indicator designed for glycol media. It features a bronze body with 1 1/4 in FNPT connections, a tempered glass sight, and a Buna-N seal. The unit is configured for horizontal right flow direction, with wetted materials including ABS.

Frequently Asked Questions

What is the DWYER SFI-100-1-1/4 flow sight used for?

The DWYER SFI-100-1-1/4 is a window sight flow indicator with an impeller rotor used to visually confirm glycol flow in piping systems. It is commonly applied in HVAC, process cooling, and industrial fluid monitoring where a clear view of media movement is required.

What are the specifications of the DWYER SFI-100-1-1/4?

The DWYER SFI-100-1-1/4 has a bronze body with 1 1/4 in FNPT connections, a tempered glass sight, and a Buna-N seal. It is designed for glycol media, horizontal right flow direction, and has ABS wetted materials. The manufacturer part number is SFI-100-1-1/4.

Where to buy the DWYER SFI-100-1-1/4 worldwide?

3G Electric supplies the DWYER SFI-100-1-1/4 flow sight worldwide. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the DWYER SFI-100-1-1/4 flow sight?

Install the DWYER SFI-100-1-1/4 in a horizontal pipe section with flow moving right. Apply thread sealant to the 1 1/4 in FNPT connections and tighten securely. Ensure the tempered glass sight is clean and unobstructed. Refer to the manufacturer's manual for torque specifications.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

Dwyer Products

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

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