We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

Dwyer Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 1/2 in FNPT - Flow Sights with Indicator
DwyerFlow Sights with Indicator

Dwyer Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 1/2 in FNPT

The Dwyer SFI-100-1-1/2 is a bronze Window Sight Flow Indicator with an impeller rotor, featuring 1 1/2-inch FNPT connections and a tempered glass sight. Designed for vertical-up flow of glycol media, it uses Buna-N…

SKU 3G-OTH-92536

Also listed as: SFI100112 · SFI 100 1 1 2 · SFI-100-1-1-2

Brand
Dwyer
Item
Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 1/2 in FNPT
Category
Flow Sights with Indicator
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

Dwyer
Manufacturer Part Number
SFI-100-1-1/2
Type
Bronze, FNPT, Tempered Glass
FNPT
1 1/2 in
Seal Material
Buna-N
Flow Direction
Vertical Up
For Media Type
Glycol
Sight Material
Tempered Glass
Connection Type
FNPT
Wetted Material
Buna-N

Technical Documents

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

Product Description

The Dwyer SFI-100-1-1/2 is a bronze Window Sight Flow Indicator with an impeller rotor, featuring 1 1/2-inch FNPT connections and a tempered glass sight. Designed for vertical-up flow of glycol media, it uses Buna-N seals and wetted materials. This flow sight provides visual indication of flow presence and direction via the rotating impeller.

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 Dwyer SFI-100-1-1/2 flow indicator used for?

The Dwyer SFI-100-1-1/2 provides visual confirmation of flow presence and direction in glycol piping systems. Its bronze body and tempered glass sight are suited for industrial heating, cooling, and process lines where vertical-up flow monitoring is required.

What are the specifications of the Dwyer SFI-100-1-1/2?

This Dwyer flow indicator has 1 1/2-inch FNPT connections, a bronze body, tempered glass sight, and Buna-N seals. It is designed for vertical-up flow of glycol media. The impeller rotor spins to indicate flow direction and movement.

Where to buy the Dwyer SFI-100-1-1/2 worldwide?

3G Electric supplies the Dwyer SFI-100-1-1/2 flow indicator to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this bronze flow sight with impeller.

How to install a Dwyer SFI-100-1-1/2 flow indicator?

Install the Dwyer SFI-100-1-1/2 in a vertical pipe section with flow moving upward. Apply thread sealant to the 1 1/2-inch FNPT connections and tighten securely. Ensure the tempered glass sight is clean and unobstructed for clear rotor visibility.

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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