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Dwyer SFI-300SS-3/8 Flow Sight with Indicator, 316 Stainless Steel, 3/8 in FNPT - Flow Sights with Indicator
DwyerFlow Sights with Indicator

Dwyer SFI-300SS-3/8 Flow Sight with Indicator, 316 Stainless Steel, 3/8 in FNPT

The DWYER Window Sight Flow Indicator with Impeller: Rotor (MPN SFI-300SS-3/8) is a flow sight designed for non-corrosive fluids. It features a 316 Stainless Steel body with 3/8 in FNPT connections, a tempered glass…

SKU 3G-OTH-92059

Also listed as: SFI300SS38 · SFI 300SS 3 8 · SFI-300SS-3-8

Brand
Dwyer
Item
SFI-300SS-3/8 Flow Sight with Indicator, 316 Stainless Steel, 3/8 in FNPT
Part Number
SFI-300SS-3/8
Category
Flow Sights with Indicator
Available to Order
Also known as:SFI-300SS-3/8Dwyer
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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-300SS-3/8
Seal Material
Buna-N
Flow Direction
Vertical Up
For Media Type
Non-Corrosive Fluids
Sight Material
Tempered Glass
Stainless Steel
316
Wetted Material
ABS

Technical Documents

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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-300SS-3/8) is a flow sight designed for non-corrosive fluids. It features a 316 Stainless Steel body with 3/8 in FNPT connections, a tempered glass sight, and a Buna-N seal. The indicator is configured for vertical up flow direction, with wetted materials including ABS.

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-300SS-3/8 flow sight used for?

The DWYER SFI-300SS-3/8 is a window sight flow indicator with an impeller rotor used to visually confirm flow of non-corrosive fluids in piping systems. It is commonly applied in industrial water, oil, and chemical lines where a 316 stainless steel body and tempered glass sight are required.

What are the specifications of the DWYER SFI-300SS-3/8?

The DWYER SFI-300SS-3/8 has a 316 stainless steel body, 3/8 in FNPT connections, tempered glass sight, Buna-N seal, and ABS wetted material. It is rated for non-corrosive fluids with vertical up flow direction. The manufacturer part number is SFI-300SS-3/8.

Where to buy the DWYER SFI-300SS-3/8 worldwide?

3G Electric supplies the DWYER SFI-300SS-3/8 flow sight to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this genuine Dwyer part.

How to install the DWYER SFI-300SS-3/8 flow sight?

Install the DWYER SFI-300SS-3/8 in a vertical up orientation as specified. Apply thread sealant to the 3/8 in FNPT connections and tighten to manufacturer torque specs. Ensure the tempered glass sight is clean and the impeller rotor spins freely before pressurizing the system with non-corrosive fluid.

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
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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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