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

Dwyer Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1/2 in FNPT - Flow Sights with Indicator
DwyerFlow Sights with Indicator

Dwyer Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1/2 in FNPT

The DWYER SFI-300SS-1/2 is a window sight flow indicator with an impeller rotor, designed for use with hydraulic oils. It features a 316 stainless steel body, 1/2-inch FNPT connections, a tempered glass sight, and…

SKU 3G-OTH-92142

Also listed as: SFI300SS12 · SFI 300SS 1 2 · SFI-300SS-1-2

Brand
Dwyer
Item
Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1/2 in FNPT
Category
Flow Sights with Indicator
Available to Order
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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-300SS-1/2
Type
FNPT
FNPT
1/2 in
Seal Material
Buna-N
Flow Direction
Vertical Up
For Media Type
Hydraulic Oils
Sight Material
Tempered Glass
Connection Type
FNPT
Stainless Steel
316
Wetted Material
Buna-N

Technical Documents

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

Product Description

The DWYER SFI-300SS-1/2 is a window sight flow indicator with an impeller rotor, designed for use with hydraulic oils. It features a 316 stainless steel body, 1/2-inch FNPT connections, a tempered glass sight, and Buna-N seals and wetted materials. This unit is configured for vertical-up flow direction.

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-1/2 sight flow indicator used for?

The DWYER SFI-300SS-1/2 is used to visually confirm flow of hydraulic oils in piping systems. Its impeller rotor spins when fluid moves, providing a clear indication through the tempered glass sight. It is commonly applied in lubrication, hydraulic power units, and industrial fluid monitoring where vertical-up flow direction is required.

What are the specifications of the DWYER SFI-300SS-1/2?

The DWYER SFI-300SS-1/2 has a 316 stainless steel body, 1/2-inch FNPT connections, tempered glass sight, and Buna-N seals and wetted materials. It is designed for hydraulic oils with vertical-up flow direction. The manufacturer part number is SFI-300SS-1/2.

Where to buy the DWYER SFI-300SS-1/2 worldwide?

3G Electric supplies the DWYER SFI-300SS-1/2 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; we source and deliver this flow sight indicator to any country.

How to install the DWYER SFI-300SS-1/2 sight flow indicator?

Install the DWYER SFI-300SS-1/2 in a vertical pipe run with flow moving upward. Apply thread sealant to the 1/2-inch FNPT connections and tighten to manufacturer torque specs. Ensure the tempered glass is clean and unobstructed. For hydraulic oils, verify Buna-N seal compatibility with your fluid temperature range.

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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Cross-referenced by specification & description
LIQUIDYNAMICS INC. Air Drum Pump: Dolly, 7 gpm Max. Flow Rate, 500 cps Max. Viscosity (MPN 33275-11)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: Dolly, 7 gpm Max. Flow Rate, 500 cps Max. Viscosity (MPN 33275-11)
LIQUIDYNAMICS INC. Oil Foot Valve: Ball, Full Flow, Steel, Inline, 1 1/2 in Pipe Size, FNPT, Pumps (MPN 950047)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Oil Foot Valve: Ball, Full Flow, Steel, Inline, 1 1/2 in Pipe Size, FNPT, Pumps (MPN 950047)
LIQUIDYNAMICS INC. Oil Foot Valve: Ball, Full Flow, Steel, Inline, 1 in Pipe Size, FNPT, Female, NPT (MPN 950002)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Oil Foot Valve: Ball, Full Flow, Steel, Inline, 1 in Pipe Size, FNPT, Female, NPT (MPN 950002)
LDI INDUSTRIES Suction Flange: 1 1/2 in For Pipe Size, 4.312 in For Cut Out Size, Steel (MPN 5104)
LDI INDUSTRIES
LDI INDUSTRIES Suction Flange: 1 1/2 in For Pipe Size, 4.312 in For Cut Out Size, Steel (MPN 5104)
LDI INDUSTRIES Suction Flange: 3/4 in For Pipe Size, 4.312 in For Cut Out Size, Steel (MPN 5101)
LDI INDUSTRIES
LDI INDUSTRIES Suction Flange: 3/4 in For Pipe Size, 4.312 in For Cut Out Size, Steel (MPN 5101)
LDI INDUSTRIES Suction Flange: 1 1/4 in For Pipe Size, 4.312 in For Cut Out Size, Steel (MPN 5103)
LDI INDUSTRIES
LDI INDUSTRIES Suction Flange: 1 1/4 in For Pipe Size, 4.312 in For Cut Out Size, Steel (MPN 5103)

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