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 1/4 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-300-1-1/4) is a flow sight designed for hydraulic oils. It features a bronze body, 1 1/4 in FNPT connections, tempered glass sight and wetted…

SKU 3G-OTH-92455

Also listed as: SFI300114 · SFI 300 1 1 4 · SFI-300-1-1-4

Brand
Dwyer
Item
Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 1/4 in FNPT
Category
Flow Sights with Indicator
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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-300-1-1/4
Type
Bronze, FNPT, Tempered Glass
FNPT
1 1/4 in
Seal Material
Buna-N
Flow Direction
Horizontal Left
For Media Type
Hydraulic Oils
Sight Material
Tempered Glass
Connection Type
FNPT
Wetted Material
Tempered Glass

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The DWYER Window Sight Flow Indicator with Impeller: Rotor (MPN SFI-300-1-1/4) is a flow sight designed for hydraulic oils. It features a bronze body, 1 1/4 in FNPT connections, tempered glass sight and wetted material, a Buna-N seal, and is intended for horizontal left 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-300-1-1/4 sight flow indicator used for?

The DWYER SFI-300-1-1/4 is used to visually verify flow of hydraulic oils in piping systems. Its rotating impeller provides clear indication of flow presence, making it suitable for industrial lubrication, hydraulic power units, and fluid handling applications where reliable flow monitoring is required.

What are the specifications of the DWYER SFI-300-1-1/4?

The DWYER SFI-300-1-1/4 has a bronze body, 1 1/4 in FNPT connections, tempered glass sight and wetted material, and a Buna-N seal. It is designed for horizontal left flow direction and is compatible with hydraulic oils. The manufacturer part number is SFI-300-1-1/4.

Where to buy the DWYER SFI-300-1-1/4 worldwide?

3G Electric supplies the DWYER SFI-300-1-1/4 sight flow indicator 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 for your region.

How to install the DWYER SFI-300-1-1/4 sight flow indicator?

Install the DWYER SFI-300-1-1/4 in a horizontal pipe section with flow moving left to 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 Dwyer's installation guidelines 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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

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)
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOB22R25ENQRAFR2)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOB22R25ENQRAFR2)
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOA27R50ENQRAFR2)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOA27R50ENQRAFR2)
LIQUIDYNAMICS INC. Air Drum Pump Kit: 60:1, 48 oz/min Max. Flow Rate, 150°F Max. Fluid Temp., Steel (MPN 13051T-S4H)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump Kit: 60:1, 48 oz/min Max. Flow Rate, 150°F Max. Fluid Temp., Steel (MPN 13051T-S4H)

More from Dwyer

View all Dwyer parts
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 in FNPT, 1 in Connection Size (MPN SFI-300-1)
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 in FNPT, 1 in Connection Size (MPN SFI-300-1)
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1 1/4 in FNPT, FNPT (MPN SFI-300SS-1-1/4)
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1 1/4 in FNPT, FNPT (MPN SFI-300SS-1-1/4)
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 in FNPT, 1 in Connection Size (MPN SFI-100-1)
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 in FNPT, 1 in Connection Size (MPN SFI-100-1)
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 3/8 in FNPT, 3/8 in Connection Size (MPN SFI-100-3/8)
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 3/8 in FNPT, 3/8 in Connection Size (MPN SFI-100-3/8)
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 3/8 in FNPT, 3/8 in Connection Size (MPN SFI-300-3/8)
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 3/8 in FNPT, 3/8 in Connection Size (MPN SFI-300-3/8)
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 2 in FNPT, 2 in Connection Size (MPN SFI-100-2)
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 2 in FNPT, 2 in Connection Size (MPN SFI-100-2)
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1/4 in FNPT, 1/4 in Connection Size (MPN SFI-300-1/4)
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1/4 in FNPT, 1/4 in Connection Size (MPN SFI-300-1/4)
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 3/8 in FNPT, FNPT (MPN SFI-300SS-3/8)
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 3/8 in FNPT, FNPT (MPN SFI-300SS-3/8)