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

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
Dwyer Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1/4 in FNPT - Flow Sights with Indicator
DwyerFlow Sights with Indicator

Dwyer Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1/4 in FNPT

The DWYER Window Sight Flow Indicator with Impeller: Rotor (MPN SFI-300SS-1/4) is a flow sight designed for non-corrosive fluids. It features a 316 stainless steel wetted material, a tempered glass sight, and a…

SKU 3G-OTH-91946

Brand
Dwyer
Item
Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1/4 in FNPT
Category
Flow Sights with Indicator
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

Dwyer
Manufacturer Part Number
SFI-300SS-1/4
Type
FNPT
FNPT
1/4 in
Seal Material
Buna-N
Flow Direction
Vertical Up
For Media Type
Non-Corrosive Fluids
Sight Material
Tempered Glass
Connection Type
FNPT
Stainless Steel
316
Wetted Material
316 Stainless Steel
View Full Spec Sheet

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-300SS-1/4) is a flow sight designed for non-corrosive fluids. It features a 316 stainless steel wetted material, a tempered glass sight, and a Buna-N seal, with a 1/4 in FNPT connection for vertical up flow direction.

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 →

Similar products

Matched by specification & description
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1 in FNPT, FNPT, Buna-N (MPN SFI-300SS-1). Key specifications — For Media Type: Non-Corrosive Fluids; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: ABS.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1 in FNPT, FNPT, Buna-N (MPN SFI-300SS-1). Key specifications — For Media Type: Non-Corrosive Fluids; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: ABS.
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1/2 in FNPT, FNPT (MPN SFI-300SS-1/2). Key specifications — For Media Type: Hydraulic Oils; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: Buna-N.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1/2 in FNPT, FNPT (MPN SFI-300SS-1/2). Key specifications — For Media Type: Hydraulic Oils; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: Buna-N.
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 3/4 in FNPT, FNPT (MPN SFI-300SS-3/4). Key specifications — For Media Type: Non-Corrosive Gases; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: Tempered Glass.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 3/4 in FNPT, FNPT (MPN SFI-300SS-3/4). Key specifications — For Media Type: Non-Corrosive Gases; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: Tempered Glass.
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1 1/2 in FNPT, FNPT (MPN SFI-300SS-1-1/2). Key specifications — For Media Type: Hydraulic Oils; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Horizontal Right; Seal Material: Buna-N; Wetted Material: PTFE.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1 1/2 in FNPT, FNPT (MPN SFI-300SS-1-1/2). Key specifications — For Media Type: Hydraulic Oils; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Horizontal Right; Seal Material: Buna-N; Wetted Material: PTFE.
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 2 in FNPT, FNPT, Buna-N (MPN SFI-300SS-2). Key specifications — For Media Type: Gear Lube; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Horizontal Right; Seal Material: Buna-N; Wetted Material: 316 Stainless Steel.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 2 in FNPT, FNPT, Buna-N (MPN SFI-300SS-2). Key specifications — For Media Type: Gear Lube; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Horizontal Right; Seal Material: Buna-N; Wetted Material: 316 Stainless Steel.
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1 1/4 in FNPT, FNPT (MPN SFI-300SS-1-1/4). Key specifications — For Media Type: Gear Lube; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Down; Seal Material: Buna-N; Wetted Material: Bronze.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 1 1/4 in FNPT, FNPT (MPN SFI-300SS-1-1/4). Key specifications — For Media Type: Gear Lube; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Down; Seal Material: Buna-N; Wetted Material: Bronze.

More from Dwyer

View all Dwyer parts →
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 3/8 in FNPT, 3/8 in Connection Size (MPN SFI-300-3/8). Key specifications — For Media Type: Glycol; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Down; Seal Material: Buna-N; Wetted Material: Buna-N.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 3/8 in FNPT, 3/8 in Connection Size (MPN SFI-300-3/8). Key specifications — For Media Type: Glycol; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Down; Seal Material: Buna-N; Wetted Material: Buna-N.
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 2 in FNPT, 2 in Connection Size (MPN SFI-100-2). Key specifications — For Media Type: Hydraulic Oils; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Down; Seal Material: Buna-N; Wetted Material: PTFE.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 2 in FNPT, 2 in Connection Size (MPN SFI-100-2). Key specifications — For Media Type: Hydraulic Oils; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Down; Seal Material: Buna-N; Wetted Material: PTFE.
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 1/4 in FNPT, FNPT, Tempered Glass (MPN SFI-100-1-1/4). Key specifications — For Media Type: Glycol; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Horizontal Right; Seal Material: Buna-N; Wetted Material: ABS.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 1/4 in FNPT, FNPT, Tempered Glass (MPN SFI-100-1-1/4). Key specifications — For Media Type: Glycol; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Horizontal Right; Seal Material: Buna-N; Wetted Material: ABS.
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1/2 in FNPT, 1/2 in Connection Size (MPN SFI-100-1/2). Key specifications — For Media Type: Water; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Down; Seal Material: Buna-N; Wetted Material: Bronze.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1/2 in FNPT, 1/2 in Connection Size (MPN SFI-100-1/2). Key specifications — For Media Type: Water; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Down; Seal Material: Buna-N; Wetted Material: Bronze.
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 in FNPT, 1 in Connection Size (MPN SFI-300-1). Key specifications — For Media Type: Hydraulic Oils; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: Tempered Glass.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1 in FNPT, 1 in Connection Size (MPN SFI-300-1). Key specifications — For Media Type: Hydraulic Oils; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: Tempered Glass.
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1/4 in FNPT, 1/4 in Connection Size (MPN SFI-300-1/4). Key specifications — For Media Type: Water; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Down; Seal Material: Buna-N; Wetted Material: PTFE.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 1/4 in FNPT, 1/4 in Connection Size (MPN SFI-300-1/4). Key specifications — For Media Type: Water; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Down; Seal Material: Buna-N; Wetted Material: PTFE.
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 3/8 in FNPT, FNPT (MPN SFI-300SS-3/8). Key specifications — For Media Type: Non-Corrosive Fluids; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: ABS.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, 316 Stainless Steel, 3/8 in FNPT, FNPT (MPN SFI-300SS-3/8). Key specifications — For Media Type: Non-Corrosive Fluids; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: ABS.
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 3/4 in FNPT, 3/4 in Connection Size (MPN SFI-300-3/4). Key specifications — For Media Type: Water; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: PTFE.
Dwyer
DWYER Window Sight Flow Indicator with Impeller: Rotor, Bronze, 3/4 in FNPT, 3/4 in Connection Size (MPN SFI-300-3/4). Key specifications — For Media Type: Water; Brand: DWYER; Sight Material: Tempered Glass; Connection Type: FNPT; Flow Direction: Vertical Up; Seal Material: Buna-N; Wetted Material: PTFE.