Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Dwyer Liquid Level Switch: SPST, Buna N, Epoxy - Vertically Mounted Float Switches
DwyerVertically Mounted Float Switches

Dwyer Liquid Level Switch: SPST, Buna N, Epoxy

The DWYER F7-SB is a vertically mounted float switch with a SPST switch type, featuring a Buna N float, epoxy coating, and 316SS hardware. It uses wire leads for electrical connection and requires a minimum media…

SKU 3G-OTH-30702

Brand
Dwyer
Item
Liquid Level Switch: SPST, Buna N, Epoxy
Category
Vertically Mounted Float Switches
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
F7-SB
Float Rod Angle
Vertical
Electrical Connection Type
Wire Leads
Minimum Media Specific Gravity
0.60
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 F7-SB is a vertically mounted float switch with a SPST switch type, featuring a Buna N float, epoxy coating, and 316SS hardware. It uses wire leads for electrical connection and requires a minimum media specific gravity of 0.60 for operation.

Frequently Asked Questions

What is the DWYER F7-SB liquid level switch used for?

The DWYER F7-SB is a vertically mounted float switch used for liquid level detection in tanks or vessels. It is suitable for water, oils, and chemicals compatible with Buna N, epoxy, and 316SS. The SPST switch opens or closes a circuit at a set level, making it ideal for pump control, alarms, or process automation.

What are the specifications of the DWYER F7-SB?

The DWYER F7-SB has a SPST switch type, Buna N float, epoxy coating, and 316SS hardware. It uses wire leads for electrical connection, mounts vertically, and requires a minimum media specific gravity of 0.60. The manufacturer part number is F7-SB.

Where to buy the DWYER F7-SB worldwide?

3G Electric supplies the DWYER F7-SB liquid level switch worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source genuine Dwyer components for reliable level sensing.

How to install the DWYER F7-SB float switch?

Mount the DWYER F7-SB vertically in the tank with the float rod perpendicular to the liquid surface. Ensure the media specific gravity is at least 0.60 for proper float operation. Connect the wire leads to your control circuit per the SPST wiring diagram. Test the switch by raising and lowering the float.

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 vertically mounted float switches. 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 Flotect Level Switch, Brass Body, Spdt S: Liquid Level Switch, For Wastewater/Water Media Type (MPN L6EPB-B-S-3-A). Key specifications — Float Material: 304 Stainless Steel; Nameplate Voltage: 125/250V AC; Accuracy: +/-12 mm; Body Material: Brass; Brand: DWYER; Connection Type: NPT; Mounting Direction: Horizontal; Product Type: Liquid Level Switch.
Dwyer
DWYER Flotect Level Switch, Brass Body, Spdt S: Liquid Level Switch, For Wastewater/Water Media Type (MPN L6EPB-B-S-3-A). Key specifications — Float Material: 304 Stainless Steel; Nameplate Voltage: 125/250V AC; Accuracy: +/-12 mm; Body Material: Brass; Brand: DWYER; Connection Type: NPT; Mounting Direction: Horizontal; Product Type: Liquid Level Switch.
DWYER Flow Switch: Paddle, 1/2 in/2 in For Pipe Size, Stainless Steel, 1/2 in NPT, NPT, 0°F to 200°F (MPN V10SS). Key specifications — Brand: DWYER; Contact Rating (DC): 1.5 A @ 24V (Resistive); For Pipe Size: 2 in; Contact Rating (AC): 0.5 A @ 120V.
Dwyer
DWYER Flow Switch: Paddle, 1/2 in/2 in For Pipe Size, Stainless Steel, 1/2 in NPT, NPT, 0°F to 200°F (MPN V10SS). Key specifications — Brand: DWYER; Contact Rating (DC): 1.5 A @ 24V (Resistive); For Pipe Size: 2 in; Contact Rating (AC): 0.5 A @ 120V.
DWYER Flow Switch: Paddle, 1/2 in/2 in For Pipe Size, Brass, 1/2 in NPT, 1/2 in Connection Size, NPT (MPN V10). Key specifications — Brand: DWYER; Contact Rating (DC): 0.001 A @ 200V (Resistive); For Pipe Size: 1/2 in; Contact Rating (AC): 0.5 A @ 120V.
Dwyer
DWYER Flow Switch: Paddle, 1/2 in/2 in For Pipe Size, Brass, 1/2 in NPT, 1/2 in Connection Size, NPT (MPN V10). Key specifications — Brand: DWYER; Contact Rating (DC): 0.001 A @ 200V (Resistive); For Pipe Size: 1/2 in; Contact Rating (AC): 0.5 A @ 120V.
DWYER Flotect Flow Switch Brass Body: Paddle, 3/4 in For Pipe Size, Brass, 3/4 in NPT, NPT, SPDT (MPN V6EPB-B-S-2-B). Key specifications — Brand: DWYER; Contact Rating (DC): 5 A Resistive @ 30V (CSA, ATEX and IECEx Models); For Pipe Size: 3/4 in; Hazardous Location Rating: Class II, Div 1 and 2, Group E, F, G; Contact Rating (AC): 5 A @ 125/250V (UL Models).
Dwyer
DWYER Flotect Flow Switch Brass Body: Paddle, 3/4 in For Pipe Size, Brass, 3/4 in NPT, NPT, SPDT (MPN V6EPB-B-S-2-B). Key specifications — Brand: DWYER; Contact Rating (DC): 5 A Resistive @ 30V (CSA, ATEX and IECEx Models); For Pipe Size: 3/4 in; Hazardous Location Rating: Class II, Div 1 and 2, Group E, F, G; Contact Rating (AC): 5 A @ 125/250V (UL Models).
DWYER Liquid Flow Switch: Paddle, 1 in For Pipe Size, Brass, 1 in NPT, 1 in Connection Size, NPT (MPN V7-WBS-30N). Key specifications — Brand: DWYER; Contact Rating (DC): 1/8 hp @ 125 VAC, 1/4 hp @ 250 VAC.; For Pipe Size: 1 in; Contact Rating (AC): 10 A @ 125V.
Dwyer
DWYER Liquid Flow Switch: Paddle, 1 in For Pipe Size, Brass, 1 in NPT, 1 in Connection Size, NPT (MPN V7-WBS-30N). Key specifications — Brand: DWYER; Contact Rating (DC): 1/8 hp @ 125 VAC, 1/4 hp @ 250 VAC.; For Pipe Size: 1 in; Contact Rating (AC): 10 A @ 125V.
DWYER Liquid Flow Switch: Paddle, 1 in/6 in For Pipe Size, PPS, 1 in NPT, 1 in Connection Size, NPT (MPN V8). Key specifications — Brand: DWYER; Contact Rating (DC): 5 A @ 125/250 VAC, 5 A resistive, 3 A inductive @ 30 VDC. MV option: 1 A @ 125 VAC, 1 A resistive, 0.5 A inductive @ 30 VDC.; For Pipe Size: 1 in; Contact Rating (AC): 5 A @ 125/250V.
Dwyer
DWYER Liquid Flow Switch: Paddle, 1 in/6 in For Pipe Size, PPS, 1 in NPT, 1 in Connection Size, NPT (MPN V8). Key specifications — Brand: DWYER; Contact Rating (DC): 5 A @ 125/250 VAC, 5 A resistive, 3 A inductive @ 30 VDC. MV option: 1 A @ 125 VAC, 1 A resistive, 0.5 A inductive @ 30 VDC.; For Pipe Size: 1 in; Contact Rating (AC): 5 A @ 125/250V.

More from Dwyer

View all Dwyer parts →