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Dwyer Liquid Flow Switch: Paddle, 1/2 in/1/4 in/2 in/3/8 in For Pipe Size, Stainless Steel - Inline Hazardous-Location Switches for Liquids
DwyerInline Hazardous-Location Switches for Liquids

Dwyer Liquid Flow Switch: Paddle, 1/2 in/1/4 in/2 in/3/8 in For Pipe Size, Stainless Steel

The DWYER Liquid Flow Switch: Paddle (SKU 3G-OTH-89921) is an inline hazardous-location switch for liquids, designed for pipe sizes of 1/4 in. It carries a hazardous location rating of Class I, Div 1 and 2, Group A…

SKU 3G-OTH-89921

Also listed as: V6EPSSD4S · V6EPS S D 4 S

Brand
Dwyer
Item
Liquid Flow Switch: Paddle, 1/2 in/1/4 in/2 in/3/8 in For Pipe Size, Stainless Steel
Category
Inline Hazardous-Location Switches for Liquids
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dwyer
Manufacturer Part Number
V6EPS-S-D-4-S
Type
1/2 in/1/4 in/2 in/3/8 in For Pipe Size, Stainless Steel, NPT
For Pipe Size
1/4 in
Contact Rating (AC)
5 A @ 125/250V
Contact Rating (DC)
35 A (Inductive) @ 30V (CSA, ATEX and IECEx Models)
Hazardous Location Rating
Class I, Div 1 and 2, Group A, B, C, D

Technical Documents

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

Product Description

The DWYER Liquid Flow Switch: Paddle (SKU 3G-OTH-89921) is an inline hazardous-location switch for liquids, designed for pipe sizes of 1/4 in. It carries a hazardous location rating of Class I, Div 1 and 2, Group A, B, C, D, with AC contact ratings of 5 A @ 125/250V and DC contact ratings of 35 A (Inductive) @ 30V (CSA, ATEX and IECEx Models). This switch is suitable for use in environments requiring explosion-proof protection.

Frequently Asked Questions

What is the DWYER V6EPS-S-D-4-S liquid flow switch used for?

The DWYER V6EPS-S-D-4-S paddle flow switch is used to detect liquid flow or no-flow conditions in hazardous locations. It is suitable for pipe sizes of 1/4 in and carries a Class I, Div 1 and 2, Group A, B, C, D rating, making it ideal for explosion-proof environments in oil, gas, and chemical plants.

What are the specifications of the DWYER V6EPS-S-D-4-S flow switch?

The DWYER V6EPS-S-D-4-S flow switch has a for pipe size of 1/4 in, AC contact rating of 5 A @ 125/250V, and DC contact rating of 35 A (Inductive) @ 30V (CSA, ATEX and IECEx Models). It is rated for hazardous locations: Class I, Div 1 and 2, Group A, B, C, D, and features a stainless steel NPT connection.

Where to buy the DWYER V6EPS-S-D-4-S flow switch worldwide?

You can source the DWYER V6EPS-S-D-4-S flow switch worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this Dwyer paddle switch.

How to install the DWYER V6EPS-S-D-4-S paddle flow switch?

Install the DWYER V6EPS-S-D-4-S flow switch by mounting it in a 1/4 in NPT pipe tee with the paddle oriented perpendicular to flow. Ensure the hazardous location rating matches your area classification. Follow Dwyer's manual for wiring and torque specifications. Always de-energize the circuit before installation.

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 inline hazardous-location switches for liquids. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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DWYER Liquid Flow Switch: Paddle, 1/2 in/1/4 in/2 in/3/8 in For Pipe Size, Stainless Steel, NPT (MPN V6EPS-S-D-5-S)
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