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Dwyer Liquid Flow Switch: Paddle, 1 1/2 in For Pipe Size, Brass, 1 1/2 in NPT - Insertion-Style Hazardous-Location Switches for Liquids
DwyerInsertion-Style Hazardous-Location Switches for Liquids

Dwyer Liquid Flow Switch: Paddle, 1 1/2 in For Pipe Size, Brass, 1 1/2 in NPT

The Dwyer V4-2-D-U is an insertion-style hazardous-location liquid flow switch with a paddle design, for pipe sizes of 1-1/2 inches. It features a brass body with 1-1/2 inch NPT connections and is rated for Class I…

SKU 3G-OTH-88509

Brand
Dwyer
Item
Liquid Flow Switch: Paddle, 1 1/2 in For Pipe Size, Brass, 1 1/2 in NPT
Category
Insertion-Style Hazardous-Location Switches for Liquids
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Technical Specifications

Dwyer
Manufacturer Part Number
V4-2-D-U
Type
Brass, NPT, -4°F to 275°F
NPT
1 1/2 in
For Pipe Size
1-1/2 in
Contact Rating (AC)
10 A @ 125/250V
Contact Rating (DC)
UL, FM, ATEX and IECEx models 10 A @ 125/250 VAC. CSA models: 5 A @ 125/250 VAC
Hazardous Location Rating
Class I, Div 1 and 2, Group A, B, C, D
View Full Spec Sheet

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

Product Description

The Dwyer V4-2-D-U is an insertion-style hazardous-location liquid flow switch with a paddle design, for pipe sizes of 1-1/2 inches. It features a brass body with 1-1/2 inch NPT connections and is rated for Class I, Divisions 1 and 2, Groups A, B, C, D hazardous locations. The switch offers a contact rating of 10 A at 125/250 VAC (UL, FM, ATEX, IECEx models) or 5 A at 125/250 VAC (CSA models), with an operating temperature range of -4°F to 275°F.

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 insertion-style 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, Brass, 2 in NPT, NPT (MPN V6EPB-B-D-6-0). Key specifications — Brand: DWYER; Contact Rating (DC): 17 A (Inductive) @ 30V (CSA, ATEX and IECEx Models); For Pipe Size: 1/4 in; Hazardous Location Rating: Class I, Div 1 and 2, Group A, B, C, D; Contact Rating (AC): 5 A @ 125/250V.
DWYER Flow Switch: Paddle, 1/2 in/1/4 in/2 in/3/8 in For Pipe Size, Brass, 1/2 in NPT, NPT, SPDT (MPN V6EPB-B-S-1-B). Key specifications — Brand: DWYER; Contact Rating (DC): 3 A (Inductive) @ 30V (CSA, ATEX and IECEx Models); For Pipe Size: 1/2 in; Hazardous Location Rating: Class II, Div 1 and 2, Group E, F, G; Contact Rating (AC): 5 A @ 125/250V (MT Option).
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DWYER Flow Switch: Paddle, 1/2 in/1/4 in/2 in/3/8 in For Pipe Size, Brass, 1/2 in NPT, NPT, SPDT (MPN V6EPB-B-S-1-B). Key specifications — Brand: DWYER; Contact Rating (DC): 3 A (Inductive) @ 30V (CSA, ATEX and IECEx Models); For Pipe Size: 1/2 in; Hazardous Location Rating: Class II, Div 1 and 2, Group E, F, G; Contact Rating (AC): 5 A @ 125/250V (MT Option).
DWYER Liquid Flow Switch: Paddle, 1/2 in/1/4 in/2 in/3/8 in For Pipe Size, Stainless Steel, 2 in NPT (MPN V6EPS-S-S-6-0). Key specifications — Brand: DWYER; Contact Rating (DC): 46 A (Inductive) @ 30V (CSA, ATEX and IECEx Models); For Pipe Size: 1/4 in; Hazardous Location Rating: Class I, Div 1 and 2, Group A, B, C, D; Contact Rating (AC): 5 A @ 125/250V.
Dwyer
DWYER Liquid Flow Switch: Paddle, 1/2 in/1/4 in/2 in/3/8 in For Pipe Size, Stainless Steel, 2 in NPT (MPN V6EPS-S-S-6-0). Key specifications — Brand: DWYER; Contact Rating (DC): 46 A (Inductive) @ 30V (CSA, ATEX and IECEx Models); For Pipe Size: 1/4 in; Hazardous Location Rating: Class I, Div 1 and 2, Group A, B, C, D; Contact Rating (AC): 5 A @ 125/250V.