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Dwyer Pressure Switch: Adj, 4 in wc to 20 in wc, SPDT, 1/8 in Sample Line Connection Size - Adjustable Set-Point Air Pressure Switches
DwyerAdjustable Set-Point Air Pressure Switches

Dwyer Pressure Switch: Adj, 4 in wc to 20 in wc, SPDT, 1/8 in Sample Line Connection Size

The Dwyer 1910-20 is an adjustable set-point air pressure switch with a SPDT switching element. It features a sample line connection size of 1/8 inch NPT and an adjustable range of 4 to 20 inches of water column…

SKU 3G-OTH-69329

Also listed as: 191020 · 1910 20

Brand
Dwyer
Item
Pressure Switch: Adj, 4 in wc to 20 in wc, SPDT, 1/8 in Sample Line Connection Size
Category
Adjustable Set-Point Air Pressure Switches
Available to Order
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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
1910-20
Type
4 in wc to 20 in wc, SPDT, NPT
NPT
1/8 in
Switch Voltage
120 to 480V AC
Sample Line Connection Size
1/8 in

Technical Documents

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

Product Description

The Dwyer 1910-20 is an adjustable set-point air pressure switch with a SPDT switching element. It features a sample line connection size of 1/8 inch NPT and an adjustable range of 4 to 20 inches of water column. This switch operates at a voltage of 120 to 480V AC.

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 1910-20 pressure switch used for?

The Dwyer 1910-20 adjustable set-point air pressure switch is used to monitor or control air pressure in HVAC, ventilation, and industrial process systems. It actuates a SPDT switch when pressure reaches the set point between 4 and 20 inches of water column.

What are the specifications of the Dwyer 1910-20?

The Dwyer 1910-20 is an adjustable set-point air pressure switch with a range of 4 to 20 in wc. It has a SPDT switching element, a sample line connection size of 1/8 in NPT, and operates at 120 to 480V AC. The manufacturer part number is 1910-20.

Where to buy the Dwyer 1910-20 worldwide?

You can source the Dwyer 1910-20 pressure switch through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the Dwyer 1910-20 pressure switch?

Mount the Dwyer 1910-20 in a clean, dry location away from vibration. Connect the sample line to the 1/8 in NPT port. Wire the SPDT contacts according to your control circuit voltage (120 to 480V AC). Adjust the set point by turning the adjustment screw to the desired 4 to 20 in wc range.

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 adjustable set-point air pressure switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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