Get your Special Pricing!
1638-2 | Large diaphragm pressure switch | range 1.0-3.0" w.c. | approx deadband @ 0.06 min. set point | 0.08 max. set point. | Dwyer Instruments
The photo is for representation purposes only and may not be a photo of product being purchased.
Search products similar to 1638-2
Documents and manuals
Dwyer Instruments 1638-2 Documents
Overview
Details for 1638-2
Dwyer Instruments NCO-1638-2 Differential Pressure Switch
The Dwyer Instruments NCO-1638-2 Differential Pressure Switch is a highly accurate and reliable device designed to monitor and control pressure variations. This versatile switch features a wide adjustable setpoint range of 1.0 to 3.0 inches of water column (W.C.), making it suitable for a wide range of applications. The compact, weatherproof design allows for flexible mounting, while the durable construction ensures reliable operation in harsh environments.
Key Features:
* Adjustable setpoint range of 1.0 to 3.0" W.C.
* Dry contact output for easy interfacing with controllers and alarms
* Weatherproof construction for indoor or outdoor use
* Convenient mounting options for versatile installation
Applications:
* HVAC systems
* Industrial processes
* Building automation
* Liquid level monitoring
* Pressure monitoring
Enhance your industrial operations with the Dwyer Instruments NCO-1638-2 Differential Pressure Switch. Our HVAC supply store offers competitive prices and fast shipping, ensuring you receive the best value and timely delivery for your project. Contact us today to place your order or learn more about this essential pressure monitoring solution.
Series 1630 Large Diaphragm Pressure Switches
Visual Set Point Adjustment in 5 Standard Ranges, 0.05" to 12" w.c. Repetitive Accuracy within ±1%
On the Series 1630 Large Diaphragm Pressure Switch our highest precision conventional pressure switch provides maximum dependability. In addition, it incorporates a visible set point indicator for maximum convenience. UL and CSA listed, FM approved for general service. Electrical capability of 15 amps handles most small electrical loads. For use only with air or compatible gases.
CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.
Product Applications
- Damper positioning
- Duct air control
- Air conditioning
- Industrial service
- Visible set point indicator simplifies operation and trouble shooting
- Large diaphragm provides low range accuracy providing precise control
- Current loads of up to 15 amps supports most small electrical loads supporting a broader range of HVAC and Process applications without the need for additional relays and components
Specifications
- Series
- 1630 Large Diaphragm Pressure Switches
- Category/Type
- Pressure
- Type
- Differential Pressure
- Series
- 1630 Large Diaphragm Pressure Switches
- Service
- Air and non-combustible; compatible gases.
- Wetted Materials
- Consult factory.
- Temperature Limits
- -30 to 110°F (-34.4 to 43.3°C).
- Pressure Limits
- 10 psig (68.95 kPa) continuous; 25 psig (172.4 kPa) surge.
- Switch Type
- SPDT.
- Repeatability
- ±1%.
- Electrical Rating
- 15 A @ 120-480 VAC; 60 Hz. Resistive; 1/8 HP @ 125 VAC; 1/4 HP @ 250 VAC; 60 Hz.
- Electrical Connections
- 3 screw type; common; normally open and normally closed.
- Process Connections
- 1/8" female NPT.
- Mounting Orientation
- Diaphragm in vertical position. Consult factory for other position orientations.
- Set Point Adjustment
- Screw type with enclosed scale.
- Weight
- 3 lb 3 oz (1.50 kg).
- Agency Approvals
- CSA; FM; UL.
Reviews
Recently Viewed
New Arrivals

R46930-001 | Ind Mtr Assy 1/20hp 208-230v | Armstrong Furnace
Brand: Armstrong Furnace
SKU: R46930-001
8105-064-0148BX | BLOWER MOTOR 1/3HP PROGRAMMED | Bard HVAC
Brand: Bard HVAC
SKU: 8105-064-0148BX
ZS2PCAR | ZS2 PRO TEMP SENSOR w/LCD DISP | Carrier
Brand: Carrier
SKU: ZS2PCAR
67000186 | User Interface KIT | Friedrich Air Conditioning
Brand: Friedrich Air Conditioning
SKU: 67000186
67000209 | WALLMASTER User Interface KIT | Friedrich Air Conditioning
Brand: Friedrich Air Conditioning
SKU: 67000209
67000181 | CONTROL BOARD KIT | Friedrich Air Conditioning
Brand: Friedrich Air Conditioning
SKU: 67000181People Also Searched
1638-2
Dwyer Instruments 1638-2
1638 2
16382
Dwyer Instruments 1638 2
Dwyer Instruments 16382
1638-2 price
Dwyer Instruments 1638-2 price
1638 2 price
16382 price
Dwyer Instruments 1638 2 price
Dwyer Instruments 16382 price