Dwyer 1638 Series Precision Pressure Switches
Product Introduction
and 1638-5, these switches are ideal for HVAC systems, process
control, and industrial applications requiring accurate pressure
activation.
Product Features
Visible Set Point Indicator
A clear, easy-to-read dial allows real-time visualization of the
pressure set point, simplifying initial setup, operation, and
troubleshooting. This feature reduces downtime by enabling quick
identification of activation thresholds without additional tools.
Large Diaphragm for Low-Range Accuracy
The switches utilize a large diaphragm design to deliver precise
pressure sensing in low ranges, ensuring reliable activation at
exact pressure points. This makes them suitable for applications
where minor pressure fluctuations require responsive control, such
as fan coil systems, air handlers, or fluid level monitoring.
High Current Load Capability
With the ability to support current loads up to 15 amps, the 1638
Series eliminates the need for additional relays or components in
most small electrical systems. This simplifies wiring in HVAC
installations, pump control, and process equipment, reducing
installation costs and complexity.
Versatile Model Selection
Available models cover a range of pressure spans to match diverse
application needs:
1638-0: Ultra-low range for delicate pressure sensing
1638-1/2/5/10: Graduated ranges for medium to higher low-pressure
applications
Rugged Construction
Built to withstand industrial environments, the switches offer
durable performance in HVAC ducts, process lines, and mechanical
systems.
Applications
