Dwyer Instruments 1638-2 Pressure Switch 320735-701 For installations in return air

For installations in return air plenums

This commercial mixing valve is rated for fluid temperatures ranging from 20°F to 250°F

Reliable motor design for fans

System Reliability: Precision balancing reduces mechanical stress

Dwyer Instruments 1638-2 Pressure Switch 320735-701 For installations in return airThe Dwyer Instruments 1638 2 Pressure Switch is a high precision, large diaphragm instrument engineered for monitoring differential pressure in air conditioning and industrial process applications. This SPDT differential pressure switch features a robust 1. 0" w. c. to 3. 0" w. c. operating range, providing essential reliability for damper positioning and duct air control. Designed for use with air and non combustible gases, the unit utilizes a 1 8"