A.J. Antunes 8021200198 Dual Differential Pressure Switch

Description

The A.J. Antunes 8021200198 is a genuine OEM dual differential pressure switch designed to monitor air or gas pressure differences in commercial equipment. This model provides two pressure sensing ranges on one unit — 0.17″–1″ W.C. and 0.17″–6″ W.C. — making it versatile for applications where more than one pressure threshold must be monitored for safe operation. This switch features a Single Pole Double Throw (SPDT) electrical contact, 1/4″ compression fittings for plumbing connections, and a sensitive diaphragm to accurately detect pressure changes and actuate control circuits as needed. It is commonly used in HVAC systems, combustion chambers, boilers, air handlers, and other gas or air pressure control environments where precise differential pressure monitoring is essential.

Key Features

• Dual pressure activation ranges: .17–1″ W.C. and .17–6″ W.C.
• SPDT switch action, suitable for control circuit integration
• 1/4″ compression fittings for connection
• Designed for reliability and OEM compatibility