This OEM replacement part is configured as a normally closed (NC) auto-reset limit switch

This TXV orifice assembly is critical for maintaining accurate refrigerant flow control in high-capacity air conditioning and commercial refrigeration systems

and a high-visibility position indicator

Reduced Mechanical Friction: High-polish finish on the stem surface protects packing longevity and ensures smooth actuator response

Featuring a robust brass body and high-grade EPDM diaphragms

Utica-Dunkirk 18682 Pressure Switch 322056-301 This OEM replacement part isThe Utica Dunkirk 18682 Pressure Switch is a critical safety component engineered for precise combustion air proving in high efficiency boilers and furnaces. Rated at . 60" WC (Water Column), this normally open (NO) switch is factory calibrated to ensure the inducer fan generates sufficient static pressure before allowing the ignition sequence to proceed. As a veteran technician knows, maintaining the correct differential pressure is non negotiable