this spring return actuator operates in a normally closed (NC) configuration

Operating on a 24V power supply

This specific repair kit is focused on the diaphragm and O-ring elastomers

While some technicians attempt motor-only swaps

This part is compatible with various KMC series actuators where a 2-inch diameter active area is required for force transmission

Armstrong International 880-3/4-20 Trap Refrigerant this spring return actuator operatesThe Armstrong International 880 3 4 20 Trap is a high performance inverted bucket steam trap designed for reliable horizontal installation in demanding HVACR and industrial steam systems. Engineered with a durable cast iron body, this Series 880 model features a 3 4" NPT connection and is specifically optimized for a 20 PSI maximum operating pressure using a precision machined 3 16" orifice. Unlike standard traps, its free floating stainless steel