Armstrong Fluid Technology 875000-801 Coupler Insert

The Armstrong Fluid Technology 875000-801 Coupler Insert is a flexible drive component used in HVAC systems, to connect motor shafts to pump assemblies. It fits within a coupler housing, and absorbs vibration while accommodating slight misalignment between rotating parts. This insert supports smooth torque transmission reducing stress on connected equipment during operation. It is commonly applied in hydronic heating and cooling setups, circulating pumps operate continuously. Within the system the insert recreates an essential role in maintaining stable performance limiting mechanical damage and avoiding direct contact between components.