These parts are functionally identical

Standard 10mm or 8mm sockets/wrenches (depending on the specific nut version) are sufficient for securing the Belimo accessory clamp

it is designed to restore original factory close-off ratings and extend the service life of pneumatic valve assemblies without requiring a full valve body replacement

maximizing efficiency and reducing the risk of nuisance lockouts or carbon monoxide production associated with improperly sized aftermarket alternatives

Armstrong International A22181-1 Gasket These parts are functionally identicalThe Armstrong International A22181 1 is a high performance body gasket engineered specifically for inverted bucket steam traps. Designed for field service and maintenance of the Armstrong 812 series and Armstrong 882 series, this gasket ensures a pressure tight seal between the trap body and cap. In high pressure steam systems, maintaining steam trap integrity is critical to prevent live steam loss and maintain system efficiency. This component is