Armstrong International A22181-1 is an OEM replacement gasket for Armstrong steam traps in the 812 and 882 series. It carries the Gasket F/812,882 designation and is designed to sit between two parts of a float-and-thermostatic steam trap to create a reliable seal when the trap is reassembled. This part features a 1/2 in NPT port size and is specified for service up to 125 psi and 450 °F, making it suitable for high-temperature steam and hot-water applications. The gasket is described as having a stainless steel body, ensuring durability in demanding boiler-room environments.
