Armstrong

All Stainless Steel Thermostatic Wafer MT Series Steam Traps/Air Vents

Body : ASTM A240 to 304L
Pressure Range : Max. 250 psig @ 400°F (17 bar @ 204°C)
Capsule : All stainless steel—304

https://www.armstronginternational.com/products-systems/steam-condensate/automatic-and-continuous-air-vent-operation-increases-system-efficiency#:~:text=Armstrong%20air%20vents%20are%20ideally,2%2C700%20psi%20(186%20bar).