Are the brass swing check valves steam rated?

Neither the 0806xx12NL series No Lead Brass Swing Check Valves (CxC) or the 0806xx11NL series No Lead Brass Swing Check Valves (threaded) are steam rated. They have a maximum temperature rating of 212°F (100°C) and a maximum pressure rating of 200 PSI WOG Non-Shock (WOG pressure rating based on ambient temperature).