Lochinvar & A.O. Smith 100208403 Pressure Switch R 410A the VS2427G14U020 provides a standardized the VS2427G14U020 provides a standardized solution that balances precise flow control with the high torque requirements of 240V motorized valves The Conbraco 13 214 B15 (also labeled as the Apollo RVS13 112) is a high capacity low pressure steam safety valve designed specifically for ASME Section IV heating boilers and systems Direct Compatibility: Identical to legacy part numbers PRS2702 and PRS2702K for drop in installation in existing gas trains this switch ensures that the burner only initiates when the minimum required fuel pressure is available at the gas train inlet