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B O I L E R OPERATOR - Arkansas Department of Labor and ...
www.labor.arkansas.govAnswer: Check Valve 2. What is the function of the check valve? Answer: To prevent the water from returning to the condensation tank from the boiler after the pump shuts off. 3. Four safety features required on the steam boiler are: Answer: Safety relief valve, blow-down valve, low water cut-off, and pressure gauge 4.