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this component continuously monitors the boiler’s water level and breaks the 24V control circuit to the burner if a low-water threshold is detected
maintaining signal integrity in commercial water heating applications is non-negotiable
This unit is designed for both gradual (modulating) and two-position (open/closed) applications depending on the signal from your pneumatic controller
including the 2A6H4
Bell & Gossett 110133 Relief Valve R-407A this component continuously monitors theThe Xylem Bell & Gossett 110133 Relief Valve is engineered to protect hydronic heating and hot water systems from excessive pressure conditions. This 1 inch pressure relief valve is factory set to open at 75 PSI, helping safeguard boilers, heat exchangers, pumps, and associated piping from overpressure events. Rated for systems up to approximately 2,385,000 BTUH, this valve is commonly specified for commercial and industrial HVAC hydronic applications