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Ships within 48 hours · Estimated delivery Sep 24 - Sep 29
maintaining the exact furnace pressure specifications required by the manufacturer
Constructed from high-strength
Does the kit include the required seal
Optimized Response Time: Fast electrical actuation ensures precise modulation and immediate flow termination in sensitive fluid management systems
Reliable Voltage Conversion: Delivers stable 24V from 208/240V input for consistent system operation
Watts 0383021 Valve Refrigerant maintaining the exact furnace pressureThe Watts 0383021 is a high capacity ASME Section IV safety relief valve designed specifically for commercial hot water space heating boilers. This Watts 740 series relief valve features a 1 1 4 inch NPT female inlet and an expanded 1 1 2 inch NPT female outlet, engineered to decrease discharge velocity and prevent potential backpressure issues within the return line. With a factory set relief pressure of 35 PSI and a certified steam discharge
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