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High-Temperature Resilience: The silicon cable jacket is rated for the full sensor range up to 248
Industrial-Grade Construction: Built with a durable zinc body
Constructed from high-strength
maintaining the exact furnace pressure specifications required by the manufacturer
Watts 0383021 Valve Refrigerant High-Temperature Resilience: The silicon cableThe 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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