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model (like the 71488512) will invert your system logic
Durable Construction: High-grade printed circuit board (PCB) components designed to resist vibration and thermal stress typical of industrial heater cabinets
the P100AP-2 features an automatic reset mechanism that closes the circuit once the system pressure rises back to 60 PSIG
Always verify the amperage and voltage on your existing nameplate before installation
Spence E-3-250 Valve Els PW 29614 model (like the 71488512) willThe Spence E 3 250 is a heavy duty, 3 inch pilot operated main valve designed for high capacity steam pressure regulation in industrial and commercial HVACR systems. Built with a rugged cast iron body and featuring 250# flange connections, this normally closed valve is engineered to handle a maximum inlet pressure of 250 PSIG at temperatures up to 450F. Its packless construction and balanced metal diaphragms eliminate the friction associated with
