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The astronomic time switch calculates daily sunrise and sunset times based on geographic location
the P100AP-2 features an automatic reset mechanism that closes the circuit once the system pressure rises back to 60 PSIG
Durable Construction: High-grade printed circuit board (PCB) components designed to resist vibration and thermal stress typical of industrial heater cabinets
this unit is the engineered direct replacement for the 1403612
Spence E-3-250 Valve Els PW 29614 The astronomic time switch calculatesThe 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
