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maintaining the correct spring span is essential for effective pneumatic valve sequencing and stabilizing the control response against flow surges in steam and water systems
For two-speed applications
this is dedicated 4-wire smoke detection hardware requiring separate power and initiation circuit wiring
Whether you are troubleshooting an attic ventilator or a downdraft blower
In many high-torque applications
Allanson Transformers 421-340 Transformer 30067439-890 maintaining the correct spring spanThe Allanson 421 340 Ignition Transformer is a heavy duty ferromagnetic transformer engineered specifically for Armstrong and ESSO burners. Designed for constant duty, this double pole transformer operates with a 120Vac supply voltage and delivers a consistent 10,000V secondary voltage at 23mA. Its mid point ground configuration and Rajah connector HV terminal ensure a secure electrical interface for high demand oil burner ignition systems. Built with
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