Pneumatic Amplifying Relays
Model #'s: 50920 and 51145

The Pneumatic Amplifying Relay is an integralsubassembley of high pressure transmitters used in combustion control systems. The only difference between the two models is the thread size in the mounting block used for external fitting connections. The Model 50920 relay has 1/8 inch NPT connections for feedback and nozzle pressure lines, whereas the Model 51145 relay has No. 10-30 thread connections for the same pressure lines.

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517 Prospect Street --- York, Pa 17405 --- Phone: (717) 848-5960 --- Fax: (717) 848-6871