Armstrong International D7465 Diaphragm Refrigerant Enhanced Readability: The 4 1/2

Enhanced Readability: The 4 1/2 inch dial face offers significantly better resolution than standard 2-inch utility gauges for identifying subtle pressure drops

A steady signal or specific flash pattern allows the technician to diagnose faults like "No Flame Detected" or "Limit Switch Open" without pulling the multi-meter for every check

Durable Construction: Built with a forged brass valve body and NEMA 1 rated housing for long-term service in mechanical rooms

ensure all unused outlets are securely plugged with the provided socket plugs

Armstrong International D7465 Diaphragm Refrigerant Enhanced Readability: The 4 1/2The Armstrong International D7465 Diaphragm is a precision engineered steam trap replacement part specifically designed for the Armstrong 535 series radiator traps. This high quality elastomer diaphragm ensures optimal thermal response and reliable sealing within HVACR systems. By utilizing advanced steam trap bellows technology, the D7465 responds accurately to temperature changes, effectively discharging condensate while preventing live steam loss.