Nor East Controls 30685491-001 Diaphragm Els PW 17895 If the valve body is

If the valve body is intact and free of debris

4 inches WC

Compact 1/2" Footprint: Fits standard NPT piping in residential furnaces and compact boiler chassis

It monitors different pressure thresholds for low-fire and high-fire stages

it ensures seamless compatibility with older blower assemblies and fan motors where shaft alignment is paramount

Nor East Controls 30685491-001 Diaphragm Els PW 17895 If the valve body isThe Nor East Controls 30685491 001 Diaphragm is a precise 11 inch replacement component engineered for high performance fluid control and pressure regulation. Identified by product code GA 33671 801, this diaphragm is built to integrate seamlessly with Type 01 Pneumatic Actuators and compatible globe control valves often found in HVACR and industrial process systems. Designed for direct acting configurations, it maintains the necessary linear valve