Armstrong D25249 Diaphragm Assembly Replacement Kit

Armstrong D25249 Main Diaphragm Kit is an OEM diaphragm assembly replacement built for Armstrong International’s GP2000 2000 Series pressure-regulating valves. It fits 2-1/2" and 3" flanged configurations and is catalogued with the MPN D25249, identifying it as the official Armstrong diaphragm kit for these valves. The kit is associated with Armstrong International’s 2000 Series diaphragms and weighs about 2 lb, making it a compact, genuine replacement part for service use. Several listings note that D25249 directly replaces the older K2134 diaphragm, signaling cross-compatibility within Armstrong’s diaphragm lineup for the GP2000 valve family. This diaphragm kit is intended for use in Armstrong GP2000 valve installations to restore proper diaphragm performance, supporting reliable pressure regulation in HVAC-related applications. Typical distributor information indicates that items with this part number are sold as a genuine Armstrong replacement, with lead times varying by supplier; some listings indicate stock and standard shipping while others show backorder.