REOTEMP’s High Accuracy and High Displacement Threaded Diaphragm Seals are ideal for applications where high sensitivity or large fluid displacement is key to proper instrument performance. Designed with a diaphragm welded to the upper housing, the lower housing is detachable from the seal body allowing for easy cleanout of the process cavity without losing system fill. The High Accuracy Threaded Diaphragm Seal is most commonly mounted to Smart Transmitters (Gauge, Differential, and Absolute pressure), low pressure capsule gauges, mechanical DP gauges, and mechanical pressure switches. Extra Large 4.1″ Diaphragm for Maximum Sensitivity Wide Variety of Wetted Material Options 100% Helium Leak Tested Diaphragm Welds Easy Cleanout Design with Multiple Flush Port Options