< 30 psi, 30-2500 psi, Vacuum
Ashcroft 740 Diaphragm Seal
Ashcroft® series 740 and 741 large diaphragm seals are used with low-range instruments or high static pressure dp gauges with low differential pressure. They are used for applications requiring an impermeable metallic diaphragm, and the diaphragm is electron beam welded to the isolator body. They are available in many material combinations.