330 Series Diaphragm Seals
This series of seals utilizes a diaphragm that is welded to the upper housing. An important feature is that upper housing can be separated from the lower housing without loss of fluid. The construction conforms to methods as described in ASME standard B40.2 section 2.3. The standard upper housing is classified as Continuous Duty (see para. 2..3.2.1 ASME B40.2).
