LATEST NEWS
[ go back ]
New DEPA® E4 - Compound Diaphragm
Crane ChemPharma Flow Solutions, based in Düsseldorf, and a part of Crane Co., is accustomed to being at the cutting edge of state-of-the-art technology, and its latest invention, the DEPA® E4 Compound Diaphragm, continues that tradition. Industry insiders hail this innovative design as one enabling unprecedented advancements in the Air Operated Diaphragm Pump Industry - it has already earned the label of "New generation diaphragm".
A special "noppedE4" surface, which refers to a uniform sequence of small mounds radiating in a band located medially within the diaphragm, imparts a level of flexibility to the DEPA® E4 that is second to none, even when compared to standard rubber diaphragms. Available in four sizes, ranging from 1/2" - 2", the diaphragm combines versatility and functionality.
It is constructed as a single unit from a combination of PTFE and EDPM, coming into contact with liquid and air respectively. The outer piston, usually a separate component in standard pumps, is entirely encapsulated.
DEPA® E4 offers four primary benefits for end-users: increased life span, improved safety, increased efficiency, and an ultra clean working mechanism.
The increased flexibility enables greater flow rates combined with reduced air consumption, resulting in energy savings. The flexible nature of the DEPA® E4 Compound diaphragm gives it a longer life-span while by that very fact increases the length of replacement intervals (reducing replacement frequency), which generates savings in both operation and maintenance, while decreasing down-time. The diaphragm can be installed and replaced easily due to its single-unit construction.
The laminated design of the new DEPA® E4 Compound Diaphragm ensures the diaphragm surface is impermeable. This facilitates greater safety and an ultra-clean working mechanism, which prevents leaks/deposits and greatly limits areas for bacteria build-up.
The high chemical resistance is maintained right through the entire pH range (0-14) against most media.
EDPM is electrically conductive, which makes it suitable for use in ATEX-conforming pumps, and the diaphragm is approved for use in Zone 0 when used in conjunction with pumps made of stainless steel casting.
The new DEPA® E4 Compound Diaphragm is compliant with CE markings.