Crest Process Engineering.
Pumps for Industry

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DEPA Air Operated Diaphragm Pumps

EHEDG Certified Pumps for Food & Pharmaceutical Application


Stainless Steel, Series L Pump

Series L are made of extra polished stainless steel developed for applications in the food, pharmaceutical, cosmetic and beverage industries.

In these industries, stainless steel pumps have been an indispensible standard for many years, used for process and transfer duties.

Pumps are available in 204 or 316L stainless steel with surface finishes too 0.5 µm and FDA approved elastomers.


Models available

DL-SF Cast Stainless Steel 316L electro-polished
DL-SL Stainless Steel 304 polished
DL-SU Stainless Steel 316L polished
DL-UE EHEDG Certified, Stainless Steel 316L Ra<0.8µm electro-polished
DH-UE EHEDG Certified, Stainless Steel 316L Ra<0.8µm electro-polished, flanged


Type DL15 (0.5") DL25 (1.0") DL40 (1.5") DL50 (2.0") DL80 (3.0")
DL-SF - -
DL-SL
DL-SU
DL-UE
DH-UE -


EHEDG Certified for CIP Cleanliness

This DL-UE and DH-UE ranges of DEPA Air operated diaphagm pumps are full certified according to the EHEDG standards for cleanliness and hygiene after CIP (Clean in place) or SIP (Sterilise in place) cleaning.

This proves that these pumps are suitable for application in the most stringent of hygienic applications in the food, pharmaceutical and bio-tech industries. Cleanliness was the focal point in the design of these pumps and their carefully controlled interior surface finishes and polished exteriors make them ideal for such applications.

Due to the large ball valve clearances, these pumps can handle media containing solids such as pieces of fruit, meat or vegetable. These sensitive products are transfered through the pump without damage.

For larger view of the certificate, please click the image to the left.


Some usefull downloads.....
Material Compatability Datasheet. 1.0 MB Polished DH Pumps Datasheet. 555 KB


DEPA pumps being tested
during the manufacturing process.
A typical application in the food industry.




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