DEPA Diaphragm pumps

DEPA have manufactured high quality, robust diaphragm pumps for over 30 years. A full range of metal, plastic, food grade and pharmaceutical (CIP/SIP) pumps are available.

Particular mention should be made of air valve arrangement which quieter than rival brands and very effiecient.

Also of note is the excellent value injection moulded polypropylene pumps.

Much of the range is ATEX approved, this allows the pumps to be used in hazerdous areas such as petrochemical applications and in particular on printing presses.

A full range of accessories is available for the pumps.

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Cast Metal Series M

DEPA Series M Air-Operated Diaphragm Pumps were developed for the smooth transfer of abrasive, solids-containing and viscous media. The direct pneumatic drive means that there is no need for electric driven motors, base plates and couplings.

The compact and efficient designs are easy to transport, and are therefore flexible enough to use on construction sites, mining applications as well as in stationary operation in different industries.

Bodies made of cast aluminium AL 233, ductile iron GGG 40, cast stainless steel 316L and Hastelloy C are available so that the pumps can be individually adapted to transfer tasks. The elastomer materials for diaphragms, valve seats and valve balls have to be selected from the compatibility list.

Size range: DN15-DN80 (0.5"-3")

Applications: Chemicals, Mining, Water and Waste Water, Paints and Colours, Auto, Shipping, Ceramic, Machinery Equipment etc.

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Plastic Series P

In some applications usable metals will not stand up to the corrosive nature of particular discharge media. Therefore we have developed the Series P, using individual body parts made from plastic.

Our manufacturing process ensures maximum stability of the pump body, even under extreme operating conditions and in aggressive environments. Unlike cast metal pumps, Series P pumps do not require pressure restriction.

Various materials for body, diaphragms, valve seats and valve balls are available so that the pumps can be individually adapted. All connecting flanges are in accordance with DIN, ANSI und JIS.

Size range: DN15-DN80 (0.5"-3")

Applications: Chemicals, Water and Waste Water, Paints and Colours

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S/S Series L (Food)

DEPA Series L (Food) pumps are constructed of extra-bright polished stainless steel. They have been developed for applications in the food and beverage industries where stainless steel pumps have been an indispensable standard for process and transfer duties for many years.

This versatile range meets the high demands placed upon it, with respect to housing materials (stainless steel 304 or 316L), surface quality (up to 0.5um available) and elastomer materials (FDA approved).

Due to the large ball-valve clearances these pumps can handle media containing sensitive solids, such as pieces of fruit, meat or vegetable, without damage. Solid size is dependant on the pump size.

Size range: DN15-DN80 (0.5"-3")

Applications: Food and Beverage

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S/S Series L (Aseptic)

DEPA Series L Type DH / DL DEPA Pumps are suitable for chemical cleaning in place (CIP) or steam sterilisation in place (SIP), particularly within biopharmaceutical applications. They are designed for the transfer of abrasive, viscous or shear sensitive media, including products with entrained solids.

These pumps require minimal maintenance, and feature a corrosion resistant construction with all metallic product-wetted parts in 316 stainless steel (or 304). Other features include maintenance-free control valves, a stainless steel base with integral anti-vibration mounts, mufflers and air-intake filters for sizes 25 to 50.

Size range: DN15-DN80 (0.5"-3")

Applications: Pharmaceutical, Cosmetics

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DEPA Accessories

DEPA Air Operated Diaphragm Pumps can be fitted with a variety of accessories for most applications, even in the field of automation.

The range of accessories comprises coupling systems, suction and discharge hoses, air service units and various suction strainers and suction pipes. The active and passive pulsation dampeners are available in the same variety of material combinations as the pumps.

The pumps can be equipped with mechanical and electronic switching equipment, sensors, slow-start valve and dosing controls for monitoring purposes, and open-loop and closed-loop control.

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