Plastic Pumps

DEPA Non-Metallic Diaphragm Pumps

DEPA Non-Metallic Air Driven Diaphragm Pumps

The DEPA range of non-metallic pumps are available either as injection moulded or machined from solid. The pumps are designed for problem-free pumping of highly corrosive and abrasive products in a wide range of applications. These pumps can also be used up to the maximum pressure of 7 bar.

Typical Industry Examples

• Chemical
• Galvanic and Coating
• Paint & Varnish
• Paper & Timber
• Pharmaceutical
• Plant & Mechanical Engineering
• Power Stations
• Waste Disposal Technology

Available Construction

• Moulded Polypropylene
• Solid Polypropylene
• Solid Electro-Conductive Polypropylene
• Solid PVDF
• Solid PTFE
• Solid Electro-Conductive PTFE

PM Series - Moulded Polypropylene Pumps

DEPA Moulded Polypropylene Pump

The new pump generation PM is a further development of DEPA's proven and successful polypropylene pumps series.

The development offers a combination of modern industrial design combined with the daily requirements of pumps, like temperature, chemical resistance and high mechanical strength.

The computer-aided design of the injection moulding achieves a consistant high quality with excellent surface finish for low flow resistance and good abrasion resistance.

The result of the new design offers a strong and compact type of construction.

These new DEPA pumps have all the advantages of Air Operated Diaphragm pumps, dry running, selfpriming, gentle product handling and the ability to stall against closed discharge lines.

Various options allow a wide variety of applications for the pumps.

Internal and external air valves, ANSI, DIN and JIS flanges and screw connections are available.

For the product wetted parts (diaphragms, valve seats and valve balls) there are several elastomer materials available.

Flow rate max. 9 m³ per hour at a maximum 7 bar.

Solid PTFE Pumps

DEPA PTFE and electrically conductive PTFE Air Driven Diaphragm Pump

DEPA Air Operated Diaphragm pumps DH15-40 in PTFE and electrically conductive PTFE.

Advantages at a glance:

• Bolted design without clamp bands
• Design appropriate to the material; avoidance of cold flow
• No deformation under pressure
• Lateral connections - after disconnecting the pump from the pipework no medium residue will drop down on pump body
• space-saving inline assembly is possible
• One-piece manifold without bonded or welded joints
• Better flowrate due to less direction changes
• One-piece PTFE compound diaphragm without external piston optimised design and geometry smooth surface
• Only one size diaphragms for DH15-DH40, that means low stock and spare costs
• Extra low frequency and minor stroke leading to extended life time
• Internal air valve because of a better protection against environmental effects
• Centre block in PP supporting stability and rigidity