DEPA PUMP

For over 50 years DEPA® Air Operated Diaphragm Pumps have maintained a reputation of enabling high quality positive displacement solutions in diverse industries. Industries served include food processing, medical and pharmaceutical, chemical, paint, automotive, shipyards & construction, and water & wastewater.
DEPA® Closed Surface Diaphragms Series Nopped E4®
Building upon the success of the DEPA® nopped E4® PTFE Compound Diaphragm, the new DEPA® CLOSED SURFACE DIAPHRAGM SERIES is designed and manufactured in-house. The diaphragms ar available in EPDM, EPDM Grey, NBR, NRS, FKM* and PTFE compound.
Key Features And Benefits
EXTENDED LIFETIME
The absence of the outer piston reduces wear around the flexing area, increasing diaphragm life.

DEPA® Air Operated Diaphragm Pumps, Aluminium, Series M, Type DH-FA

DEPA® DH Next Generation Air Operated Double Diaphragm Pump Series DH15, DH25, DH40, DH50 and DH80 are made of cast aluminum developed for industrial applications.
Features And Benefits
- Special Pump Design with Flexible Multiport-Connections* & Free Flow Path manifold
- Cast feet integrated in the center block housing enables maintenance in place
- Block mounted pump and air chambers provide a safe and well-defined diaphragm clamping mechanism
DEPA® Air Operated Diaphragm Pumps, Cast Stainless Steel, Series M, Type DH-SA/SS
DEPA® DH Next Generation Air Operated Double Diaphragm Pump Series DH15, DH25, DH40, DH50 and DH80 are made of cast stainless steel developed for highly efficient operations within industrial and chemical applications.
Features And Benefits
- Optimized pump design improves efficiency by up to 57% and increases flow rate by up to 10%*
- Free-standing design with reduced number of parts and bolted design allowing for improved serviceability (maintenance-in-place)
- Flexiport design enables on-site adjustments to the port orientation and enhanced application opportunities with a pressure of up to 8.6 bar

DEPA® Air Operated Diaphragm Pumps, Powder Pumps, Series DP

DEPA® Air-Operated Double Diaphragm Pumps type DP can transfer easy-to-fluidize powders economically, in a virtually dust-free and smooth process.
Features And Benefits
- DEPA® powder pumps are portable and mobile
- The Y-Manifold allows better flow of fluid
- Lower cost and more efficient powder transfer than mechanical methods
DEPA® Air Operated Diaphragm Pumps, Stainless Steel Pumps, Series L, Type DL-SF/SFS
DEPA® DL-SFS and DEPA® DL-SF pumps are made of electropolished cast stainless steel with a surface finish of up to Ra 3,2 μm and FDA (Food & Drug Administration) approved elastomers. The pumps distinguish themselves through their versatile application range and rugged construction.
Features And Benefits
- Polished Cast Stainless Steel surface provides easy cleaning
- Tri-Clamp industry standard connections suitable for food and pharmaceutical applications
- Rugged Design with FDA approved diaphragms, valve balls and valve seats

DEPA® Air Operated Diaphragm Pumps, Stainless Steel Pumps, Series L, Type DL-SLV/SUV/UEV

The DEPA® DL-SLV and DEPA® DL-SUV DEPA® pumps are made of polished stainless steel with a surface finish quality of up to Ra* 3,2 μm and FDA (Food & Drug Administration) approved elastomer materials. The pumps distinguish themselves through their rugged construction, quick & easy dismantling, CIP (Clean In Place) and SIP (Sterilize In Place). Through the use of the stainless steel frame, the pump can be easily and quickly drained/emptied after CIP.
Features And Benefits
- Special pump design for an optimum of fluid guidance and large solid sizes
- Special V-frame for quick & easy dismantling to reduce downtime and to allow the pump to be easily & completely drained
- Suitable for CIP & SIP
DEPA® Air Operated Diaphragm Pumps, Non Metallic Pumps, Series P, Type PM/PP/PL
DEPA® Type PM/PP/PL pumps made of mechanically manufactured or specially injection moulded plastic parts was designed for problem free pumping of corrosive and abrasive products in galvanic applications, in the chemical industry, and in mechanical engineering.
Features And Benefits
- The simple, modular and robust pump set-up reduces downtimes to a minimum.
- The chemically resistant polypropylene enables the conveyance of corrosive products.
- Equipped with internal air valve and closed surface diaphragms without an additional diaphragm plate.

DEPA® Air Operated Diaphragm Pumps, Non Metallic Pumps, Series P, Type TP/TPL

DEPA® DH-TP and TPL pumps are made of PTFE and PTFE electro conductive housing material respectively. With the updated and optimized design, the pumps distinguish themselves through their simple, robust and rugged construction.
Features And Benefits
- The DEPA® PTFE pumps provide for fewer leakage paths through the implementation of integrated valve seats, manifolds with integrated flange connection, “block-mounted” pump chambers and air chambers and the rib design of DEPA® diaphragms.
- Improved valve ball guidance increases dry suction lift by up to 50%* versus previous designs.
- Maintenance downtime is reduced by up to 60% and the pump weight is up to 58% lighter compared to our competitors.
DEPA® Test Rig
The new DEPA® Test Rig provides peace of mind while pressure testing on all DEPA® pump sizes.
Features And Benefits
- Hydrostatic pressure testing: After maintaining a DEPA® AODD pump, the pressure test verifies leakage tightness of the pump.
- Operator safety: The test rig ensures safe and hazard-free pressure testing by means of a robust frame design with safety window, pressure limitation valves, safety couplings and an emergency stop.
- All DEPA® pumps: Testing can be conducted on all DEPA® pump sizes (up to size 80).

DEPA® External Air Valve

An innovative and robust DEPA® AirSave design increases the energy efficiency and service life of the pump. It delivers outstanding performance and operates at a low start-up pressure. Shorter maintenance downtime and reduced number of spare parts decreases the operating costs.
Features And Benefits
- Innovative and robust design increases energy efficiency and service life of the pump. The DEPA® AirSave System delivers outstanding performance, operating at a low start-up pressure with virtually no leakage.
- he economic operation of the pump provides ease of maintenance, low cost operation, reduces maintenance downtime and spare parts inventory, and increases plant capacity.
- Available for use in a broad range of applications: in all DEPA® pumps sizes DL/DH15, 25 and 40 (Series P, Type PM, PP, PL and Series M, Type FA, SA, SS). EX approved in use with ATEX-compliant DEPA® pumps.
DEPA® Self Drainage System
The Self Drainage System is an in-place drainage feature which removes the need for additional handling or the de-installation of pump or equipment and reduces the need for additional mechanical and/or electrical devices.
Features And Benefits
- Automatic in-line drainage eliminates the need to disconnect the pump.
- Efficient design creates a drainage path through the valve seat without additional moving parts, thereby reducing maintenance costs.
- Reliable performance reduces the need for additional electronic monitoring, thus reducing operating costs.

DEPA® Valve Ball Lifter

DEPA® Valve Ball Lifter design enables in-place drainage for residuefree operation in critical applications.
Features And Benefits
- Drainage in Place: Innovative design enables in-place drainage for residue-free operation in critical applications such as paint & varnish, storage tanks and filling machines.
- Ease of Operation: A dual-rotating pin ensures flawless operation in both clockwise and counter-clockwise direction, eliminating the challenges associated with sticking caused by media remaining in the pump housing.
- Extended Service Life: Design in combination with 316L stainless steel delivers superior resistance to corrosive chemicals such as alkalis, acids and solvents, thus ensuring reduced maintenance and longer service life.