About Aluminum Pumps

Aluminum pumps are used in paint, varnish, automobile, waste water, ceramic, porcelain, mining, building and chemical industries. More than 20 models with different sizes and designs are available to serve almost any type of application.

The sturdy cast aluminum construction ensures high abrasion resistance when pumping abrasive media, a low flow resistance due to the high surface finish, availability throughout a wide temperature range, excellent corrosion resistance, and a long lifetime. In combination with the well-established control system, these compact and powerful cast aluminum pumps are easy to transport and are therefore used as both mobile units or stationary equipment. During the development of the pumps, great attention was paid to service friendliness, in order to minimize downtime.

Operating Principle & Model Information

Double-acting, positive displacement Series DH pumps operate with two alternating pumping chambers. The compressed air which drives the unit is admitted through a control valve, to the rear of each diaphragm in turn, so displacing the medium from alternate pumping chambers. In the pump illustrated below, the right-hand pumping chamber is in the intake position. A vacuum has been created by the retraction of the diaphragm and the pumped medium flows into the chamber. The left-hand diaphragm, which is supported by compressed air, simultaneously displaces the medium present in this chamber. Since the two diaphragms are connected by a common piston rod, suction always occurs in one chamber whilst discharge is occurring in the other.

Flexible Multiport Connections

• A customized manifold design that improves ball valve guidance, increases functionality and provides up to 25 different installation options
• Error free assembling in combination with single-center block
• Multi-porting provides many options for installation, such as easy vertical orientation for emptying of drums and no need for additional adapters

Innovative Flange Design

• "Block-mounted" pump and air chambers provide a safe and well-defined diaphragm clamping mechanism. The diaphragm is fixed to its specifications to provide consistent lifetime wear and tear and eliminate overstretching of the pump
• Outer rim of diaphragm is held like an O-ring with exactly defined position and deformation, due to block-bolted pump chamber
• Improved leakage tightness, through consistent diaphragm fixture
• No alignment needed for pump chamber and center block

Maintenance In Place (MIP)

• Cast feet integrated in the center block housing enable maintenance in place that can reduce downtime by up to 25%, decrease the number of required parts by 30%, and eliminate the need to remove the pump for maintenance (compared to the previous model)
• Optimized for error-free disassembling and reassembling; also for built-in situation
• Rubber feet can easily be mounted due to slotted locating hole in the center block housing