HILGE single and multi-stage centrifugal pumps in 316 rolled stainless steel provide exceptional solutions for specialized applications and processes in a variety of fields. Hilge Pumps are designed to cope with media with unique physical and chemical characteristics. A permanently installed pump is built into the respective pipeline at the starting point which applies the necessary force to the media by sucking it in on one end, and discharging it on the other. This causes a pressure increase on the discharge side of the pump and a reduction in pressure at the suction side of the pump.

Due to their design, centrifugal pumps cannot vent the suction line when started up, meaning that they cannot initially draw up the media themselves. You must either arrange suction pipe work so that the fluid falls under gravity from a vessel above the pump or fill the pump and the suction line with fluid before starting it. In addition, centrifugal pumps are even more sensitive to air pockets or bubbles in the media, which can lead to a breakdown if air pockets collect in the impeller channels.

Self-priming centrifugal pumps such as liquid ring pumps are capable of venting the suction line. This requires the pump to be at least half-full of fluid. The star-shaped impeller thrusts the fluid in the pump into the side channel. This creates a suction on the suction side of the pump which is then capable of venting the suction pipe work. The atmospheric pressure on the fluid surface then forces the fluid up the pipe work to the pump.

Hilge pumps are manufactured with a "pore-free" design with makes them an ideal solution in industry where purity is a paramount concern. Below is a representation of the difference between a cast vs. rolled manufacturing. If purity is your goal, let Hilge be your answer!

Microscopic difference between a rolled surface vs.cast

Hilge Pumps are manufactured by rolled stainless steel and are not cast for supreme smoothness. Their surface finish is 0.4µm, 240 grit and a low (&le1%) ferrite content

The Hilge CONTRA series centrifugal pump is available in 316L Rolled stainless steel for remarkable smoothness in operations. Available in either a vertical or horizontal design based off of your needs. Ideal for sterile and CIP application, eliminating particle contamination residue and build up. The vertical design is completely self draining. Low NPSH values make this ideal for heavy duty applications.

The CONTRA series is also ideal for low-flow, high head applications and is also available in a cart-mounted option for easy mobility .

The Hilge CONTRA Series Centrifugal pump is ideal for:

The Hilge SIPLA series of self-priming centrifugal pumps is available in 316 Stainless steel for durability and long life. Its liquid ring design is available in Bloc (close coupled), Super (stainless shroud and peg feet), or CN (bare shaft foot mount) models.

Port connections can be customized to your specific needs along with either a shaft seal with either single or double mechanical seal fittings. The SIPLA model has the ability to handle liquids with entrained air which makes it particularly suited to CIP scavenge applications with a low shear for yeast harvesting. The Adapta® modular bearing housing system is available on the Sipla 6, 12, and 18 models for easy motor installation.

The Hilge CONTRA Series Centrifugal pump is ideal for:

The Hilge Maxa/Maxana line of single stage end suction centrifugal pumps are manufactured in 316Ti rolled stainless steel. Available in close coupled or bare shaft foot mountings makes the Maxa/Maxana series very versatile in its setup for use. The Maxa/Maxana series impellers are the shrouded style. Flange mounts are ANSI or DIN standard for ease in hookup.

The Maxa/Maxana series shaft seal is available in either single or double mechanical configuration based off of your needs. Due to quality state of the art manufacturing processes, the Maxa/Maxana series are a competitively priced centrifugal pumping system that's ideal for heavy duty applications.

The Hilge CONTRA Series Centrifugal pump is ideal for: