Calpeda submersible grinder pumps

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March 18, 2015

Latest news from Calpeda Pumps is that their popular range of drainage pumps, known for reliability, and efficient capable performance, has had a new edition in the form of the GQG series.

Calpeda grinder pumps


So what differentiates these pumps from the crowd?

They incorporate a high power grinder made from AISI440C steel, commonly used for cutting tools, which makes them suitable for pumping waste water containing long fibrous paper or textile materials, for both domestic, residential and industrial installations.

The “business end” (the grinder) is made up of a three-bladed knife turning against a fixed knife containing 8 cutting holes, so multiply this by the running speed, and it all adds up to around 69,000 cuts per minute.

In addition to its great strength, that comes from the material specifications (cast iron and steel), and its resistance to wear due to the internal double mechanical shaft seal running within an oil chamber, the GQG series offers good installation flexibility. The delivery port allows for three different fixing types: flanged DN 32, or threaded G 1 ½ inch, or for duck foot coupling SA G2.

To guarantee safe reliable starting with single-phase pumps, a control box with a dedicated capacitor is supplied.

Maintenance, (the bit that really interests us) is made easier due to the possibility of resetting the blade tolerances without having to dismantle the pump.

As soon as Calpeda release the data sheets, we shall be posting them here.

Meanwhile, we also supply grinder or macerator pumps from Flygt, Lowara, Caprari, Ebara, KSB and in fact most leading manufacturers.

We can supply these pumps either as stand alone units or as part of a pre packaged pumping station constructed from either HDPE or GRP.

Please do not hesitate to contact us with any enquiries you may have.