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Duplex stainless steels for nuclear applications
25 June 2019

Langley Alloys has recently completed a contract for the supply of duplex stainless steel, for application in a nuclear power station. Duplex stainless steels are commonly specified for applications involved with water treatment, desalination and distribution.... Read more...

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Duplex SS decanter centrifuge by GN Solids Control

01 October 2018

Decanter centrifuge is one of the main products by GN Solids Control, which is used in many industries. Currently, the decanter centrifuges are being assembled in the GN factory. Once completed, they will be shipped to Russia for a wastewater treatment project there. The order is for a GN 14 inch drum diameter unit with model GNLW363C-VFD.

The GN 14 inch decanter centrifuge drum is made using duplex stainless steel 2304, which is much better than SS316L. The centrifugal casting technology ensures the material distribution is done evenly - to guarantee the excellent dynamic balance. The decanter centrifuge wearing parts like the screw propeller, inlet slurry distribution port and solids discharge port are protected using tungsten carbide alloy material. Inside the collection box and around the solids discharge port, GN installed scrapers to prevent the solids building up so as to protect the drum.

GN has equipped the 14 inch decanter centrifuge with a VFD control panel to run the drum at speeds of 0-32mm rpm and the feeding pump with different flow rate. The operator only need to input the desired speed on the HMI touch screen and the centrifuge will run per the instruction.

In addition to 14 inch decanter centrifuges, GN provides them in lengths 9, 18, 22, and 30 inches by changing the centrifuge drum length and cone angle - these models could be applied in different industries.

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