CN Series Magnetic Drive Pump

• Refineries
• Chemical and petrochemical industries
• Refrigeration and heat engineering
• Liquid gas plants
• Galvanic engineering
• Power plant & solar thermal fields
• Tank installations
• Pharmaceutical industries
• Fibers industries

- Advanced cyclical path design
It adopts advanced cyclical model of high pressure entrance and high pressure exit circulation ( see the arrow’s trance in section drawing). More suitable for vaporized mediums.

- Special self-balancing performance of axial force
There will be one stationary balancing plate between impeller hub and support disc if the diameter of impeller equals to or is larger than 250mm, this new design can make the axial force autobalance by adjusting the radial and axial gaps.

-Perfect flexible connection structure
It adopts inserted structure for siliding bearing and thrust button. The tolerance rings are used for radial connection. Also tolerance rings are filled between in shaft and shaft sleeve to mitigate the pressure which shaft imposes on the shaft sleeve becuse of heat expansion.

-Containment shell
The stamped arc bottom of the containment shell improves the rigidity of the containment shell, and alleviates the stress concentration on the bottom of containment shell and then protects it from being damaged.

Model description:

Take CNA40-250A as an example:

40- Pump outlet diameter(mm)

250- Impeller diameter(mm)

A-Impeller for the first time custting

Materials:
Pump casing: Carbon steel, SS316, Duplex Stainless Steel
Impeller: Carbon steel, SS316, Duplex Stainless Steel
Containment shell:  Hastelloy C4/Titanium
Inner Magnet Carrier: 316 SS/Hastelloy C4
Internal Bearings: Silicon carbide,
Bearing Frame: Cast steel/nodular cast iron
Magnets: samarium cobalt 2:17