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Pumping aggressive, explosive and highly toxic liquids requires the highest level of process safety. To protect people and the environment, leakage of the pumped liquid must be avoided - including in the event of a pump failure. For these most critical applications a magnetic drive pump equipped with a monitored, double containment shell still remains the safest solution.
To reduce the heat generated by a purely metallic, double containment shell and at the same time to improve the overall efficiency of the pump, Klaus Union has developed and patented a new hybrid double containment shell.

The hybrid double containment shell combines two separate shells.The inner shell is a highly corrosion resistant metallic containment shell while the outer, secondary shell is a non-metallic containment shell made from heavy duty technical ceramics.

- Reduced heat input into the pumped process liquid
- Increased reliability when pumping liquids close to their boiling point
- High corrosion resistance
- Higher efficiency leading to power savings
- Wider application range than full metal, double containment shells
- Fully compliant with requirements for secondary containment system as defined by API 685, 2nd Edition, § 3.66 (page 10)
- Primary and secondary containment integrity is
constantly verified by the pressure transmitter
- Easy and reliable detection of containment breach through a standard pressure transmitter
- High spare parts availability by using of standard Klaus Union components
- Ability to flush the area between shells
(according API 685, 2nd Edition, § 6.7.9)
- Available across entire Klaus Union mag-drive pump range
- Reliable and maintenance friendly construction

Application Coverage
- Pressure Rating: max. PN 40 (40 bar at 120 °C / 580 psi at 248 °F)
- Temperature Range: - 60 °C to + 400 °C (-76 °F to +752 °F); higher on request
- Pump Speed: up to 3600 rpm

Further reading

Exhibitor: Klaus Union GmbH & Co. KG


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