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MAK685
and NMB heavy-duty couplings - the new series of magnetic couplings for
API 685-compliant process pumps
The
universal modular coupling concept for pumps - as initial equipment or
retrofitted - is based on the proven MAK66 series and available with a
choice of two solenoid variants, namely the samarium-cobalt version for
applications involving operating temperatures of up to 350 °C and the
neodymium-iron-boron version for temperatures up to a maximum 120 °C.
This means that the size of each coupling can be optimally matched to the
requisite operating conditions and performance requirements. Attractive
pricing enables cost-effective sealing solutions of the very highest
technical quality. The
circulation of the product-lubricated friction bearing is separate from
the can's cooling flow. This gives the friction bearing enhanced
efficiency of operation, even in applications involving low-viscosity
media, and a combination with coolable or heatable bearings is possible.
Where gas-bearing media are concerned, the gas content is efficiently led
away from the can compartment via a hollow shaft, thereby ensuring that
the friction bearing is not subject to any dry running. The
NMB heavy-duty coupling extends the application range of magnetically
coupled pumps up to a driving power of 300 kW while ensuring optimum
efficiency at the same time. The patented can technology reduces eddy
currents by up to 95% and in doing so enables considerable savings in
terms of costs. The
advantages at a glance >
Friction bearing and solenoid are made from high-quality materials,
thereby enabling a large spectrum of
applications >
Optimized
circulation guidance makes for increased load bearing capacity for the
bearing and cooling of the can >
Excellent
efficiency with NMB couplings in comparison to conventional solenoid
actuators >
Up
to 300 kW driving power Operating
limits T
up to 1342 Nm (NdFeB) up
to 963 Nm (SmCo) p
40(52) bar t
-40 °C + 250 °C (350 °C) n
3600 rpm
www.burgmann.com
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+ Media Sponsors +
Wilhelm
Sicking |
With
its new MAK685, Burgmann Industries GmbH & Co. KG of
Wolfratshausen/Germany has launched a series of magnetic couplings which,
together with the NMB heavy duty couplings, offers a wide range of
applications in the higher pressure and performance range. The MAK685 is
ideal for use on API 685-compliant process pumps in the chemical industry
and refinery sector with a power output of up to 90 kW, while the NMB
extends the power range up to 300 kW.
