Seepex BN 5-12 Series, Operation & Maintenance Manual

Page: 35 / 309

10
An overview of the pump designs.
Ever higher demands on conveyance, spending cuts and a lack
of space in the industrial sector have meant that progressive
cavity pump designs have been continually enhanced. The
connection from the drive to the pump is one element that
has been further developed.
Block design
The block design is the most common construction of our pro-
gressive cavity pumps. It helps to save space, is easy to assem-
ble, has a reasonable price and is easily maintained, because
the wearing parts can be replaced faster.
BN range pumps with geared motor and base plate flanged
directly to the pump. Space-saving design, easily maintained
due to plug-in shaft connection, cost-efficient.
Conventional design
Technically complex and expensive designs are increasingly
giving way to simple, cost-effective designs.
NS range pumps with free bare shaft, geared motor, flexible
coupling, coupling guard and base plate. Long design, easily
maintained due to plug-in connection, universal drive confi-
guration, cost intensive.
NS range pumps with free bare shaft. Electric motor, V-belt,
guard and motor adjustment. Complex design, drive arrange-
ment difficult to maintain, cost intensive.
Key advantages
•
Fits easily in your system due to the compact
block design
•
Faster exchange of wearing parts due to the
plug-in shaft connection
•
Cost effective due to simpler design using
standardized components
Block design
Conventional design 1
Conventional design 2