fluid handling
SMART DOSING PUMP (SDP).
A progressive cavity pump with integrated
controls for optimum dosing performance
SEEPEX’s SDP has an intelligent inverter drive programmed
locally via an HMI or centrally via a fi eldbus interface. The
SDP can be controlled by analogue or digital I/Os either
locally or remotely by a PLC. The fl ow rate is controlled
entirely from the pump drive which adapts to variations
in operating conditions ensuring accurate repeatable
dosing of thin to highly viscous products.
BENEFITS
Easy implementation of complex dosing in
continuous and batch modes
Minimal pulsation and high accuracy
Easy integration into higher-level controls and
automation systems
Temperature /pressure sensors protect the pump
Conveying capacity: up to 2,000 l/h
Pressure: up to 48 bar
SEEPEX UK Ltd.
[email protected]
www.seepex.com
New dosing pump
from SEEPEX for
accurate
flow
control
he new range of SEEPEX
Smart Dosing pumps
have intelligent drives,
enabling either stand-
alone automation or full
integration into higher supervisory and
control systems. These progressive cavity
pumps produce accurate, repeatable flow
in both continuous and batch operation as
well as easy control and calibration.
T
Progressive cavity pumps (PCP)s offer
significant advantages over other pump
designs, particularly where accurate dosing
control is needed or when high viscosity
or shear sensitive products are transferred.
SEEPEX UK Ltd.
92
This has recently been demonstrated
at a large pharmaceutical company in
Ireland, who were experiencing problems
with efficient addition of urea into their
production processes. Precise amounts
were needed for solubilisation of other
materials, so accurate control was
essential. The existing diaphragm pumps
used produced flow with a high degree
of pulsation, pulsation dampeners were
needed and calibration pots used to set up
dosing rates. Additional problems arose
when solid particles were present, causing
the ball valves on the pump to stick with
resulting downtime.
l [email protected] l www.seepex.com
PECM Issue 28
When SEEPEX dosing pumps replaced
the diaphragm pumps these problems
were removed as PCPs have a very low
pulsation action, do not need check
valves or pulsation dampeners and have
a linear accuracy with just one variable,
pump speed, to adjust flow rates when
required. The pharmaceutical company
also installed SEEPEX PCPs for molasses
dosing as the flow rate is not affected
by product viscosity, ensuring efficient
molasses addition across a range of
temperatures. Both the molasses and urea
pumps have been supplied as ATEX rated
and are manufactured with stainless steel
components.