Rekos pumps can be supplied as simplex piston metering
pumps type KR and duplex piston metering pumps type
Advantages of piston metering pumps are: minor dependency
on back pressure and linear flow variation as a function
of the stroke length.
The metering pumps are therefore very suitable for proportional
metering where the stroke length is adjsuted by means
of a remote control signal.
Metering heads are supplied in plastic for max. 10 bar
and in stainless steel for up to 200 bar.
The correct choice of the metering heads depends on
the aggressivity of the chemical, its temperature and
viscosity, and on the system pressure. Environmental
factors (harsh operating conditions, radiant heat) must
also be considered.
Suction and discharge valves
Suction and discharge valves can be supplied as double-ball
valves, spring-loaded single-ball valves or disk valves,
depending on the size. Spring-loaded valves are recommended
if the viscosity of the chemical exceeds 400 mPas.
Metering heads are generally fitted with a flushing
attachment. Flushing water should be applied if the
chemical being used is very aggressive, to prevent damage
by corrosion from leakage that is bound to occur.
REKOS KR PUMP MODEL