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EXTERNAL POLY PUMP SEW EURODRIVE
Description: The POLY dosing pump unit (EPP) consists of several
functional parts. The base
is a welded supporting frame which the
individual parts are attached to. EPP
supplies material for
spraying at the defined pressure and temperature according
to the
input parameters of the recipe.
Low-pressure polyol supply line
(with the pressure of 2 - 8 bar) is connected to
EPP input. It
leads to Mann & Hummel (A06) filter. Material is fed via
BARMAG
high-pressure gear pump (P01) via manifold (A04) fitted with
manometers (PI01, PI02), pressure transducers (PR01, PR02) and HAWE
safety
valve (V11). This pump is driven by SEW motor (MOT 01) via
SYNTEX35-
ROTEX GS 38/45 (C01) clutch. The material then flows (at
the pressure of 40 -
100 bar) through a flow-meter (QR01), heat
exchanger (HE03), high-pressure
filter (A07) and checkpoint.
Material pressure (PR03) and temperature (TE02)
are monitored
here. Material then continues via stream distributor to the head
and then returns to EPP via the stream distributor.
Another
checkpoint is on EPP return line. It monitors the material
temperature
(TE03). This is followed by three pneumatic valves
VSCDN4 (V30, V31, V32)
and pressure adjustment valve (V21)
S624454 that sets the pressure value during HPR.
Valve V31 is
closed in normal operation. It opens only during flow calibration
while valve V32 closes. V32 is closed also during spraying.
When
valve V30 closes, material flows to high-pressure circulation based
on
setting of the reducing valve V21.
EPP is in continuous
operation (during operation of the entire line), because
material
must keep circulating.
Approx. Onsite Dimension. (l x w x h): 800
x 1,600 x 2,000 mm, weight approx.: 250 kg
seller offer No. resale
894038
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