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TRANSFLUID
VAL-PO-CI
WALVOIL
ZEC
NEW PRODUCTS
MULTI PUMP DRIVES
FOR INDUSTRIAL
APPLICATIONS
Transfluid – Italy has
introduced a new line
of multiple pump drives.
Designed to be bolted directly
to the engine fl ywheel
housings, these devices are
available in three different
sizes – MPD 14, MPD 18 and
MPD 22 - with SAE 3 to SAE
0 housings. The cast casings
are designed to house four
heads that allow mounting
of up to four pumps or eight
units with the back–to–back
confi guration. The MPD
features an integral oil sump
for the gear and bearings
lubrication. According to
the power fed to the PTOs,
it is possible to mount a
fl uid cooler heat exchanger
inside the MPD casing or an
external air-oil radiator. An
elastic coupling from Reich
Kupplungen is mounted on
the power intake side in-line
with the engine crankshaft
axis to avoid torsion problems.
On the output side, the SAE
dummy wheel is capable of
transmitting the whole engine
power, a feature which is not
common to all pump drives.
Any make of coupling or
PTO with SAE fl ange can be
connected to the Transfl uid
MPD, however the company
internally manufactures the
line of KPTO variable fi ll
fl uid couplings and HFO /
HFR oil actuated PTOs. The
MPD is suitable for mobile
crushers thanks to the new
Diesel engine generation as
well as the increasing need
of pump drives on machines.
The simplicity and the
compactness of the system
is the key of MPD success.
readerservice@fieramilanoeditore.it n.44
PNEUMATIC FITTINGS
AND TUBES
Sang-a Pneumatic Co.
produces high quality and
reliable pneumatic fi ttings
and tubes. It offers a
complete range of products:
automatic quick couplings,
compact automatic quick
couplings, fl ow controls,
rotary joints, stop fi ttings,
unidirectional valves, stop
cocks, hand valves, plastic
quick couplings, silencers,
air guns, pneumatic tubes,
assembly fi ttings and
couplings. Sang-a products
stand out because of their
elliptical sleeve enabling,
through light pressure, an
easy disconnection of the
tube in confi ned space. They
can be used with operating
pressures up to 20 bar and
are vacuum tight up to 60
°C. Pneumatic fi ttings are
suitable for polyurethane,
polyamide, polyethylene,
nylon and rilsan plastic tubes
having external diameters
ranging from 3 to 16 mm with
Tefl on (R)-metric tapered
gas or O-ring (G) parallel
gas threads, from M3 to ½...
The body is made in brass,
nickel-plated brass and
technopolymers. In order
to meet the requirements
of a demanding market, the
company delivers high quality
products in compliance with
Iso 9001 standard. Sang-a
products are distributed
in Italy by Val-Po-Ci, a
company located in Mantello
(Sondrio).
readerservice@fieramilanoeditore.it n.45
LOAD-SENSING
PROPORTIONAL
SECTIONAL VALVE
Walvoil introduces the new
proportional Load Sensing
DPC200 valve suitable
to obtain fl ow towards
proportional usage to the
spool position in any working
condition irrespective of
both charge and number of
working sections (the only
limit is in case of saturation
in fl ow). Taking OEM needs
into consideration, with the
DPC200 and the Load Sensing
system, users can benefi t
from energy saving, longer
component life, reduction of
energy dissipation as well as
the opportunity to develop
elaborated circuits. Energy
is especially saved when
the DPC200 works together
with Load Sensing variable
displacement pumps. The
sectional valve, supplied from
1 to 10 working sections, can
be used in applications with
fi x displacement pumps (open
centre confi guration - CA) or
with variable displacement
Load Sensing pumps (closed
centre – CC). Main features
include compensated /
not compensated working
sections and interchangeable
spools with 22 mm diameter.
DPC200 is supplied with
manual control, proportional
hydraulic control, electrohydraulic
control and back
operating electro-hydraulic
control integrating diagnostic,
safety and electronic
functions. DPC200 can be
used for several applications,
especially for concrete boom
pumps, backhoe loaders,
drilling machines, wheel
loaders.
readerservice@fieramilanoeditore.it n.46
NEW PRODUCTS
LOW, MEDIUM AND
HIGH PRESSURE
THERMOPLASTIC
HOSES
With over forty year
experience in the sector
of fl exible thermoplastic
hoses at low, medium, high
and very high pressure,
ZEC offers a wide range of
linear, single, multiple and
spiral thermoplastic hoses,
characterized by inside
diameter from 2 to 40 mm,
operating pressure from 5
to 600 bar and operating
temperatures from –60 °C to
+260 °C. Different product
lines are supplied: hoses for
low and medium pressure, in
Rilsan PA11, Rilsan PA12, Ptfe,
Pebax, Hytrel, Polyamide 6,
Polyamide 6.6, Polyurethane
and Polyethylene. They are
offered in around 40 different
diameters and 7 colours, even
in single, doubling or multiple
spiral versions, for application
mainly in pneumatics and
lubrication, depending on
the specifi c requirements of
the end user. High pressure
thermoplastic hoses are made
with raw materials used and
tested on low and medium
pressure hoses except for
specifi c applications requiring
alternative products. Specifi c
single or double plaits in
polyester fi bers, aramide,
high tensile steel, stainless
steel, or mixed materials are
placed to reach the pressures
required by oil-hydraulics
and pneumatics, lubrication,
solvents and paints, gases
and chemical products. These
hoses are provided either in
single, doubling or multiple
versions.
readerservice@fieramilanoeditore.it n.47
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APRILE 2010