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PRODUCT News
June 2016
MODERN MINING
59
Hydraulic and Automation Warehouse
(HAW), part of the Hytec Group, one of
the largest distributors of hydraulic com-
ponents in Southern Africa and specialist
supplier of products for mobile machin-
ery, has added newly-developed cast iron
gear pumps with extended longevity and
numerous advantages to its existing range
of Salami gear pumps and other hydraulic
components.
The newly developed PG331 series is a
spheroidal-designed cast iron gear pump
with four different porting arrangements.
It can be supplied in variations of 12 dif-
ferent displacements and has up to five
flange mounting styles and seven shaft
types. The pump design also allows for
standard SAE flanges.
The gear pumps are compact with
smaller dimensions achieved by installing
the gear set, gear support bushings, and
suction and delivery ports within the main
body, housed by a front mounting flange
and rear cover.“Competitor models, gener-
Cast iron gear pumps feature extended longevity
ally, have larger and longer front and rear
housings to accommodate shaft supports
which may separate port housings and are
therefore less compact,” explains HAW Key
Accounts Manager Dries van Wyk. “This
range of pumps can accommodate any
engineering design and satisfies a variety
of OEM manufacturing designs.”
Strength, high efficiency and long ser-
vice in severe operating environments are
achieved through the pump’s one-piece
drive shaft construction, with a large area,
and low friction bushings. “In addition,”
states Van Wyk, “an advanced thrust plate
design and high quality machining toler-
ances optimise performance and high
volumetric efficiency throughout the full
pressure range. This also allows for excel-
lent axial compensation. Moreover, PG331
gear pumps feature double shaft seals on
pumps with reinforced inner shaft seals
for motors.”
Another advantage of this pump range
is the high carbon content and low static
discharge capabilities of the pumps due to
their cast iron make-up. This combination
renders them ‘explosion-proof’, making
them a suitable choice for use on under-
ground vehicles and equipment – even
those used in fiery mines.
HAW is the official authorised
sub-Saharan Africa distributor for Salami-
manufactured gear pumps, motors and
mobile control valves.
Dries vanWyk, Hydraulic and AutomationWarehouse,
tel (+27 11) 281-3800
HAW’s newly
developed PG331 cast iron gear pump has four
different porting arrangements.