Australia's junior explorers - The ASIA Miner

Product News
Clean, safe and reliable fuel filling valve system
IN an industry that demands cleaner , safer
and more reliable fuel transfer technology,
mine dewatering specialist W eir Minerals
Multiflo (WMM) has achieved success by delivering
improved asset utilization, operator
safety and environmental outcomes for customers
with its Hydrau-Flo valve system.
Manufactured in Australia and in use since
1997, Hydrau-Flo fuel filling valves ar e used
globally by many of the biggest names in
construction and mining. The patented Hydrau-Flo
system is based on a sound mechanical
principle – spring-opposed hydraulic
pressure that delivers a clean, fast and safe
solution to organizations that transfer liquid
as part of their operation. WMM says Hydrau-
Flo valves achieve extr emely fast refuelling
times by delivering up to 1000 litr es per
minute into alloy, plastic or steel fuel tanks
and where the operation is alr eady utilizing
fast fill, the Hydrau-Flo system maintains tank
integrity by ensuring the tank is not pr essurized
during or following the refuelling process.
With Hydrau-Flo safety valves, the risk of
overfilling, spillage and diesel tank ruptur e
has become a thing of the past; so too the
risks associated with environmental hazards
and operator safety. All of these impr ove-
THE new Cat 777G Off-Highway Truck delivers
performance, production and fuel efficiency in
the 100-short-ton (91-tonne) size class. The
777 was first introduced by Caterpillar in 1977
and has proven to be a workhorse for mining
and large earthmoving customers. The 777G
replaces the 777F and Caterpillar says it delivers
greater levels of production and fuel efficiency
as well as enhanced safety , operator
comfort and service convenience.
The 777G achieves greater production with
7% more torque powering work and new
transmission controls that produce quick haul
cycles with automotive quality shifting. The
production increases are balanced with new
fuel saving strategies that include configurable
economy settings as well as an adaptive
economy mode that automatically
optimizes fuel consumption based on the
user’s production baseline. Fuel savings ar e
also realized through features such as auto
neutral idle and APECS transmission controls
64 | ASIA Miner | July/August 2012
ments have been achieved without the need
for electronics or complex arrangements
prone to blockage and failure. The Hydrau-
Flo valve system incorporates r obust fuel
filler safety and float control valves that provide
a r eliable, hydraulically-operated
arrangement that depends on fluid levels as
opposed to pressure. WMM says it is the
highly reliable and solid-state-design of the
Weir Minerals Multiflo’s Hydrau-Flo fuel filling valve
system delivers every day protection for fuel tanks.
Hydrau-Flo valves that allow customers to
be confident in fuel delivery and tank integrity,
with increased machine availability at
minimal economic or environmental cost.
It says a key benefit of Hydrau-Flo valves is
that operator safety is vastly impr oved due
New Cat 777G Off-Highway Truck delivers
where the truck becomes more fuel efficient
at idle in a forwar d gear and when climbing
grades. Customers can choose to engage
features like Engine Idle Shutdown and speed
limiting to further improve fuel savings.
In addition, the 777G is quieter and produces
fewer emissions. Caterpillar is intr oducing its
US EPA Tier 4 Final solution on the 777G two
years in advance of the ef fective date of the
regulation, which provides customers an opportunity
to advance sustainability goals. The
solution is simple and robust and includes engine
technology combined with diesel oxidation
catalysts. It requires the use of ultra-low
sulphur diesel fuel and low ash engine oil, but
requires no additional maintenance or opera -
tor input. For operations outside ar eas regulated
by the US EP A, the 777G r educes
emissions with Tier 2 or EU Stage II equivalent
technology and fuel efficiency.
Caterpillar has enhanced braking and
traction control for G Series. Hydraulic oil-
to traditional fuelling methods and associated
risks being eliminated. The use of
spring-opposed hydraulic pressure prevents
overfilling and removes the operator fr om
manually activating fuel shut-of f each and
every time the tank is filled. That means it
becomes impossible for employees to induce
a fuel spill by ‘topping of f the tank’.
This zero pressure, zero spill system for fast
filling provides organizations with industry
best practice for asset utilization, operator
safety and environmental outcomes.
The Hydrau-Flo valve system has been engineered
to work in conjunction with existing
fast fill machinery. It can be easily fitted to
new assets and existing assets r equiring a
better system for delivery of diesel fuel, and
can be used on any mobile or stationary
asset requiring delivery of coolant, diesel fuel
or water, where mechanical overfill protection
is required or fuel anti-surge or rollover
protection is needed.
With no sensitive electronics, WMM says
the Hydrau-Flo fuelling system boasts a low
number of moving parts and is one of the
simplest systems on the market today. It is a
highly configurable system that operates efficiently
in extreme cold (tested up to -65C).
immersed disc brakes are standard on all
four corners of the truck. The system design
increases slope holding capability and
provides fade resistant, responsive braking
performance. Design updates extend brake
component life by increasing the force used
to disengage the brakes. The optional Cat
engine brake can extend service brake life
and integrates with Automatic Retar der
Control, enabling fast downhill travel and reduced
cycle times.
The Cat 777G delivers greater levels of production
and fuel efficiency.