CONEXPO FLUID POWER
HYDRAFORCE
Reaching beyond MARCH 10-14, 2020
LAS VEGAS
South Hall 3 – S80431
CARTRIDGE VALVE TECHNOLOGY EXTENDS ITS REACH WITH INTEGRATED
ASSEMBLIES, FEEDBACK SENSING AND TELEMATICS
LEFT: HydraForce now
offers electrohydraulic
controls and telematic
solutions for mobile
equipment
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iVTInternational.com February 2020 79
The compact and versatile cartridge valve has
brought efficiency and flexibility to hydraulic
systems with higher pressures, multiple-functions, and
reduced leakage and maintenance. At this year’s
ConExpo/IFPE, visitors will be able to see how cartridge
valve technology has extended its reach far beyond the
basic check valve into the realms of integrated
assemblies, feedback sensing and telematics.
HydraForce, one of the leading cartridge valve
manufacturers and a pioneer in proportional valve
technology, will demonstrate several new hydraulic
control options for the construction equipment industry.
Boom lock valve
When excavators or backhoe loaders are doing heavy
lifting, it can put a strain on the hydraulic system.
An unexpected spike in pressure or flow could cause
a hose to rupture, endangering both load and operator.
To protect against this possibility, a lowering control
device can be used to prevent boom or arm drop and
ensure controlled lowering of the load in the event of
a hydraulic line failure. Most conventional lowering
devices control the flow of the hydraulic system.
HydraForce however, has developed a Boom Lock
Valve (EBLV) that controls pressure instead of flow. The
ELBV boom lock valve is an all-in-one integrated
assembly featuring a proportional pressure control
cartridge valve in a single-piece housing that also
contains a check valve. It has a poppet seat for low
leakage and spool-type metering for improved control.
It is internally piloted, without the need for additional
pilot lines or sources. And it can be plumbed to function
as a relief valve or a sequence valve to reduce the effect
of back pressure from the main control valve and
hydraulic plumbing.
Manual operator valve
Some machines are just easier to handle with a manual
operator – truck-mounted cranes, concrete pumps,
trenchers and winches are a few examples. Now,
cartridge valve technology has come to these machines
thanks to the development of the HydraForce Manual
Operator Valve – a piloted, proportional directional
control valve with a manual control handle. It is available
in several flow ranges – 12-size (45lpm (12gpm), 16-size
(95lpm (25gpm), and 42-size (170lpm (45gpm) – and
two operating pressures – standard 240bar (3500psi)
and high pressure 350bar (5075psi). There are models
with a C-spool for cylinder or linear motion control and a
D-spool for motor or rotary motion control. In keeping
with the usual flexibility of cartridge valves, manual
operator valves of several different flow ranges can be
combined when a machine requires a 12-size control for
winch operation, a 16-size for boom extension and a
42-size for swing and elevation.
A faster five-way solenoid
Autosteering controls demand the highest speed and
precision, and to fill that need HydraForce developed a
faster five-way solenoid valve. The SP10-57F is a 5-way,
3-position proportional valve with minimal spool
overlap, making it an excellent choice for closed-loop
autosteering control systems. This valve works well
dynamically controlling the position of a steering
cylinder in conjunction with satellite navigation that
provides real-time feedback to close the control loop.
With a response of 41ms, the SP10-57F is typically able
to respond up to 25Hz. The 5-way proportional design
includes an integral load signal at port 1. This pilot signal
can communicate load pressure or even flow demand to
a logic valve for priority flow-sharing or load-sensing.
Telematics
As the construction equipment market moves toward
greater use of telematics, HydraForce has partnered with
Epec Oy of Finland to offer IoT solutions. The IoT
offerings include Epec’s GlobE cloud-based service, GatE
secure access gateway and the new ERAU-6200 Remote
Access Unit that can be paired with HydraForce
electronic control units (ECUs). The possibilities range
from geotracking, condition monitoring of machinery,
remote desktop control of machine calibration and
smartphone access to machine hydraulic controls,
operator and service manuals, and more. iVT
Author: David Price, senior global marketing manager,
Hydraforce Inc.
Gate and Globe
telematics solutions
ERAU
remote
access
unit
Auto-steering
manifold
SP10-57F fast-acting
directional control valve
/pivt
/iVTInternational.com