SEALING
NEW SEALING SYSTEM
CUTS ASSEMBLY
COSTS
A new sealing system could improve
productivity by as much as 600%,
making for huge savings for
companies using it.
Avseal XT is a new
sealing system offering
rapid and cost-effective
sealing of high-pressure
hydraulics applications that
provide a permanent, reliable,
metal seal that’s capable of
withstanding pressures of over
1,600 bar.
A cost analysis study by
Stanley Engineered Fastening
discovered that when
compared to an, existing,
alternative sealing method,
utilising Avseal breaksteam
plugs reduces the number of
sealing processes, increasing
productivity by 600% &
reducing labour costs by
€20,833.33 (when comparing
like-for-like fastener costs at
€20,000).
HOW IT WORKS
Avseal XT blind breakstem
plugs are installed into plain
drilled cross holes in hydraulic
manifolds & valve blocks to
provide a permanent metal
seal making it suitable for
even the most demanding
applications.
The Avseal XT range
suits holes of sizes 5mm
up to 10mm & is designed
specifically for the sealing
of high-pressure hydraulics
in industrial control gear,
ground transportation,
agricultural equipment &
many other sectors.
In terms of product
performance, the high-tensile
steel stem & aluminium sleeve
provides extreme sealing
capability and has been tested
at proof oil pressures of over
1,600 bar (23,200 lb/in2).
The range is intended for
hydraulic applications with
cyclic working pressures up to
500 bar (7,250 lb/in2) and has
undergone stringent quality
controls of material & process
throughout production. This
included air-leak and pressure
testing of every production
batch to verify sealing
integrity.
The Avseal XT range
works with plain drilled holes
with no special preparation
such as thread- cutting or
reaming required. Sleeve
radial expansion is driven
by high breakstem load to
ensure reliable sealing with
no tool settings involved.
The rounded stem head
is larger than sleeve thereby
protecting it from accidental
damage during insertion.
Additionally stem head form
provides guidance into the
closer fitting application hole
sizes - either with manual or
automated placing tooling.
Avseal XT System features
include rapid Installation and
lower assembly costs, since
Avseal XT Plugs installation
saves time compared to
tapered plugs, ball plugs and
threaded plugs. The system
also features a high-integrity,
all-metal seal. This is achieved
through huge radial pressures
acting on the aluminium
sleeve, engaging it into the
microscopic grooves of the
drilled hole.
In addition, Avseal XT’s
pressure profile is suitable
for very high-pressure fluid
sealing applications (up to
500bar working pressure). The
burst capability is 1,600 bar.
To ensure the best possible
vibration resistance, an
internal tapered stem locks
into the installed sleeve rigidly
in order to provide robust
plugging of holes.
Stringent quality controls of
material & process throughout
22 Issue 4 2020