Tube Products International March 2015

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64 Tube Products International March 2015
Fi t t ings
Solenoid valve for high-
pressure applications
The type 6027 solenoid valve from
fluid technology specialist Bürkert is
available in a new high-pressure version
for pressures up to 250 bar. The new
variant of the type 6027 seals the valve
seat with a ceramic ball seal.
The seal is self-centring and provides
reliable and long-term protection
against leaks. The ball material (Al2O3)
is resistant to abrasion, wear and
chemicals.
The material used for the seat of the
solenoid valve is highly temperature-
resistant polyether ether ketone (PEEK).
The hardness and chemical resistance of
this material fulfil the high requirements
with respect to the sealing properties of
the solenoid valve. The use of stainless
steel and a laser-welded plunger guide
tube provides high pressure resistance
(five times the nominal pressure) and
low leakage.
The valve is offered in a direct current
version. For devices with alternating
current, a rectifier connector socket
is included in the standard scope of
delivery.
Typical applications for the universal
type 6027 valve are critical gases and
fluids.
The high-pressure version offers
solutions for the construction of test
rigs. One example for this would be
filling systems for air conditioners in the
automotive industry. This application
is relevant, since the EU has defined
new limits for the emission of climate-
damaging coolants; starting in 2017, air
conditioners in new cars can be filled
only with coolants having a relatively
low global warming potential (below
150).
In addition to test benches, the new
high-pressure valve is also suitable
for gas applications, where the use of
sliding rings reduces abrasion.
Bürkert Fluid Control Systems –
Germany
New nozzle check valve
YPS Valves, a designer and
manufacturer of valves for the
hydrocarbon processing, chemical,
nuclear and off-shore industries, has
developed a Nozzle Check Valve. The
valve is available to order in sizes from
0.5" to 2", with larger sizes to be made
available later in the year.
The company says that the Nozzle Check
Valve has been produced to provide
customers with an alternative to swing
check valves. Managing
director Rachel Wormald
commented, “We have
introduced this valve to
our range in response
to customer demand. As
well as being competi-
tively priced, they are
also very efficient and
easily maintained, and
can be manufactured
from both castings and
bar material.”
The first major
consignment of the
Nozzle Check Valve has
been completed and
despatched to a client in
China, for liquid oxygen
fluid service.
YPS has also invested £120,000 on an
improved dye penetrant testing facility
at its manufacturing base in Leeds, West
Yorkshire, UK. The new facility increases
the capacity to conduct additional DPI
tests with more efficiency, and is used
to confirm the integrity of castings and
welds.
The on-going investment in equipment
has included the recent addition of
a new CNC milling machine capable
of producing very large high pressure
valves particularly for oxygen service,
which is now fully operational.
A high-capacity ultrasonic degreasing
machine is also in use after being
commissioned at the end of last year.
The machine can degrease valves up to
a 16" 900 globe valve, making it suitable
for a range of applications, including
oxygen service.
YPS Valves – UK
The new type 6027 solenoid valve variant for
high-pressure applications up to 250 bar
YPS Nozzle Check Valve