test chambers
and has no ozone-depleting effect. It is
non-toxic, non-flammable, non-corrosive
and chemically stable. Steffen Hönlinger,
director of marketing says, “We are pleased
to be setting a new industry benchmark in
the field of environmentally friendly
refrigerants for extremely low
temperatures – and to be once more a
pioneer for our customers.”
The refrigerant regulation for
fluorinated greenhouse gases significantly
tightens the restrictions placed on
manufacturers of systems using FC
refrigerants and stipulates new
requirements for operators of existing
systems with regard to their testing and
documentation obligations. R23 will also
become scarcer and more expensive due to
the quota system.
As one of the world’s leading specialists
for environmental simulation testing
systems, Weiss Technik identified these
impacts at an early stage and started
to develop its own refrigerant for deep
freeze systems. \\
Janko Förster is head of product management at
2
3 Weiss Technik
Successful take-off.
Safe touch-down.
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AEROSPACETESTINGINTERNATIONAL.COM // SHOWCASE 2020 173
compound would meet the stipulated
requirements while providing the
advantages of hydrocarbons.
The mixture needed to reach very low
temperatures but also remain chemically
and thermally stable in the case of
temperatures exceeding 180°C. Within
this context, the parameters of freezing
temperature, combustibility and vapor
pressure curve had to be optimized in
order to ensure that WT69 remains
non-flammable and non-explosive
throughout the entire temperature range
and can be used under the same system
pressure as that of the existing systems.
These properties were confirmed in more
than 100,000 test hours in 20 system
configurations over a total period of
three years.
WT69 is independently certified and
meets all requirements for a future-proof
refrigerant for applications down to -70°C.
All test profiles can continue to be used
and the results remain comparable. Given
that WT69 is a normal synthetic
refrigerant, no safety review, separate
cooling or increased amount of refrigerant
are required. WT69 is reliably available
200 mm x 132 mm + 3 mm BZ
Engineers for engineers.
Higher, faster, further – engineers are continuously optimising
aircraft, helicopters or satellites. With lighter-weight composite
materials, more efficient engines and more sophisticated
electronics and communication systems. At the same time,
the quality requirements for production 4.0 are increasing.
We take up the challenges from the industry and are your
partner for the development of individual solutions for
Environmental Simulations, Industrial Heating Systems,
Air Dehumidification, Clean Rooms and Climate Solutions.
Check in now.
Test it. Heat it. Cool it. www.weiss-technik.com
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