Surface World March 2019 SW_March_2019_LR | Page 74
PRE-TREATMENT, SURFACE PREPARATION, DEGREASING & CLEANING
PTFE tank cleaners for
harsh chemical environments
The Challenge
Hydrofluoric acid is
well known for its
ability to dissolve many
materials including glass.
Consequently many
traditional ‘chemically
resistant’ materials such
as stainless steel are not
suitable for use in tank
cleaning applications where
hydrofluoric acid exposure
is likely. A further problem
is that in many applications
hydrofluoric acid can cause
crystalisation of waste
products onto surfaces
which could potentially
clog and block nozzles on
cleaning systems.
In this particular cleaning application required
a wide cleaning diameter nearly 4 meters
lowest coefficients of friction of any material
which means that crystal deposits are far less
likely to adhere to the tank cleaners surfaces.
The only slight problem on this application
was the need to adapt the standard BSP
threaded connections with those that were
compatible with the existing pipework.
However, once a simple thread adaptation
was made the HydroWhirl Poseidon tank
cleaners proved to be an ideal solution to a
challenging application.
The Benefi ts
(tank volume 38m3), so using static nozzles
was not feasible. The potential problem
of crystalisation also meant that the small
orifices found in most typical spray balls
were likely to be an issue. While most
spinning or rotary tank cleaners could
achieve the required reach, their metallic
components would not withstand the challenges
associated with cleaning these tanks.
The Solution
The HydroWhirl Poseidon is one of the few
all PTFE tank cleaners on the market and is
available from THE SPRAY NOZZLE PEOPLE.
With absolutely no metal parts the all PTFE
construction provides excellent resistance to
even high concentrations of hydrofluoric
acid. Furthermore, the added benefit of PTFE
being extremely slippery, ensures one of the
In addition to the essential requirement of
chemical and corrosion resistance, the other
design features of the HydroWhirl system
ensure rapid cleaning and less water
consumption as they operate at lower
pressures compared to static tank wash
systems. Also, connectivity should be simple
and flexible given the possible variations at
each site and this is helped by the 3 options
of; pipe, tube or DIN clip-on, along with
threaded connections available on request.
Also, the use of FDA approved materials
means the cleaners are ideal for use in
clean-in-place (CIP) applications. Also,
because the spray characteristics of the
HydroWhirl system are designed for slow
spinning and longer spray dwell time on the
target surface, the result is increased impact
compared to conventional rotating designs.
Visit: www.spray-nozzle.co.uk
New dates have been released for Surface World Live 2020.
LIVE 2020
- we have everything covered
18th & 19th March 2020, Hall 11, NEC, Birmingham
Surface World Live 2020 will be returning to Hall 11
at the NEC in Birmingham. The next show will be held
on the 18th & 19th March 2020.
If you are interested in booking a stand then call Nigel Bean
on 01442 826826 or send him an email at [email protected]
To see who has already reserved a stand at Surface World Live 2020 just visit: www.surfaceworld.com
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MARCH 2019
read online: www.surfaceworld.com