Advertising Feature
Innovation in
RotaSafe RM2 Rota Val – 40 years of innovation
Nuisance Tripping Avoided focused on the future
Developed to eliminate After 40 years of innovative engineering, Rota Val is embarking
the problem of “Nuisance on its first significant change in corporate identity.
Tripping”, Rota Val’s new
RotaSafe RM2 rotor monitor With such a long history and the development of so many
represents a major advance new products, it is not surprising that a complete overhaul
over other types of rotary of the company’s identity and product literature also became
valve rotor protection necessary. Over the next few months a series of redesigned
equipment. brochures will be developed to reflect the exceptionally wide
range of rotary, diverter and slide valves now available.
Detection systems are required to stop a rotary valve instantly Customers Worldwide will identify with the diverse needs
if it detects rotor to housing contact, avoiding valve damage illustrated, from heavy-duty valves used in mining applications
and consequent product contamination. Even relatively minor to the “Hypergienic” valves now in common use in the
internal valve damage almost certainly invalidates ATEX Pharmaceutical industry.
certification requirements by opening a flame path. Significant
reduction of this problem can save considerable expense in The food industry is not forgotten. A constant drive for better
repair or replacement of affected valves. The Rota Val RotaSafe product quality, enhanced efficiency and safe handling has
RM2 detection circuit is Intrinsically Safe and therefore suitable lead to many new Rota Val developments. Significant
for all ATEX Zones. amongst these is the new RotaSafe RM2 rotor monitor,
which is more fully explained elsewhere, and the company’s
Rota Val’s RM2 has innovative control electronics, effectively ability to meet new European Machinery Regulations for
filtering unwanted electrical noise from unavoidable sources food applications.
that produce false signals.
Rota Val’s success stems from a simple formula. Make the
The new system is unique in that it can be adjusted to product fit the application precisely. That means using
measure contact resistance at very low values, to reliably experienced engineers to assess the powder handling,
distinguish between a genuine fault contact or false signals overall system and process needs and then designing an
such as product or CIP fluid conductivity. appropriate solution.
The differentiation of false from genuine signals has been a Continuous development has ensured that Rota Val already
major problem with systems where their design exhibits an has a large bank of possible solutions in the form of standard
innate inability to adequately deal with electrical noise. valves, many available “off the shelf”. To these may be
added a vast array of options such as special bearings,
Extensive testing of the RotaSafe RM2 by a number of rotors, CIP features, high temperature fittings, ATEX certification
customers has proven highly successful, leading to and construction materials.
announcement of the new monitor system to a wider market.
For rare or unusual applications, Rota Val has the ability to
Rota Val Managing Director Ian Blackmore commented: carry out a complete design, test and manufacture process
in cooperation with the customer and other system suppliers.
“This is a major advance in providing a reliable detection This facility has been used to produce very large, high
system to deal with common problems formerly associated performance rotary valves which withstand wide variations in
with sensors on rotary valves. By avoiding nuisance tripping, operating temperature for the tobacco industry, stainless steel
manufacturers can cut unnecessary production stoppages valves with extensive CIP features for use in pharmaceutical
and benefit through enhanced protection from costly product glove (isolation) boxes, lightweight blowing seals for road
contamination. transport trailers and fully-sealed diverter valves which use
pressurised inert gas to surround the conveying pipe,
Patent protection has been applied for our unique guaranteeing environmental safety from toxic chemicals in
RotaSafe RM2, which has now proven effective in food materials being conveyed.
and pharmaceutical applications. I believe it will have
an important impact on many manufacturing industries.” Rota Val is well aware of the value of a good website, and the
current version has received many appreciative comments
for its straightforward layout and informative content. This
will be reviewed and updated shortly.
Have a look at www.rotaval.co.uk for more information.
8 Solids & Bulk Handling February 2010 www.solidsandbulk.co.uk
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