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IPP & Renewables

BMG’S INTERAPP DESPONIA AND BIANCA BUTTERFLY VALVES

BMG’s Fluid Technology division supplies and supports an extensive range of components for fluid
technology systems and general industrial applications. These products include valves, hydraulic hoses
and fittings, accumulators, cylinders, heat exchangers, hydraulic motors and hydraulic plumbing, as
well as pumps and reservoir accessories.

Important valves in BMG’s portfolio include directive ATEX 94/9EG, ensuring safe
InterApp Bianca and Desponia butterfly operation in explosive environments.
valves, which are recommended for high
efficiency and safe use in demanding Notable features of the Bianca series include
industrial flow control applications. a high liner collar, a PFA disc over-moulding
on the shaft, as well as a life-time pre-loaded
“Robust butterfly valves are designed for safety shaft sealing, ensure reliable primary
dependable shut-off and control of corrosive and long-lasting secondary shaft sealing, Important valves
fluids, as well as high-purity applications,” even for demanding operating cycles and at in BMG’s portfolio
says Willie Lamprecht, BMG’s Business Unit high temperatures. include InterApp
Manager, Fluid Technology Low Pressure. Bianca and Desponia
“Compact butterfly valves, with good The chambered liner prevents cold flow butterfly valves, which are recommended for high
flow characteristics and low maintenance at the flange sealing surface for increased efficiency and safe use in demanding industrial
requirements, are extremely versatile and service life and the PTFE liner, in combination flow control applications.
ensure dependable operation, even in the with the PFA-overmoulded disc, ensures
toughest environments. low friction, thus longer life of the system. Notable features of this range include an
Other features include an external shaft external shaft sealing mechanism which
“Unlike a ball valve, the discs of butterfly sealing mechanism to protect the valve protects the valve neck hole and a long neck
valves are always present in the passageway neck hole and a robust self-lubricating and design that allows pipe insulation. A retaining
within the flow. This means a pressure drop maintenance-free bushing. A Stainless Steel washer offers blow-out protection and O-rings
is induced in the flow, regardless of the valve label enables full traceability. that are built in the shaft passage, form part of
position of the valve. Ball valves should BMG stocks a wide range of semi-finished the reliable shaft sealing system.
only be used for isolation, whereas butterfly components to offer short delivery times,
valves can be safely used for isolation and even on large sizes of the Bianca series up to Sealing lips on the flange face offer perfect
control of flow. tightness and the optimised liner shape
DN 900.
ensures a precise grip to the body. The square
“An advantage of using quarter turn butterfly Typical applications for Bianca butterfly driven disc offers effective and durable torque
valves rather than any other type of valve, valves are in mining and slurries for the transmission and polished disc edges minimise
is the simple, wafer-shaped design, with extraction of acids and solvents; for the friction.
fewer parts, for easy repair and minimal processing of additives in the oil and gas
maintenance.” sector and for highly corrosive processes in The Desponia range ensures safe operation
the steel industry. This series is also suitable in water treatment processes, as well as in
BMG’s InterApp Bianca centric butterfly power generation and for demanding chemical
valves, with durable PTFE liners, are built for use in water treatment where the smallest processing applications. These valves can
for long service-life and are suitable for impurities need to be avoided. also withstand operation in the steel industry,
aggressive and corrosive fluids and for BMG’s multi-purpose InterApp Desponia and where shut-off valves used to gas molten steel,
applications where absolute purity is Desponia Plus centric butterfly valves, with a are exposed to harsh conditions. These valves,
essential. tough body and robust elastomer liners, are with specially-coated discs, are also suitable
designed for safe and reliable regulation of for mining and slurries, for use in extraction
These high-performance valves, which liquids and gases in diverse sectors. processes which require valves with the
are available in sizes between DN 32 and highest abrasion and corrosion-resistance.
DN 900, are manufactured with a ductile Desponia valves, which are available in sizes
iron, carbon steel or Stainless Steel body, from DN 25 to DN 1600 and pressures up BMG’s strategy to enhance its fluid technology
to suit the requirements of all industries. to 16 bar, are suitable for various industrial services to meet growing market demand,
Bianca butterfly valves can be individually applications. This range can be supplied with encompasses the introduction of new
configured by BMG to ensure dependable a cast iron and ductile iron body. products, with the latest developments in
operation and optimum safety in specific design technologies, materials and coatings.
applications. The Desponia Plus range comes in sizes
between DN 25 and DN600, with high- Fluid technology services also cover project
For example, FDA compliant Bianca valves pressure applications up to 20 bar and is engineering and consulting, cylinder design
(DN 50 – DN 200) with mirror-polished suitable for high-temperature or vacuum and manufacture, training, repair and testing,
Stainless Steel discs and high-purity PTFE applications, as well as process automation. as well as on-site container services. BMG
liners, ensure safety for the production of This range is available with a body made of also offers total process and lubrication
active pharmaceutical ingredients. Bianca ductile iron, cast iron or Stainless Steel. management solutions throughout Africa.
valves with PFA-coated discs and PTFE liners
are recommended for use in highly corrosive, The liners and discs of this series play a For further information
chemical applications. crucial role in elastomer-lined butterfly Willie Lamprecht, Business Unit Manager, Fluid
valves, as they are the only two parts that are Technology Low Pressure, BMG
Valves in this range, with specially-selected in contact with the fluid. Flucast® liners are Tel: +27 11 620 1581 or +27 11 955 1119
conductive disc and liner materials, also suitable for abrasive applications and also Email: williaml@bmgworld.net
conform with the explosion protection meet FDA and EU regulations. Website: www.bmgworld.net
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