REVISION 1
REVISION 1
APPLICATION
APPLICATION
• Underwater steel structures - Wharves, jetties, sheet pile walls and piers. Usually rod type anodes distributed
• Underwater steel structures - Wharves, jetties, sheet pile walls and piers. Usually rod type anodes distributed
throughout the structure to be protected to give a
throughout the structure to be protected to give a good overall protective current distribution. Anodes should begood overall protective current distribution. Anodes should be
installed in areas not liable to cause Anode damage i.e. out of the way of berthing vessels, mooring ropes, chains etc.
installed in areas not liable to cause Anode damage i.e. out of the way of berthing vessels, mooring ropes, chains etc.
• Exterior protection of ships hulls - anodes in the shape of plates, discs or strips. Housed in chlorine resistant plastic as
• Exterior protection of ships hulls - anodes in the shape of plates, discs or strips. Housed in chlorine resistant plastic as
the anode operates at high current densities in seawater which produces chlorine.
the anode operates at high current densities in seawater which produces chlorine.
• Water tank internal protection - usually distributed rod anodes are used for this type of installation by suspending from
• Water tank internal protection - usually distributed rod anodes are used for this type of installation by suspending from
the tank roof.
the tank roof.
• Internal protection of plant - large diameter water pipelines such as cooling water can be protected using rod or wire
• Internal protection of plant - large diameter water pipelines such as cooling water can be protected using rod or wire
shaped anodes.
shaped anodes.
PLATINISED TITANIUM ANODE DATA
PLATINISED TITANIUM ANODE DATA
Platinised Titanium anodes are manufactured from a commercially pure titanium substrate plated with a very thin coating
Platinised Titanium anodes are manufactured from a commercially pure titanium substrate plated with a very thin coating
of platinum. The titanium serves simply as the anode body and the conductor, the active anode element being the
of platinum. The titanium serves simply as the anode body and the conductor, the active anode element being the
platinum coating.
platinum coating.
The usual thickness of
The usual thickness of the platinum coating is the platinum coating is approximately 2.5 microns, howeverapproximately 2.5 microns, however, this coating , this coating thickness should bethickness should be
increased to 5.0 microns for harsher environments. The base metal is available in a wide variety of standard shapes -
increased to 5.0 microns for harsher environments. The base metal is available in a wide variety of standard shapes -
rods, tubes, mesh, etc - which can be fabricated into non-metallic mounts for attachment to the structure to be
rods, tubes, mesh, etc - which can be fabricated into non-metallic mounts for attachment to the structure to be
cathodically protected.
cathodically protected.
The thickness of the platinum coating and the current density at which the anode is operated determine the useful life
The thickness of the platinum coating and the current density at which the anode is operated determine the useful life
of the anode. The maximum voltage at the anode to electrolyte interface should not exceed 8 Volts in electrolytes
of the anode. The maximum voltage at the anode to electrolyte interface should not exceed 8 Volts in electrolytes
containing chloride as voltages greater than this value could cause local corrosion on any unplatinised portions of
containing chloride as voltages greater than this value could cause local corrosion on any unplatinised portions of
the anode.
REVISION 1
REVISION 1
CURRENT DENSITY AND
CURRENT DENSITY AND CONSUMPTION RATESCONSUMPTION RATES
FEATURES
FEATURES
• Anodes can work at high current densities without decomposition or dissolving.
• Anodes can work at high current densities without decomposition or dissolving.
• Favourable strength to weight ratio.
• Favourable strength to weight ratio.
• Anodes can be smaller and more compact than comparable conventional anodes.
• Anodes can be smaller and more compact than comparable conventional anodes.
• Can be manufactured in a wide variety of shapes and sizes.
• Can be manufactured in a wide variety of shapes and sizes.
• Lightweight support tube installation for Pt Ti anode installation.
• Lightweight support tube installation for Pt Ti anode installation.
ANODE INSTALLATION EXAMPLES
REVISION 1
REVISION 1
APPLICA
APPLICATIONTION
Onshore, Offshore and Marine applications.
Onshore, Offshore and Marine applications.
A wide and varied range of high quality transformer rectifiers are designed and manufactured at our Grantham works to
A wide and varied range of high quality transformer rectifiers are designed and manufactured at our Grantham works to
meet the market requirement for
meet the market requirement for all land and all land and marine structures necessitating an Impressed Current Cathodic Protectionmarine structures necessitating an Impressed Current Cathodic Protection
system or a Marine Growth Anti Fouling system.
system or a Marine Growth Anti Fouling system.
The products have been developed to satisfy the most arduous environmental
The products have been developed to satisfy the most arduous environmental
conditions, giving safe operational reliability with minimal maintenance at
conditions, giving safe operational reliability with minimal maintenance at
competitive price levels.
competitive price levels.
Two main types of transformer rectifiers are available ie: Air Cooled and Oil
Two main types of transformer rectifiers are available ie: Air Cooled and Oil
Cooled, the selection of which may be specification derived or personal
Cooled, the selection of which may be specification derived or personal
choice. The final selection invariably being the environmental conditions and
choice. The final selection invariably being the environmental conditions and
relative to output rating, these will determine the physical size and cost of the
relative to output rating, these will determine the physical size and cost of the
unit. Our engineers are able to assist you with this selection.
unit. Our engineers are able to assist you with this selection.
1 Phase and 3 Phase supplies to 660Volts, 50/60Hz are readily catered for
1 Phase and 3 Phase supplies to 660Volts, 50/60Hz are readily catered for
within our standard
within our standard arrangementsarrangements
Voltages:
Voltages: 6 to 6 to 120V120Volts DC (British olts DC (British Standards state 50Volts DC output max)Standards state 50Volts DC output max)
Currents:
Currents: 5 to 800Amps (Multiples of transformer rectifiers should be5 to 800Amps (Multiples of transformer rectifiers should be
considered for greater than 12kWatt)
considered for greater than 12kWatt)
Input Power Supply
Input Power Supply
Output Rating @ Output Rating @ Ambient Temperatures - Ambient Temperatures - 10 to 55˚C 10 to 55˚C