Engine heat exchangers have a common problem of corrosion due to the difference in metal between casing and tube stack. Employing zinc pencil anodes reduces the corrosion. Pencil anodes are designed in various sizes to protect a certain distance and surface area. These can be replaced by removing an external plug.
Types of Anodes
Zinc Galvion Anodes
Engine heat exchangers have a common problem of corrosion due to the difference in metal between casing and tube stack. Employing galvion zinc pencil anodes reduces the corrosion on the casing prolonging the life of both casing and tube stack whilst in seawater. Zinc is the only material that has an official specification, the American MIL-A-18001 K spec. Zinc is a well-proven anode material and its capacity is virtually unaffected by the operating current density, although the driving voltage diminishes with increasing temperature therefore it has limited application. If zinc is not to this specification i.e. commercial purity zinc, it will have a limited use as an anode material because of excessive polarisation due to iron present as an impurity. MCPS Limited offer engine anodes to suit Volvo-Penta, BMW, Bukh, Johnson, OMC, Evinrude, Mercruiser-Mercury, Yanmar, Yamaha, and many more engines.
Galvion Zinc Pencil Anodes
MGA 625 – 0.625″ x 0.75″
MGA 825 – 0.825″ x 0.75″
MGA 1050 – 1050″ x 0.75″
Zinc Pencil Anodes
Engine heat exchangers have a common problem of corrosion due to the difference in metal between casing and tube stack. Employing zinc pencil anodes reduces the corrosion on the casing prolonging the life of both casing and tube stack whilst in seawater. Zinc is the only material that has an official specification, the American MIL-A-18001 K spec. Zinc is a well-proven anode material and its capacity is virtually unaffected by the operating current density, although the driving voltage diminishes with increasing temperature therefore it has limited application. If zinc is not to this specification i.e. commercial purity zinc, it will have a limited use as an anode material because of excessive polarisation due to iron present as an impurity. MCPS Limited offer engine anodes to suit Volvo-Penta, BMW, Bukh, Johnson, OMC, Evinrude, Mercruiser-Mercury, Yanmar, Yamaha, and many more engines.
375
375/2″ – (3/8″ x 2″) 3/8″ Thread
375/3″ – (3/8″ x 3″) 3/8″ Thread
375/4″ – (3/8″ x 4″) 3/8″ Thread
500
500/2″ – (1/2″ x 2″) 3/8″ Thread
500/4″ – (1/2″ x 4″) 3/8″ Thread
500/6″ – (1/2″ x 6″) 3/8″ Thread
625
625/2″ – (5/8″ x 2″) 3/8″ Thread
625/3″ – (5/8″ x 3″) 3/8″ Thread
625/4″ – (5/8″ x 4″) 3/8″ Thread
625/6″ – (5/8″ x 6″) 3/8″ Thread
750
750/2″ – (3/4″ x 2″) 5/8″ Thread
750/3″ – (3/4″ x 3″) 5/8″ Thread
750/4″ – (3/4″ x 4″) 5/8″ Thread
750/6″ – (3/4″ x 6″) 5/8″ Thread
1050
1050/2″ – (1.05″ x 2″) 3/4″ Thread
1050/3″ – (1.05″ x 3″) 3/4″ Thread
1050/4″ – (1.05″ x 4″) 3/4″ Thread
1050/6″ – (1.05″ x 6″) 3/4″ Thread
Zinc Bar Anodes
Commonly used for the manufacturing of pencil/engine anodes. Engine heat exchangers have a common problem of corrosion due to the difference in metal between casing and tube stack. Employing zinc pencil anodes reduces the corrosion on the casing prolonging the life of both casing and tube stack whilst in seawater. Zinc is the only material that has an official specification, the American MIL-A-18001 K spec. Zinc is a well-proven anode material and its capacity is virtually unaffected by the operating current density, although the driving voltage diminishes with increasing temperature therefore it has limited application. If zinc is not to this specification i.e. commercial purity zinc, it will have a limited use as an anode material because of excessive polarisation due to iron present as an impurity. MCPS Limited offer engine anodes to suit Volvo-Penta, BMW, Bukh, Johnson, OMC, Evinrude, Mercruiser-Mercury, Yanmar, Yamaha, and many more engines.
Zinc Bar Anode (R12)
12mm x 500mm
Zinc Bar Anode (R16)
16mm x 500mm
Zinc Bar Anode (R20)
20mm x 500mm
Zinc Bar Anode (R25)
25mm x 500mm
Zinc Bar Anode (R30)
30mm x 500mm
Zinc Bar Anode (R40)
40mm x 500mm
Zinc Bar Anode (R50)
50mm x 500mm
Zinc Bar Anode (R60)
60mm x 500mm
Zinc Bar Anode (R70)
70mm x 500mm
Zinc Bar Anode (R80)
80mm x 500mm
Zinc Bar Anode (R90)
90mm x 500mm
Zinc Bar Anode (R100)
100mm x 500mm
Zinc Bar Anode (R125)
125mm x 500mm
Zinc Bar Anode (R150)
150mm x 500mm
Soft Iron Bar Anodes
Commonly used for the manufacturing of pencil/engine anodes. Engine heat exchangers have a common problem of corrosion due to the difference in metal between casing and tube stack. Where the casing is very well coated or of non-ferrous material, soft iron anodes may be fitted to provide cathodic protection of the tube stack and tube ends.
Soft Iron Bar Anode (MSI 15)
15mm x 500mm
Soft Iron Bar Anode (MSI 20)
20mm x 500mm
Soft Iron Bar Anode (MSI 25)
25mm x 500mm
Soft Iron Bar Anode (MSI 30)
30mm x 500mm
Soft Iron Bar Anode (MSI 40)
40mm x 500mm
Soft Iron Bar Anode (MSI 50)
50mm x 500mm
Soft Iron Bar Anode (MSI 100)
100mm x 500mm
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