- 120
- 171
- 4.80 kg
- 12.92 kg
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Tecnoseal 00438 / 00439 Riva Opera & Dolce Vita Zinc Propeller Anodes Ø120–171 mm
The Tecnoseal 00438 and 00439 are zinc sacrificial propeller anodes for compatible Riva Opera, Riva Dolce Vita and Riva Opera 80 yacht propeller assemblies. They provide galvanic corrosion protection for electrically connected underwater metallic components by acting as replaceable sacrificial elements.
Both versions feature a cylindrical external body with a recessed internal mounting cavity and a central fastening opening. The smaller 00438 has an outside diameter of 120 mm, an overall height of 90 mm and a weight of 4.80 kg. The larger 00439 has an outside diameter of 171 mm, an overall height of 100 mm and a weight of 12.92 kg. Their internal mounting dimensions differ, allowing selection according to the corresponding propeller assembly.
Technical Specifications
Parameter 00438 00439 Manufacturer Tecnoseal Product Type Sacrificial propeller anode Material Zinc Application Series Riva Opera / Dolce Vita / Opera 80 Body Design Cylindrical with recessed mounting cavity Outside Diameter (Ø) 120 mm (4.72 in) 171 mm (6.73 in) Diameter Ø1 13 mm (0.51 in) 13 mm (0.51 in) Diameter Ø2 80 mm (3.15 in) 92 mm (3.62 in) Diameter Ø3 25 mm (0.98 in) 28 mm (1.10 in) Diameter Ø4 10.50 mm (0.41 in) 12 mm (0.47 in) Overall Height (h) 90 mm (3.54 in) 100 mm (3.94 in) Internal Height (h1) 65 mm (2.56 in) 65 mm (2.56 in) Dimension i 99 mm (3.90 in) 110 mm (4.33 in) Weight 4.80 kg (10.58 lbs) 12.92 kg (28.48 lbs) EAN 8033837068228 8033837068235
Available Variants
- Tecnoseal 00438 – Ø120 mm: Zinc propeller anode with a height of 90 mm, an 80 mm internal recess diameter (Ø2), a 99 mm mounting dimension (i) and a weight of 4.80 kg.
- Tecnoseal 00439 – Ø171 mm: Zinc propeller anode with a height of 100 mm, a 92 mm internal recess diameter (Ø2), a 110 mm mounting dimension (i) and a weight of 12.92 kg.
Design and Mounting Configuration
The Tecnoseal Riva propeller anodes incorporate recessed internal mounting profiles designed for the corresponding propeller assemblies. Both versions have a 13 mm Ø1 dimension and an internal height (h1) of 65 mm, while their remaining mounting diameters and overall dimensions differ.
The 00438 features Ø2 = 80 mm, Ø3 = 25 mm and Ø4 = 10.50 mm. The 00439 features Ø2 = 92 mm, Ø3 = 28 mm and Ø4 = 12 mm. These differences must be considered when replacing an existing anode.
Before ordering, compare the outside diameter, overall height, mounting recess and fastening dimensions with the original propeller anode. The two versions should not be treated as interchangeable without checking the complete mounting geometry.
Corrosion Protection and Maintenance
Manufactured from zinc, these sacrificial anodes are designed to corrode preferentially, helping protect connected underwater metallic propeller components against galvanic corrosion. Inspect the anode periodically for material consumption and replace it when significantly depleted.
During installation, ensure suitable electrical contact between the anode and the metallic component requiring protection.
Scope of Supply
One Tecnoseal Riva zinc propeller anode in the selected size.
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