Tecnoseal Galvion Elements Zinc Pencil Anodes with Galvanised Steel Core

Tecnoseal Galvion Elements Zinc Pencil Anodes with Galvanised Steel Core

Tecnoseal Galvion Elements zinc pencil anodes are sacrificial corrosion protection components featuring cylindrical zinc bodies with integrated galvanised steel cores. The steel insert provides a threaded mounting connection, while the surrounding zinc acts as the sacrificial element for compatible marine applications.

The range includes five models: Tecnoseal 20002, 20000, 20004, 20005 and 20006. Available body diameters are 12.7 mm (0.50 in), 15.7 mm (0.62 in), 20.7 mm (0.81 in) and 26.7 mm (1.05 in). Every model has a 19 mm (0.75 in) body length and an 8 mm (0.31 in) threaded extension.

The 20002, 20000, 20004 and 20006 versions feature 12-28 UNF threaded connections. The 20005 model has an M6 connection instead, making it a separate mounting option despite having the same 20.7 mm body diameter as the 20004.

Individual weights range from 0.02 kg (20 g) to 0.07 kg (70 g). Each model is supplied as a zinc anode with an integrated galvanised steel core.

Key Features

• Manufacturer: Tecnoseal
• Product Series: Galvion Elements
• Product Type: Sacrificial pencil anode with insert
• Anode Material: Zinc
• Insert Material: Galvanised steel
• Available Models: 20002, 20000, 20004, 20005 and 20006
• Body Diameters: 12.7, 15.7, 20.7 and 26.7 mm
• Body Length (l): 19 mm
• Threaded Extension Length (l1): 8 mm
• Thread Sizes: 12-28 UNF and M6
• Thread Parameters: b and m, as indicated in the manufacturer drawing
• Weight Range: 0.02–0.07 kg

Available Models and Technical Specifications

Individual Model Specifications

Tecnoseal 20002 – Galvion Elements Zinc Anode Ø12.7 x 19 mm

The Tecnoseal 20002 is the smallest diameter anode in this series. Its cylindrical zinc body measures 12.7 mm (0.50 in) in diameter and 19 mm (0.75 in) in length. The integrated galvanised steel core features a 12-28 UNF connection with an 8 mm threaded extension.

It weighs 0.02 kg (20 g) and corresponds to original part number G500.

• Product Code: 20002
• Original Part Number: G500
• Diameter: 12.7 mm / 0.50 in
• Body Length: 19 mm / 0.75 in
• Extension Length: 8 mm / 0.31 in
• Threads (b / m): 12-28 UNF
• Weight: 0.02 kg / 0.04 lbs
• EAN: 8052744983998

Tecnoseal 20000 – Galvion Elements Zinc Anode Ø15.7 x 19 mm

The Tecnoseal 20000 features a 15.7 mm (0.62 in) diameter zinc body with a 19 mm (0.75 in) length. It incorporates a galvanised steel core with a 12-28 UNF threaded connection and an 8 mm (0.31 in) extension.

The anode weighs 0.03 kg (30 g) and corresponds to original part number G625.

• Product Code: 20000
• Original Part Number: G625
• Diameter: 15.7 mm / 0.62 in
• Body Length: 19 mm / 0.75 in
• Extension Length: 8 mm / 0.31 in
• Threads (b / m): 12-28 UNF
• Weight: 0.03 kg / 0.07 lbs
• EAN: 8052744981451

Tecnoseal 20004 – Galvion Elements Zinc Anode Ø20.7 x 19 mm, 12-28 UNF

The Tecnoseal 20004 has a 20.7 mm (0.81 in) diameter cylindrical zinc body measuring 19 mm (0.75 in) in length. Its galvanised steel insert features a 12-28 UNF threaded connection with an 8 mm extension.

This model weighs 0.04 kg (40 g) and corresponds to original part number G825.

• Product Code: 20004
• Original Part Number: G825
• Diameter: 20.7 mm / 0.81 in
• Body Length: 19 mm / 0.75 in
• Extension Length: 8 mm / 0.31 in
• Threads (b / m): 12-28 UNF
• Weight: 0.04 kg / 0.09 lbs
• EAN: 8058774839212

Tecnoseal 20005 – Galvion Elements Zinc Anode Ø20.7 x 19 mm, M6

The Tecnoseal 20005 has the same 20.7 mm (0.81 in) body diameter and 19 mm (0.75 in) length as the 20004 but features an M6 threaded steel insert instead of a 12-28 UNF connection.

Its threaded extension measures 8 mm (0.31 in), and the complete component weighs 0.04 kg (40 g). The original part reference is G825M6.

• Product Code: 20005
• Original Part Number: G825M6
• Diameter: 20.7 mm / 0.81 in
• Body Length: 19 mm / 0.75 in
• Extension Length: 8 mm / 0.31 in
• Threads (b / m): M6
• Weight: 0.04 kg / 0.09 lbs
• EAN: 8058774839229

Tecnoseal 20006 – Galvion Elements Zinc Anode Ø26.7 x 19 mm

The Tecnoseal 20006 is the largest diameter version in this range. It features a 26.7 mm (1.05 in) diameter zinc body with a 19 mm (0.75 in) length and a galvanised steel core using a 12-28 UNF threaded connection.

The 8 mm (0.31 in) threaded extension is the same length as on the other models, while the larger zinc body brings the individual weight to 0.07 kg (70 g). It corresponds to original part number G1050.

• Product Code: 20006
• Original Part Number: G1050
• Diameter: 26.7 mm / 1.05 in
• Body Length: 19 mm / 0.75 in
• Extension Length: 8 mm / 0.31 in
• Threads (b / m): 12-28 UNF
• Weight: 0.07 kg / 0.15 lbs
• EAN: 8058774839236

Original Part Number Cross-References

Galvanised Steel Core and Threaded Connection

Each Galvion Elements anode features a galvanised steel core integrated into the cylindrical zinc body. The core incorporates threaded connections identified as b and m in the Tecnoseal technical specifications.

The 20002, 20000, 20004 and 20006 use 12-28 UNF connections, while the 20005 uses M6. All five models have an 8 mm threaded extension.

The 12-28 UNF and M6 connections are different thread standards and must not be treated as interchangeable solely because some models share the same zinc body dimensions.

Model Selection

Select the required Galvion Elements zinc pencil anode by matching the original part number, body diameter and threaded connection.

The 20002, 20000 and 20006 provide different diameters with the same 12-28 UNF thread. The 20004 and 20005 both have 20.7 mm diameter bodies but differ in their mounting threads: 12-28 UNF and M6 respectively.

All models share a 19 mm body length and an 8 mm threaded extension. Verify the existing fitting and available installation clearance before ordering.

Supply: One zinc sacrificial pencil anode with integrated galvanised steel core.