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Flat Seal Union GW-GZ Galvanized 2 1/2" (gasket included) Duro

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147.30

196.41

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119.76 NETTO • po rabacie

159.68 NETTO • przed rabatem

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Lowest price within 30 days before the current promotion: 147.30 0%

Lowest price within the last 30 days

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Flat Seal Union GW-GZ 2 1/2" Galvanized Duro is a fitting for water and heating systems, allowing durable yet easily removable connections of pipes or fittings. Galvanized coating protects against corrosion, and the included gasket ensures leak-tightness. Choose the correct size and thread type for your installation.

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Flat Seal Union GW-GZ 2 1/2" Galvanized Duro – Application and Features

Flat Seal Union GW-GZ 2 1/2" Galvanized by Duro is designed for secure, removable connections in plumbing, heating, and industrial systems. The flat seal and supplied gasket enable repeated disassembly and reassembly of pipes or fittings without compromising tightness or damaging threads.

Flat Seal Union GW-GZ 2 1/2 inch Galvanized Duro

Main Characteristics

Connection type: GW-GZ (female thread – male thread)
Size: 2 1/2"
Material: cast iron with galvanized coating
Flat seal: provides a reliable, leak-proof joint
Gasket included – ready for immediate installation
Quick assembly and disassembly – facilitates maintenance
Corrosion resistance due to galvanization

Where to Use Flat Seal Unions

This union is ideal wherever frequent dismantling is needed without sacrificing sealing integrity. It is widely used in domestic and industrial water installations, especially during repairs, upgrades, or when sections of piping need to be replaced. The flat seal and included gasket ensure long-term tightness even after multiple cycles of use.

Both professional plumbers and DIY users value this product for its reliability and fast installation—no extra sealing materials required. It is suitable for connecting pipes, valves, filters, or heating appliances.

Choosing the Right Flat Seal Union

When selecting a union, ensure the correct size (2 1/2") and thread type (GW-GZ) match your system. Confirm that the material and galvanized finish suit the operating environment. Having a gasket included saves time and ensures proper sealing upon installation. Compatibility with other system components is essential.

If you need other sizes or types, explore our Galvanized Cast Iron Unions for more options tailored to your needs.

Technical Data

Brand: Duro
Catalog number: OC-G331D 65
EAN: 5901669424204
Connection type: GW-GZ
Thread size: 2 1/2"
Material: galvanized cast iron
Gasket: included

FAQ – Most Common Questions

Does the Duro 2 1/2" GW-GZ union include a gasket?

Yes, each union comes with a flat gasket for immediate installation.

What applications is this union suitable for?

It is designed for sealed, removable connections in water and heating systems where fast disassembly is needed without damaging pipes.

Is the galvanized union suitable for humid environments?

Yes, the galvanized coating protects the cast iron from corrosion, ensuring long service life.

How do I select the proper union size?

Check the thread size (here: 2 1/2") and connection type (GW-GZ) to ensure compatibility with your installation.

Summary and Related Products

The Flat Seal Union GW-GZ 2 1/2" Galvanized Duro offers durability, easy installation, and leak-proof performance for professional and home plumbing. Looking for more hydraulic fittings or galvanized cast iron parts? Visit our Hydraulic Fittings and Galvanized Cast Iron Fittings sections for a complete range.

Reference OC-G331D 65

Specific References

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Flat Seal Union GW-GZ Galvanized 2 1/2" (gasket included) Duro