ODLEWNIA brass-plated (galvanized) plug without rim 3/4" (DN20) model 47

ODLEWNIA brass-plated (galvanized) plug without rim 3/4" (DN20) model 47 is a rimless threaded end cap designed to close open pipe ends in water, heating and utility installations. The part features a lightweight metal body with a galvanized surface treatment that enhances corrosion resistance for general plumbing use. It is made to fit standard 3/4" (DN20) female threaded connections and provides a compact, low-profile closure where an external rim or flange is not wanted.

Advantages

This rimless plug offers a simple, space-saving solution for sealing threaded pipe ends. The galvanized finish improves resistance to oxidation and general corrosion in typical domestic and light-commercial environments. Its compact profile allows installation in tight spaces and behind fixtures where a rimmed cap would interfere. The metal construction provides mechanical durability compared with plastic alternatives, while the standardized 3/4" (DN20) thread ensures compatibility with common plumbing fittings.

Suitable for

• Sealing open 3/4" (DN20) threaded pipe ends in water distribution systems
• Temporary or permanent closure of heating circuit branches and utility lines
• Installation where a low-profile, rimless closure is required
• General plumbing tasks in domestic and light-commercial settings

When it may not be suitable

This plug is not intended for use in aggressive chemical environments or applications requiring certified high-pressure fittings unless compatibility and pressure ratings are verified. Galvanized surface treatment provides improved corrosion resistance for common environments but may not be appropriate for long-term exposure to highly acidic or saline conditions. If a sealed connection with a visible rim or flange is required for aesthetic or mounting reasons, a rimmed cap would be more appropriate.

Key specifications

• Connection size: 3/4" (DN20) threaded
• Design: rimless (without external flange)
• Material: lightweight metal construction with brass-plated / galvanized finish
• Application: water, heating and general utility pipe sealing
• Profile: low-profile compact end cap for confined spaces

How to use

Ensure the mating female thread is clean and free of debris or old sealing material. Apply an appropriate thread sealant or PTFE tape to the male threads if a pressure-tight seal is required, following manufacturer recommendations for the sealant. Screw the plug into the female threaded fitting by hand to start, then tighten with an appropriate wrench until snug; avoid excessive torque that could damage threads or deform the rimless profile. After installation, verify the seal under working pressure and inspect periodically for corrosion or leakage.

What to consider before purchase

• Confirm compatibility with 3/4" (DN20) female threaded fittings in your system
• Check suitability of galvanized/brass-plated finish for the installation environment
• Decide whether a rimless profile meets aesthetic and mounting requirements
• Verify that the mechanical strength and corrosion resistance match intended service conditions

Usage recommendations

For routine plumbing and heating installations use appropriate thread sealant or PTFE tape and hand-start the threads before final tightening with a wrench. Periodically inspect installed plugs for signs of corrosion or loosening, especially in moist or aggressive environments; replace if protective coating is compromised. For high-pressure, corrosive, or safety-critical systems, consult a specialist and select fittings with certified pressure and material specifications.