Brass reducing coupling RED 5/4 x 1" R023301031

Brass reducing coupling RED 5/4 x 1" R023301031 is a threaded adapter designed to connect pipes or fittings with different nominal diameters. Manufactured from brass, the coupling provides corrosion resistance and mechanical durability required in water supply, heating and general utility installations. The part adapts a larger 5/4" threaded connection to a smaller 1" thread, enabling secure transitions between sizes while maintaining flow continuity.

Advantages

The brass construction offers good resistance to corrosion, mechanical wear and thermal cycling typical for plumbing and HVAC systems. Threaded connections ensure a leak-tight joint when installed with appropriate sealing materials. The reducing coupling is compact and easy to integrate into existing pipework, saving time during modifications or repairs. Its simple design reduces the number of joints and potential failure points compared with using multiple fittings.

Suitable for

• Adapting a 5/4" threaded pipe or fitting to a 1" threaded connection
• Domestic and commercial water supply systems
• Heating circuits, radiators and boiler connections
• Utility installations where thread size conversion is required

Key specifications

• Material: brass
• Thread sizes: larger side 5/4" — smaller side 1"
• Connection type: threaded (male/female as per application)
• Typical applications: water, heating and utility installations
• Corrosion resistance suitable for potable and non-potable water systems depending on system requirements

How to use

Ensure that both mating threads are clean and free of debris before assembly. Apply an appropriate thread sealant or tape compatible with the system medium and operating temperature to the male thread. Hand-start the coupling onto the mating thread to avoid cross-threading, then tighten with an appropriate wrench until secure; avoid excessive torque that could damage threads. After installation, pressurize the system and check for leaks at the joint. If necessary, tighten slightly or disassemble and reapply sealant.

Usage recommendations

Use thread sealant products that are approved for potable water when installing in drinking water systems. Select the correct wrench size and avoid over-tightening to preserve thread integrity. For systems operating at elevated temperatures or aggressive media, verify material compatibility and system ratings before installation.