Brass Male Female Threaded Union With PPR End

    1. Non-destructive Maintenance: Pipes do not need to be cut for quick disassembly, replacement, inspection and repair of valves, water meters, faucets and other equipment, greatly reducing maintenance costs and construction time. It is especially suitable for water-intensive areas such as kitchens and bathrooms.

    2. Thermal Expansion and Contraction Compensation: DUNYUN brass ppr union structure allows minor displacement of pipes, alleviates the stress caused by differences in thermal expansion coefficients between PPR and metal materials, and protects the sealing of joints.

    3. Flexible Installation: Adopting PPR heat fusion ends + brass threaded/union ends at both ends, it enables:

Seamless transitional connection between PPR pipes and metal pipes (steel pipes, copper pipes), valves and sanitary ware.

    1. Dual Corrosion Resistance

PPR end: Acid and alkali resistant, scale-resistant and rust-proof, with no impact on water flow rate during long-term use.

Brass/copper end: Water corrosion resistant, with excellent tolerance to chloride ions in hot water systems-far superior to ordinary steel. Copper ions have a natural antibacterial effect, complying with drinking water hygiene standards (holding EPA antibacterial registration).

     2. High Temperature and Pressure Resistance

Applicable water temperature: 70℃ for long-term use, 95℃ for short-term use; the working pressure can reach 1.6MPa and above, meeting the requirements of cold and hot water supply systems.

Brass inserts reinforce threaded connections, preventing thread slipping and making the fitting suitable for repeated disassembly and long-term use.

    1. Multi-layer Sealing Design: Built-in food-grade silicone rubber/EPDM rubber sealing rings, mated with precision threads and compressed by brass nuts, create a dual leak-proof protection that effectively prevents dripping and leakage.

    2. Heat Fusion + Threaded Dual Connection: Heat fusion connection at the PPR end ensures joint strength higher than that of the pipe itself; threaded connection at the brass end is compatible with standard metal pipe fittings, balancing stability and flexibility.

    3. Long Service Life: High-quality DUNYUN PPR raw materials combined with brass inserts deliver excellent anti-aging and fatigue-resistant performance. Under normal use, it features an extended maintenance cycle.