What is the Difference Between Brass Fittings and Copper Fittings?

author: Coco chen

2026-01-28

Brass Fittings

Composition: Copper-zinc alloy (typically 60% Cu, 40% Zn)
Color: Golden yellow
Advantages:

Excellent corrosion & bacteria resistance — safe for drinking water and natural gas

High mechanical strength — supports threading and press-fit

Best value — #1 choice for global plumbing systems

Applications: Residential water lines, compressed air, marine pipelines

Copper Fittings

Composition: Pure copper (T2 / C11000 grade)
Color: Reddish purple
Advantages:

Top thermal conductivity (401 W/m·K) — essential for AC & refrigeration

No zinc leaching — meets NSF/ANSI 61 for potable water & medical oxygen

Annealable & weldable — easy to bend and braze

Applications: HVAC refrigerant lines, medical gas systems, solar water heaters

What Is a Water Pressure Regulator Valve?

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A PRV is your “pipe pressure bodyguard” — auto-drops city high pressure (130+ psi) to safe 50–80 psi, preventing bursts, leaks, appliance damage, and water waste. One line: High in, safe out — one valve protects everything. Best for: Homes, RVs, apartments, commercial.

What Is a Water Pressure Regulator Valve?