Which pipes can be utilized in an NH3 system?

The correct choice involves pipes that are recognized for their ability to handle ammonia (NH3) systems effectively. The materials listed include A53 Grade B ERW (Electric Resistance Welded), A106 Grade B seamless, and A53 Grade F, all of which are suitable for high-pressure applications commonly required in NH3 systems.

A53 Grade B is known for its strength and is widely used in construction and industrial applications, including piping systems for gases. A106 Grade B is specifically designed for high-temperature service and is seamless, making it ideal for transporting ammonia due to its ability to withstand high pressures and mitigate potential leaks. The A53 Grade F is another grade designed for higher tensile strength and is compliant with high-pressure standards.

Material compatibility is crucial in ammonia systems to prevent corrosion and ensure safety, which is why these specific grades are chosen. They are all capable of maintaining integrity while transporting ammonia under varied operating temperatures and pressures.