What is the standard fill pressure for a Nitrox tank?

The standard fill pressure for a Nitrox tank is typically around 3000 psi. This pressure is commonly used for high-pressure cylinders that are suitable for recreational diving and technical diving applications. When cylinders are filled to this pressure, it allows divers to have a sufficient amount of gas for their dives while maintaining efficiency and safety.

Using a standard fill of 3000 psi also ensures compatibility with many dive systems and compressors, making it easier for divers to find sources to refill their tanks. Additionally, most divers are trained and equipped to handle tanks filled to this pressure, which is critical for both performance during the dive and safety considerations.

Options like 2000 psi, 4000 psi, and 5000 psi are not standard fill pressures for Nitrox tanks in common recreational or technical diving scenarios. A fill pressure of 2000 psi is considered low for most dive profiles, while 4000 psi and 5000 psi exceed the capabilities of standard recreational cylinders and the equipment used for refilling, thus making them impractical for typical use in diving.