Liquid Carbon Dioxide Cylinder Selection

Our equipment must use liquid carbon dioxide (Liquid CO₂) for dry ice production and ice cup cooling.Ensure the cylinder valve directly matches the equipment's original high-pressure hose, with no additional adapter required.

Cylinder requirements are as follows:

• Internal siphon tube in the cylinder

 • QF-2A valve

• Outlet thread G5/8

• Notched CO₂ connector

 • Food-grade liquid carbon dioxide cylinder。

RecommendedAluminum alloy cylinder,Compared with traditional steel cylinders, aluminum alloy cylinders are lighter, easier to carry and install, highly corrosion-resistant, and have a more premium and attractive appearance.

The critical temperature of carbon dioxide is 31.1°C, and the critical pressure is 7.38 MPa (about 72.8 atmospheres). When the cylinder temperature is below 31.1°C, liquid in the lower layer and gas in the upper layer coexist inside the cylinder; once it exceeds 31.1°C, the interface between liquid and gas disappears, carbon dioxide enters a supercritical state, and there is no longer a “liquid level” inside the cylinder.。

Liquid carbon dioxide is a high-pressure liquefied gas, and its internal pressure rises as the temperature increases.

Therefore, place the cylinder in a cool, well-ventilated area, and keep the operating ambient temperature from approaching or exceeding 31.1°C。