Air vessels are horizontal or vertical cylindrical vessels mounted on supports. Often they are made in the form of the sphere: this form is more reliable and durable, but due to design features and production difficulties spherical air vessels are more expensive.

The choice of horizontal or vertical orientation depends on the operating conditions and the availability of production space, since the performance does not depend on the location method: vertical vessels are more ergonomic, therefore the most commonly used.

When pricing calculation of air vessels particular attention is given to safety valves, which protect against destruction in case of a sudden pressure intensification. Technological equipment is installed in the various fittings and nipples, which guarantees the safe operation of the vessels: pressure gauges, valves, a three-way valve, etc.

Cylindrical air vessels have elliptical heads. In case of a vertical configuration, there is a branch pipe in the head, through which high-pressure gas enters the vessel. In the lower part of the body there is a hatch through which the formed mud and oil sludge are being removed. In addition, the second large diameter hatch is provided for maintenance and inspection.