The safety and quality requirements must be considered when designing round or square cross section.
Two, the air bag must have sufficient capacity to meet the gas injection volume. It is recommended that the pressure drop in the air bag after pulse injection is not more than 30% of the original storage pressure. The air bag in the intake pipe of large diameter day, meet the air speed. A plurality of intake air input lines can be designed for large capacity air bag. For the air volume air bag, a plurality of air bag can be connected into a gas storage loop by a diameter 76mm pipe.