An air chamber can utilize the compressibility of air to convert the pulsating flow generated by a pump into a flow that is close to continuous. It helps reduce acceleration resistance, overfeed phenomena, and piping vibrations, thereby contributing to the longevity of the diaphragm pump itself. When using a pump with strong pulsations or when the pump discharge exceeds 1 [L/min], an air chamber should be installed. To maximize the effect of the air chamber, install it directly above the pump discharge outlet and regularly replenish the air.

Air Chamber code explanation

Notes) For the material of an air chamber, use SUS (stainless steel) so far as that material is well resistant against your solution.
The resin-made air chamber is unavoidably affected by ultraviolet rays and liquid chemicals after a long time of use.
For safety purposes, please replace it with a new one approximately every three years. In addition, when attaching a resin air chamber, be sure to install the air chamber cover.

Model	Dimensions φ×L(mm)	Volume (L)	Materials / With standing pressure (MPaG)	Connection		Applicable pump mode
				For SUS spec. (Flange JIS 10K)	Others (Female screw)
A 22	2B×200	0.4	PVC/0.5 VT/0.7 SUS/1.0	15A	Rc1/2	3W～12W･2Y･6Y･1～25V
AB 32	3B×200	1				30W～100W･10Y～120Y･50～130V
AB 34	3B×400	2		20A	Rc3/4	100W･4R･1L･2L･200W･350W
AB 44	4B×400	3		25A	Rc1	6R･9R･3L･6L･500W･700W
AB 46	4B×600	4.5		40A	Rc1 1/2	1000W･1500W･14R･16R･D-32R･9L･13L
AB 66	6B×600	10				22R･27R･D-44R･D-54R･17L
AB 86	8B×600	18		50A _or 65A	Rc2 _or Rc2 1/2	34R･D-68R

Dimensions