Air dome

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A cylindrical or bell-shaped container closed at the upper end and attached in an upright position above and to the discharge of a piston-type pump. Air trapped inside the closed cylinder acts as a compressible medium, whose expansion and contraction tends to reduce the severity of the pulsations imparted to the liquid discharged by each stroke of a pump piston. Syn: bonnet; pressure dome. CF: dome Long
Source: Dictionary of Mining, Mineral, and Related Terms

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