ZYA 9000 piston type water hammer absorption device is a device used to eliminate the water hammer stamping wave caused by multiple causes in the pipeline and protect the pipeline and equipment from damage. Applicable to industrial and mining enterprises, high-rise buildings, power plants and other kinds of water supply and drainage system, the use of the piston of the air in the chamber, the buffer and sudden shock wave relief efforts, to avoid the huge water hammer force caused by the damage of equipment. The device is simple in structure. Excellent selection. Long service life.