NM type drilling pump high-pressure piston is manufactured using advanced technology and unique rubber formula, reasonable structural design and scientific processing technology.On-site use has achieved the goal of drilling a deep well without changing the piston.Its main technical performance is at the domestic leading level.Main uses: It is used for grouting and circulation of drilling mud pumps, and it is also suitable for other equipment with similar functions, which is used to press mud, water and other media.Applicable conditions: pressure ≤22 MPa, impulse ≤120 times/min, PH value 5-14, temperature ≤100℃.Specifications and models: φ70-φ200 full range of piston assemblies.