Reciprocating pump piston rod maintenance standards are as follows: 1, the piston rod curvature of not more than 0.1mm / m; 2, cylindrical deviation of not more than 0.1 ~ 0.3mm; 3, piston rod hole centerline and shoulder bearing surface of the vertical deviation Not exceeding 0.02 mm in length of 100 mm; deviation of perpendicularity of centerline of piston pin hole of cylinder piston from center line of piston, not more than 0.02 mm within 100 mm length; 4. Maximum allowable value of piston rod surface roughness Ra 0.40μm; 5, the piston rod surface shall not have scratches, scratches and cracks and other defects; 6, the piston rod wear no greater than 0.3mm.
Plastic machine parts,Ceramic Band Heater,Screw Barrel Heater,Air Blower Fan
Zhejiang Zhongsu Screw Co., Ltd. , https://www.zhongsuscrew.com