Lower Valve Rod Guide for Mud Pump Product Description Valve rod guide consists of upper parts and lower parts. Guider (lower) is installed in the inner chamber of the hydraulic cylinder ,for centering and positioning the suction valve body assembly. The guider consists of the guide way and the inner sleeve embedded in the guide way.The material of the guide way is ZG35CrMo, and the inner sleeve is treated by 20CrMnTi carburization and quenching. Brand Model Emsco F-350 F-500 F-650 F-800 F-1000 FA-1300 FB-1300 FA-1600 FB-1600 Gardener Denver PZ-7 PZ-8 PZ-9 PZ-10 PZ-11 National 7-P-50 8-P-80 9-P-100 10-P-130 12-P-160 IDECO T-800 T-1000 T-1300 T-1600 Oil Well A-350 A-560 A-650 A-850 A-1100 A-1400 A-1700 China 3NB-350 3NB-500 3NB-800 3NB-1000 3NB-1300 3NB-1600 3NB-2200