Analysis of the causes of piston rod overheating

(1) The piston rod and stuffing box are skewed during assembly, causing local mutual friction, which should be adjusted in time;
(2) The clamping spring of the sealing ring is too tight, the friction is large, and it should be adjusted appropriately;
(3) The axial clearance of the sealing ring is too small, and the axial clearance should be adjusted according to the specified requirements;
(4) The oil supply is insufficient, and the oil supply should be appropriately increased;
(5) The piston rod and the sealing ring are not well run-in, and the running-in should be strengthened during the matching and grinding;
(6) Impurities are mixed in the air and oil, which should be cleaned and kept clean.