Vavle cover is forged by high quality alloy steel 35CrMoA or 40CrNiMoA, which holding high machinery performance and shock resistance after heat treatment, which has no crack and impurities. We can manufacture it used on almost all types of mud pumps or customize in accordance with your request. Mud Pump Valve Cover The valve cover is installed at the top of the hydraulic cylinder, for fixing and centering the discharge valve. The blank of the valve cover is made of 35CrMo forged piece, with thermal refining 241-285HB. GARDNER DENVER:PZ-7, PZ-8, PZ-9, PZ-10, PZ-11 IDECO:T-500, T-800, T-1000, T-1300, T-1600 NATIONAL:7-P-50, 8-P-80, 9-P-100, 10-P-130, 12-P-160, 14-P-200, 14-P-220, K-700, K-700A, K-500, K-500A OILWELL:A-350PT, A-560PT, A-600PT, A-850PT, A-1100P, A-1400PT, A-1700PT EMSCO:F-500, F-800, F-1000, F1300, F1600, FB-1300, FB-1600, D-375, D-700, D225 LANSHI:3NB-1300C, 3NB-1000, 3NB-1000C, 3NB-800 QINGZHOU:SL3NB-1300A, QZ1000, QZ-500, QZ-350, QZ800, SL3NB-1600 RUSSIAN:8T-650, UNBT-600, UNBT-950, UNBT-1180L, UNBT-950A, UBT-400, BT-600, UB-590, UNB-600, 8T310, 8T650-01