Hydraulic equipment quality control should begin with defined acceptance criteria before purchasing or manufacturing. For hydraulic pumps, valves, cylinders, manifolds and power units, appearance is not enough. Product code, pressure and flow, mounting dimensions, material records, cleanliness, leak tightness and function must match the order.
Machined components require inspection of critical dimensions and internal passages. Welded reservoirs and skids require weld, distortion, leakage and coating checks. A useful report identifies the characteristic, method or instrument and the requirement used for acceptance.