Reasonable selection of gear oil pump pipeline is very important, including: diameter, pipe diameter, in the same flow rate. The liquid flow speed is small, the resistance loss is small, but the price is high, the diameter of the pipeline is small, it will lead to a sharp increase in the resistance loss, so that the selected gear oil pump pressure increases, the power of the belt increases, the cost and operating expenses are increased. Therefore, it should be considered comprehensively from the Angle of technology and economy. The maximum pressure that the discharge pipe and its joint can bear should be considered.
The pipe layout should be arranged as straight as possible, minimize the accessories in the pipe and minimize the length of the pipe. When it is necessary to turn, the bending radius of the elbow should be 3-5 times the diameter of the pipe, and the Angle should be greater than 90℃ as far as possible. The discharge side of the gear pump must be equipped with a valve (overflow valve) and check valve. The valve is used to adjust the working point of the pump, and the check valve can prevent the gear pump from reversing when the liquid flows back.(When the liquid flows back, there will be huge reverse pressure, so that the pump is damaged) such as the operating temperature of the liquid. Suction side pressure (absolute). Discharge side container pressure. Altitude Ambient temperature Is the operation intermittent or continuous? Is the position of the gear pump fixed or removable?
