Double-acting pump

Double-acting pump One stroke, two discharge oil, high pump efficiency.Low price, stable performance, high economicbenefit.Suitable for low concentration and low viscosityof oil well conditions. Product description: The double-acting pump can do that a stroke can complete two oil discharge process, its unit volume of produced liquid is greater than the conventional pump the same specification. But when the plunger downward, sucker rod string down resistance is bigger, it