知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。An electric diaphragm pump normally consists of a diaphragm, valves, a pumping chamber, and an electric motor. The diaphragm is a versatile membrane that moves backwards and forwards to make suction and discharge cycles. Valves Manage the circulatio