... vertical version (EZL type) according to mode of construction and the discharge diameters of horizontal pumps vary from 300mm to 200mm 150mm, ... 100mm, 80mm, 65mm, 50mm, 40mm, etc.And the discharge diameters of vertical ... -chrome alloy cast iron with high wear-resistance.They are of energy- saving, high efficiency, little vibration, low noise, ...