construction machinery,concrete pump 1.S-tube valve adopts the most advanced technique with large hopper capacity and high absorbtion efficiency. S-tube with big diameter ,smooth passage and low resistance. 2. S-tube, glasses plate, cutting rings and other key components adopts special structure which is made from special materials. S-tube has the following merits; high abrasive resistance,convenient change and long life-span. 3. Main oil pump, hydraulic control valve, sealing parts and other key components for pump are made in Chinese and foreign joint veture. 4.technical parameter a. theories concrete conveying volume; low pressure---80m3/h high pressure--40m3/h b. theories concrete conveying pressure: high pressure--12mpa low pressure---7mpa c. main pump: optional( foreign or chinese foreign joint) d. conveying bore x stroke: diameter 200x 1600mm f. power: 90kw g. capacity of hydraulic oil tank: 650L h. loading height: 1400mm i. volume of hopper; 0.8m3 j. overall dimension: 6000L(mm)x 2000W(mm) x 2100H(mm) k. total weight: 6500kg l. concrete falling angle; 100-230mm m. max theories conveying distance(125mm diameter) horizon 800mm vertical :165mm NOTE;THE RIGHTSOF THE ABOVE ONLY CAN BE EXPLAINED BY FOYU.