Our company considering the problem of fine stone concrete conveying during the floor heating construction, and designed and manufacture the small S tube valve type slurry pump - BS series of fine stone concrete pump, which successfully solved this problem. The product also has the following features: 1. Automatically compensate the wear, sealing is good. 2. Using high hard wear-resistant alloy materials, longer service life. 3. The outlet pressure is high, can satisfy the requirement of high building and construction of long distance transmission. 4. Hydraulic system adopt double circuit open system, faster reversing speed, high efficiency. 5. The hydraulic oil cooling adoption of advanced cooling system, do not need to pick up water, easy to use. 6. Has the function of the opposite pump, minimize any blockage 7. The electrical part adopts PLC control, which has the best handling characteristics 8. The electrical box is equipped with wired remote control handle, easy to operation The product use a number of leading technology, and already applied for two countries¡¯ patents, it is the first one fine stone concrete conveying equipment in domestic.