Introduction of concrete pressure bleeding instrument

SY-2-type concrete pressure bleeding instrument is a test of pumping concrete under the pressure of a certain amount of bleeding, and then calculate the ratio of bleeding equipment, SY-2 type concrete pressure bleeding apparatus, with accurate measurement, Easy operation, small size, light weight, easy demoulding, etc., its technical indicators in line with national JC473-92 standards. Pressure bleeding instrument mainly consists of hydraulic jacks, pressure gauges and cover the piston, the cartridge, base and other components. The use of pressure bleeding instrument 1, open the cover, will need to test the concrete mixture into the sample tube, with a pounding stick from the periphery to the center plugging ram 25 times, plus the piston, and the piston vent screw Unscrew, press the piston to just contact the concrete surface, tighten the vent screw, cover the cap tighten the nut, then connect the manual pump and jack quick connector. 2, then clockwise to tighten the manual jump back to the oil valve, pull the hand pump handle, the oil pressure to 30mpa (pressure gauge value), then the pressure of the piston on the concrete mixture is 3.0mpa. 3, when the oil pressure reaches 30Mpa, immediately open the bleeding valve, and bleeding into the 1000ml measuring cylinder, and start timing, and 10 seconds and 140 seconds, respectively, read the amount of bleeding V1 and V140, as the calculation of bleeding rate The basic data. 4. After obtaining the data, loosen the oil return valve counterclockwise to release the pressure to the system, remove the upper cover and the sample cartridge, place the sample cartridge on the ejector (optional accessory), cover the upper cover, Tighten the two nuts. Tighten the oil return valve in a clockwise direction to pressurize the jack until the concrete and the piston automatically fall off, remove the cover and the sample tube, unscrew the return valve, and manually press back the jack piston to finish the test once.