Altop industries offers a wide range of pressure calibration products and solutions. These are developed keeping in mind modern industry requirements. As part of that, the company offers low pressure vacuum hand pumps. These are ideally suited for calibration of low pressure differential transmitters. The working principle of these pumps is almost similar to bicycle pump. The fine adjustment piston ensures easy and accurate pressure setting. It consists of a vent valve to control the rate of change of pressure. It is provided with a special valve, which can change the cylinder hand pump into a vacuum pump and make it multipurpose.
