CALIBRATION PISTON INSTALLATION FOR VOLUME UNITS AND VOLUMETRIC GAS FLOW RATE AT REAL MEDIUM AT HIGH PRESSURES

摘要

A calibration piston installation for volume units and volumetric flow rate of gas on real medium at high pressures includes a cylinder with piston separator, this is brought into motion with a hydraulic pump, this replaces gas with oil from buffer vessel to cylinder, with filling the buffer vessel with gas. The piston separator is equipped with a rod, fixed at two sides of the piston with possibility of provision of uniform piston stroke and removal of skew. The installation is equipped with devices for connection to mains with possibility of filling with gas at high pressure from mains and provision of absence of contact of gas with oil.