PRESSURE REGULATOR-GAS FLOW LIMITER Russian patent published in 2003 - IPC

FIELD: means of gas distribution, applicable for control, stabilization and limitation of flow of any gaseous atmosphere, except for the aggressive one in the gas, oil and other branches of industry, for example for pressure reduction of natural gas supplied to the using equipment from gas- distribution stations, gas-regulating stations, gas pressure-reducing plants. SUBSTANCE: the pressure regulator-gas flow limiter provides for limitation of gas flow within a wide range of settings, the functions of control and stabilization of the outlet pressure remaining unchanged. The pressure regulator - gas flow limiter has an axial valve with a flexible gate installed on the pipe-line, joined to the distributor, pilot regulator having a spring mechanism, regulating unit and a comparison chamber divided into two cavities communicating with the pressure differential corrector and a contraction device. Any contraction device, for example, the Venturi nozzle may be used for the purpose. EFFECT: enhanced reliability of operation. 2 cl, 1 dwg