DEVICE FOR REDUCING GAS Russian patent published in 2006 - IPC F17D1/04 

FIELD: pipe-line systems.

SUBSTANCE: device comprises inlet pipeline connected with the input of gas pressure regulators through the filter and controllable valving members that are in coincidence with the distributors, chamber, relief pipeline with safety valve, outlet pipeline with controllable valving member, feedback line, and connecting pipelines. The chamber is made of a tank that is composed of the housing having a lid. The outer side of the lid is provided with the pressure regulators having distributors. Each pressure regulator is additionally provided with check valve connected to its outlet and secured to the inner side of the lid, two pilot regulators, and gate valve. The first inlet of the first pilot regulator is connected with the outlet of the corresponding distributor, and its outlet is connected with the first inlet of the second pilot regulator and gate valve. The other end of the gate valve is connected to the outlet of the second pilot regulator and inlet of the distributor. The second inlets of all pilot regulators are interconnected through the feedback line connected with the outlet pipeline upstream of the controllable valving member.

EFFECT: expandable functional capabilities.

1 dwg