PRESSURE CONTROLLER Russian patent published in 1997 - IPC

FIELD: automatics, equipment of gas supply systems for boiler rooms and other industrial objects. SUBSTANCE: pressure controller has body 1 with inlet 2 and outlet 3 spaces between which seat 4 is positioned to expand functional capabilities of controller for provision of measurement of flow rate of gas passing through it. Servo drive 5 attached to body 1 has in outlet space 3 sealed unloading chamber 6, hollow rod 7 with valve 8 and duct 9. Valve 8 is attached to rod with the aid of extension piece 10 with duct 11 for communication of sealed chamber with space of seat 12. Hole 14 for sampling of static pressure is made in inlet space 2. Pulse tubes 15 and 16 join sealed chamber 6 and hole 14 to meter 17 of pressure differential. EFFECT: expanded functional capabilities of pressure controller. 1 dwg