DEVICE FOR REDUCING FLUID MEDIUM PRESSURE Russian patent published in 2009 - IPC F16K47/08 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to valve construction industry and namely to devices intended for reducing fluid medium pressure, and is meant for being used in gas and liquid transportation systems. The device meant for reducing fluid medium pressure includes a number of cylinders. Each of the cylinders has inner diametre surface, outer diametre surface and a lot of holes passing from inner diametre surface to outer diametre surface. Cylinders are installed one into the other so that the essential part of inner diametre surface of one of the number of cylinders is in contact with the essential part of outer diametre surface of the other cylinder. Sections of holes of one of the cylinders are aligned at least with sections of holes of the other of the cylinders thus forming a fluid medium channel. One hole of the second set of holes of the cylinder is connected via fluid medium at least to two holes of the first set of holes of the cylinder, or at least two holes of the second set of holes of the cylinder are connected via fluid medium to one hole of the first set of holes of the cylinder. There are versions of the design of the device fro reducing fluid medium pressure.

EFFECT: improving reliability of reducing potential energy, pressure and/or noise at the fluid medium passing through the channel.

42 cl, 6 dwg