| 摘要 |
FIELD: physics, control.SUBSTANCE: group of inventions relates to a pipe fitting and is intended as a fluid medium flow control device for balancing pressure of a fluid medium. A disc-shaped locking mechanism for use in an internal valve comprises oppositely lying first and second shut-off surfaces for controlling passage of the fluid medium through the internal valve, at least one passage channel which passes through the disc-shaped locking mechanism, an opening for receiving the rod of the internal valve and a flow diverting device. The flow diverting device lies on the same line with at least one passage channel and diverts flow of the fluid medium from at least one passage channel to prevent compression of the spring by the flow of the fluid medium. Said spring is at least partly situated in the disc-shaped locking mechanism. There are also versions of fluid medium flow control devices.EFFECT: high reliability and longevity of operation.20 cl, 17 dwg |
