| 摘要 |
A flow control device including a body having an annular flange formed in a middle portion, a pair of sealing rings engaged on the body, two apertures formed in the body and located between the sealing rings, a plug and a spring received between the annular flange and a coupler, and a sleeve threadedly engaged on the body and a gap formed between the sleeve and the body, fluid flowing from the coupler may flow through one aperture and the gap and the other aperture and may flow into the other end of the body, and the plug will be pushed against the spring when the fluid flows into the body from the other end of the body such that the fluid may flow through the bore of the body and may flow out of the coupler.
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