FLOW CONTROL DEVICE

摘要

An adjustable flow control device is provided which has a valve body containing a series of orifices of varying diameter and an indexable valve cover which includes at least one flow conduit which can be positioned and locked in a sealable manner over a chosen orifice whilst the remaining part of the valve cover closes off the other orifices of the valve body. Due to the device having fixed size orifices, each orifice will provide a fixed specific fluid flow rate for any predetermined pressure loss across the orifice. The device is suitable for use on all types of gas and liquid fluids.

主权项

1. A flow control device having a first element and a second element, wherein:
the first element has a plurality of first orifices each of a predetermined cross-section and the second element has a second orifice, and wherein the first and second elements are selectively and sealingly engagable in a plurality of positions, in each of said positions the second orifice being aligned with a different one of said first orifices so as to permit fluid communication through the device via said second orifice and the selected first orifice.