Sonic Nozzles are instruments designed for the accurate measurement and control of gas flow. It is made of a circular arc which forwards towards throat area. Conical diffuser section is tangent to the circular arc. It can be used in various applications like gas flow meter, flow controller and flow limiting device. The nozzles can handle a flow rate from 0.04 to 10,000 standard cubic feet per minute. Its size ranges from a minimum throat diameter of eleven thousandths of an inch to a maximum of one inch. To measure pressure and temperature it has taps in the upstream flow straightener. A pressure tap is provided in the downstream flow straightener to check for a critical ratio across the throat.
When the gas flows through the narrow section of the nozzle, the inlet pressure is converted to velocity, which reaches a maximum at the throat. When the fluid velocity reaches the speed of sound at the throat, the flow rate varies linearly with the inlet pressure and is not affected by downstream pressure fluctuations. The pressure drop across the nozzle must be sufficient to maintain sonic flow at the throat.   Flow occurs when the downstream pressure is not greater than one-half of the upstream pressure. The Cox design improves this ratio so that sonic flow can be achieved in many applications when the downstream pressure is as much as three-quarters of the upstream pressure.

We supply these Sonic Nozzles that can be used in various industries and applications in the United Arab Emirates. Contact us for these Sonic Nozzles in Dubai, Abu Dhabi, Sharjah, RAK, UAQ, Ajman &  Fujairah too.