Orifice Restrictors

Better control your gas or air flow rates with an orifice restrictor from Coast Pneumatics.

Orifice restrictors are compact devices that offer precision-drilled holes to block a flow stream, dropping pressure from upstream to downstream processes in pneumatic control circuits. The surface area of the orifice determines the flow rate at the outlet of a given process. The smaller the orifice restrictor, the less flow it allows.

Create a reliable method to produce a predictable, repeatable flow rate of liquid, gas or air at your application by choosing a specific diameter orifice restrictor. Orifice restrictors are available in eleven color-coded sizes from 0.004" to 0.040". The orifices are precision molded of polysulfone and are held to flow tolerances of +/- 4 percent.

Our support team is available at all times to help customers determine the best type of orifice restrictor for their application. Please depend on us for your orifice restrictor needs.

Coast Pneumatics is a leading supplier of orifice restrictors and has developed partnerships with the world’s foremost manufacturers. These relationships enable our team to meet customers’ needs at competitive prices.


  • Reduce flow
  • Increase air or fluid velocity
  • Accurate throttling
  • Precisely meter flow