Compressor System Resistance Curve

The system resistance met by a compressor can vary from a constant discharge pressure to a variable relationship as shown in the generalized system resistance curves of Figure 100-9.

Examples of the three types of curves are:

Type 1 – Constant Pressure
• Gas Lift
• Gas Injection
• Refrigeration
• Plant/Air Instrument Air

Type 2 – Combined Constant Pressure and Friction Process with piping and equipment plus constant pressure drop through catalyst bed.

Type 3 – Predominately Friction
Systems with only piping, fittings, and equipment such as heat exchangers.

Leave a Reply

Your email address will not be published. Required fields are marked *