ISA 75.17-1989
- Control Valve Aerodynamic Noise Prediction
- standard by The International Society of Automation, 04/01/1989
- Category: ISA
$55.00
$28.00
This standard establishes a method to predict the noise generated in a control valve of standarddesign by the flow of compressible fluid and the resulting noise outside of the pipe anddownstream of the valve. The transmission loss ( TL) equations are based on a rigorous analysisof the interaction between the sound waves that exist in the pipe and the many coincidencefrequencies in the pipe wall. Commercial pipe specifications allow a relatively wide tolerance inpipe wall thickness. This limits the value of the very complicated mathematical methods requiredfor a rigorous analysis; calculations prove that a simplified expression is justified.The equations in this standard make use of the valve sizing factors defined in ANSI/ISA-S75.01and ANSI/ISA-S75.02.This method was developed from the fundamental principles of acoustics, fluid mechanics, andmechanics.
PDF
All of our standards document are available in PDF (Portable Document Format), an electronic, downloadable format.You will be able to download the file in your account downloads.
Multi-User Access
After purchasing, you have the ability to assign each license to a specific user.
Printable
At any time, you are permitted to make printed copies for your and your members' reference use.
