is the internationally recognized performance test code specifically designed for Displacement Compressors, Vacuum Pumps, and Blowers . Unlike general thermodynamic guidelines, PTC 9 provides explicit, step-by-step procedures for conducting tests to determine the absolute performance characteristics of these machines. Key Objectives of the Code
To get the , always source it from authorized entities: 1. The Official ASME Digital Store
While the core principles of displacement compressors have not changed, newer versions of ASME PTC codes (like the 2010 revision of PTC 9) provide clearer definitions and more accurate, modern testing procedures compared to older, 1970-era documents.
: Digital libraries like Scribd often host legacy versions (e.g., 1970 or 1979) for academic or research reference. asme ptc 9 pdf best
ASME PTC 9 (Performance Test Code 9) is a historical standard for testing Displacement Compressors, Vacuum Pumps, and Blowers . It is important to note that ASME PTC 9 is currently an
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While the full text of the code is necessary for conducting a test, its structure is typical for performance test codes. Based on a historical edition of PTC 9, its sections include: The Official ASME Digital Store While the core
: Standardized methods to calculate power use in relation to speed, capacity, and intercooling.
: The final version is the 1970 edition, which was reaffirmed in 1997 (PTC 9-1970 R1997).
Establishing test procedures, selecting instrumentation (pressure gauges, flow meters, thermometers), and determining necessary corrections for elevation or gas characteristics. It is important to note that ASME PTC
Defines the exact boundaries of the test and what types of displacement machinery are covered.
Not all PDFs are created equal. The “best” version for engineers and plant managers should meet three critical standards:
: Authorized distributors like GlobalSpec and Intertek Inform provide digitized versions of the 1970 edition.
This section defines exactly which types of machinery fall under PTC 9 guidelines. It typically applies to rotary and reciprocating displacement compressors handling air or gases. 2. Guiding Principles