The standard specifies material requirements to handle specific gas compositions, including corrosive gases. It highlights:
It serves as a definitive checklist during factory acceptance testing (FAT) and field commissioning.
A common point of confusion in the industry is the difference between API 11P and other API compressor standards. The two most frequently compared are and API 618 .
, which governs more complex, heavy-duty "special purpose" reciprocating compressors used in refineries and petrochemical plants. Key Technical Sections api 11p pdf
A comparison of for corrosive (H2S/CO2) service? GCA Overview - Gas Compressor Association
API Standard 11P governs the minimum requirements for packaged, reciprocating compressors utilized in petroleum and natural gas production services. Specifically, it focuses on high-speed, separable reciprocating compressors driven by electric motors or internal combustion engines.
: Official publications and standards plans can be found on the API Publications Commercial Standards Stores The two most frequently compared are and API 618
A: For professional engineering applications, . Free versions are typically outdated, incomplete, and may not comply with copyright laws.
It is essential to purchase the standard from reputable sources to ensure you receive an authentic, legally compliant copy. Several platforms offer the PDF, including: Offers secure PDF (SPDF) versions. NSAI Standards : Provides the latest 2025 edition.
: New data sheets promote better interaction between purchasers and packagers regarding site-specific operational needs. 3. Market and Industrial Impact GCA Overview - Gas Compressor Association API Standard
(which is for refinery services), API 11P focuses on high-speed, separable, or belt-driven units in upstream and midstream natural gas service
Packaged Reciprocating Compressors for Oil and Gas Production Services Intertek Inform Core Features of API 11P
A: For refinery and petrochemical services, API 618 is typically the appropriate standard rather than API 11P.
High-speed machines run at high frequencies, creating massive pressure waves. The standard outlines specific criteria for package suction scrubbers, pulsation bottles, and structural layout configurations to prevent pipe fatigue and mechanical failures. Industry Comparison: API 11P vs. API 618
API maintains ongoing standardization procedures ensuring appropriate notification and participation in the developmental process. Questions regarding interpretation of API 11P content or procedures should be directed to the Director of Standards at the American Petroleum Institute (200 Massachusetts Avenue, NW, Suite 1100, Washington, DC 20001). Requests for permission to reproduce or translate API 11P materials should also be addressed to the same office.