Page 414 - Reciprocating Compressors Operation Maintenance
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Reciprocating Compressor Calculations 399
THRU YALUBS AM
APPROXIMATE AMD
VART BKTVBtN VALVB
TYPES AND HAHOrACTtmtRS.
3000 4000 SOOO 6000 7000 8000 9000
API VALVE VELOCITY
FIGURE A-5. Valve losses as a function of gas molecular weight and velocity.
».* 1.6 1.8 2.0 3.0 4,0 5.0
COMPRESSION RATIO
FIGURE A-6. Valve efficiency as it relates to valve loss factor and compression
ratio on typical air compressors.
