Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! How to add flow coefficients for control valves in series or parallel. Control Valves in Series
The equivalent flow coefficient
for two control valves installed in series can be calculated as K or v C v
1 / (K vt) 2 = 1 / (K v1) 2 + 1 / (K v2) 2 (1)
K vt = resulting K v
K v1 = K v valve 1
K v2 = K v valve 2 Control Valves in Parallel
Kor v C for two control valves installed in parallel can be calculated as v
K vt = K v1 + K v2 (2) Related Topics Control Valve terminology, bodies, trim, flow characteristics, Cv and Kv sizing, noise, actuators and positioners Related Documents Flow coefficients - Cv - for typical ball valves - reduced and full bore. Typical flow coefficients - Cv - for butterfly valves. Comparing flow coefficients Cv to flow factors Kv. An online control valve - Cv - calculator for gases. Calculate flow coefficients for the design of control valves - Imperial units. Calculate flow factor Kv for liquids, steam and gases - metric units. Designing steam control valves and their Kv values. Flow coefficients - Cv - and flow factors - Kv - for straight through diaphragm valves. Operating temperatures for typical categories of valves - ball valves, butterfly valves and more. Sizing of water control valves - SI units Sizing of water control valves - Imperial units. Designing water process control valves and their Kv values. Typical flow coefficients - Cv - and flow factors - Kv - for weir diaphragm valves. Search
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