flow coefficient
3 in-depth engineering guides on flow coefficient — specification, selection, testing and procurement.
Everything on flow coefficient
Vajra's engineering team has published 3 technical guides covering flow coefficient for industrial valve selection, specification, testing and procurement. Browse the full set below.
Valve Sizing: Cv and Kv Calculation Guide for Industrial Valves
Cv (imperial) and Kv (metric) are the universal measures of valve flow capacity - this guide covers the sizing equations for liquid and gas service, cavitation check, and control valve rangeability.
Valve Cv Calculation: Flow Coefficient Formula, Worked Examples & Kv Conversion
Cv (flow coefficient) is the fundamental metric for sizing and selecting control valves, isolation valves, and regulators. This guide explains the Cv formula for liquids, gases, and steam, walks through worked examples with real numbers, and shows exactly how to convert between Cv and Kv.
Control Valve Sizing and Cv Calculation: A Step-by-Step Engineering Guide
Control valve sizing is the most critical step in ensuring stable and accurate process control. An oversized valve operates at low opening and is prone to instability and seat erosion; an undersized valve starves the process and cannot meet maximum flow demand. This guide explains the Cv flow coefficient method, ISA/IEC 60534 equations for liquid, gas and steam, and common sizing pitfalls to avoid.
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