pressure drop
4 in-depth engineering guides on pressure drop — specification, selection, testing and procurement.
Everything on pressure drop
Vajra's engineering team has published 4 technical guides covering pressure drop for industrial valve selection, specification, testing and procurement. Browse the full set below.
Valve Sizing for Control Valves - Cv, Kv, and Pressure Drop Calculation
Correctly sizing a control valve prevents oversizing (poor rangeability, instability) and undersizing (insufficient flow). This guide explains Cv, Kv, pressure drop, and the ISA/IEC sizing equations with worked examples.
Industrial Strainer Selection: Y-Type, Basket, Duplex & Temporary Cone Strainers
Strainers protect pumps, control valves, flow meters, and instrumentation from pipeline debris. Selecting the wrong strainer type, mesh size, or body material leads to excessive pressure drop, frequent clogging, or damage to downstream equipment. This guide covers all industrial strainer types, mesh selection, pressure drop calculation methodology, and material selection.
Full Bore vs Reduced Bore Ball Valves: When to Choose Each
The choice between full bore (full port) and reduced bore (standard or regular port) ball valves is one of the most common and consequential decisions in pipeline and process piping design. Full bore valves cost 20 to 40% more but eliminate pressure drop and allow pigging operations. This guide explains when the premium is justified and when reduced bore is the better engineering choice.
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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