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globe valve

4 in-depth engineering guides on globe valve — specification, selection, testing and procurement.

Everything on globe valve

Vajra's engineering team has published 4 technical guides covering globe valve for industrial valve selection, specification, testing and procurement. Browse the full set below.

Bellows Seal Valve Guide: Eliminating Fugitive Emissions to ISO 15848 Class A

Bellows seal valves use a welded metal bellows to eliminate stem packing as the primary seal, achieving ISO 15848 Class A fugitive emission levels (≤50 ppmv) mandated by EU IED and EPA Method 21.

2026-05-208

Control Valve Selection Guide: Cv Calculation, Types & Actuators

Control valves are the workhorses of process automation - incorrect sizing or wrong valve type causes instability, cavitation, and premature wear. This guide covers Cv/Kv calculation methodology, IEC 60534 liquid and gas sizing, globe vs butterfly vs cage valve selection, trim characterisation, and positioner specification.

2026-05-179

Gate Valve vs Globe Valve - Which to Use for Isolation and Which for Control?

Gate valves and globe valves are both multi-turn valves and are often confused - but they serve fundamentally different purposes in a piping system. Gate valves are designed for full-open or full-closed isolation with minimum pressure drop. Globe valves are designed for throttling and flow regulation, accepting higher pressure drop in return for controllable flow. This guide explains when to use each.

2026-05-029

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.

2026-03-2811