valve maintenance
7 in-depth engineering guides on valve maintenance — specification, selection, testing and procurement.
Everything on valve maintenance
Vajra's engineering team has published 7 technical guides covering valve maintenance for industrial valve selection, specification, testing and procurement. Browse the full set below.
Industrial Valve Maintenance Schedule - Annual, 3-Year and 10-Year Inspection Guide
A structured valve maintenance schedule - from annual gland packing checks to 10-year full strip-down and re-testing - is essential for plant reliability, regulatory compliance, and preventing costly valve failures during operation. This guide covers industry-standard inspection intervals and procedures.
Valve Maintenance for Turnaround & Shutdown (TAR) - Selection, Inspection & Replacement
Plant turnarounds are the primary window for valve inspection and replacement. This guide covers what to inspect, when to replace vs. repair, and how to plan valve procurement for a major TAR.
Gate Valve Leaking: Causes, Diagnosis and Repair Guide
A leaking gate valve can mean seat passing, packing gland weep, or a body defect - each with a different fix. This guide walks through how to diagnose the leak source and decide whether to repair or replace.
Ball Valve Stuck or Won't Turn: Field Diagnosis and Fix
A ball valve that is stuck or won't turn is one of the most common field maintenance problems. The cause determines the fix - PTFE cold-flow, corrosion, thermal expansion, and over-torque each require a different approach.
How to Replace Gate Valve Packing: Step-by-Step Maintenance Guide
Replacing gate valve packing is one of the most common field maintenance tasks - and one of the most frequently done incorrectly. A methodical approach prevents leaks, stem damage, and unsafe conditions.
Industrial Valve Troubleshooting: 12 Common Problems and How to Fix Them
Valve failures account for a significant share of unplanned plant downtime. Most failures fall into 12 identifiable patterns with known root causes. This guide covers each problem, its most likely causes, and the recommended fix - from packing replacement to seat re-lapping.
Industrial Valve Maintenance Guide: Inspection, Troubleshooting and Best Practices
Unplanned valve failures cause costly production shutdowns, safety incidents, and environmental releases. This guide covers routine inspection protocols, common failure modes for all major valve types, and predictive maintenance strategies to maximise valve service life.
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