The difference between the types of maintenance
Corrective maintenance
Machine downtimes: unplanned
Productivity: at risk
Preventive maintenance
Machine stops: planned
Productivity: average
Predictive Maintenance
Machine stops: optimized
Productivity: maximum
Corrective maintenance
We only intervene when something breaks: intervention only after failure.
Advantages
- Leverage the entire life cycle of components
Disadvantages
- Risk of plant downtime and loss of production even for long periods
- Extensive damage to other components
- High maintenance costs: staff 24 hours / 7 days a week
- High warehouse costs for spare parts in stock or in case of lack of stock material, long periods of supply of goods
Preventive maintenance
Scheduled interventions and periodic maintenance
Advantages
- Stops planned well in advance of the plant
- Reduction of sudden failures and damage to other components
- Reduction of the risk of plant downtime
Disadvantages
- Life cycle of components not fully exploited
- Limited knowledge of valve health
- Management costs higher than the corrective
- Need for spare parts in stock
Predictive Maintenance
Remote health check of installed valves with Valve Aware from GE Predictivity.
Advantages
- planned stops without loss of production
- Reduction of sudden failures and damage to other components
- Use of the entire operational life cycle
- Real knowledge of the state of health
- Scheduled maintenance based on the health of the valve
- Low spare parts warehouse costs
- Optimization of the availability of maintenance personnel
Disadvantages
None
*** “Valve Aware” program features.
“Valve Aware “features a modern and intuitive interface that allows users to:
- Access vital valve information, such as current valve condition, key performance indicators (KPIs) and test data;
- Configure global and individual valve specifications and error limits;
- View the test history and start real-time tests on the valves;
- Perform diagnostic, administrative, and analysis activities;
- Schedule diagnostic tests for specific valves;
- Generate reports.
Chemical 
Corrosive Service 
Erosive Service 
Fugitive Emissions Control 
General Service 
Mining 
Oil & Gas 
Power Plant 
Pulp & Paper 
Refinery 
Severe Service 
Water / Wastewater 
