In the world of industrial vacuum technology, reliability is the silent partner of productivity. For over 40 years, Girovac has seen how even the most robust systems can be brought to a standstill by a single component failure. Whether you are running a laboratory freeze dryer or a high-capacity manufacturing line, the failure of a vacuum pump is never a minor event. At best, it is an inconvenience; at worst, it represents a significant financial, operational, and safety risk.
This is particularly true for the MIL'S Evisa range: the industry-leading French-engineered rotary vane pumps that we have supplied and serviced across the UK since the 1980s. While these pumps are renowned for their longevity, the way they are maintained is undergoing a fundamental shift.
The introduction of the MVM (Monitoring) option represents a move away from "best guess" maintenance schedules towards a data-driven, predictive approach. Here is why predictive maintenance is becoming the new standard for Evisa vacuum pump maintenance.
The Problem with Traditional Maintenance Strategies
Historically, most facilities have relied on two primary methods of keeping their vacuum pumps running:
- Corrective Maintenance: Repairing the pump only after it has failed. This is the most expensive strategy, as it leads to unplanned downtime and potentially catastrophic internal damage that could have been avoided.
- Preventive Maintenance: Performing service at fixed intervals based on manufacturer recommendations or historical experience (for example, changing the oil every 3,000 hours).
While preventive maintenance is a significant step up from waiting for a breakdown, it has inherent flaws. These intervals are often arbitrary. If you perform maintenance too early, you incur unnecessary costs and take the equipment offline when it is still in peak condition. If you perform it too late: perhaps because the pump has been running in particularly harsh or contaminated conditions: you risk a failure before the next scheduled service.
Even in installations with built-in redundancy, such as the MIL'S Hospivac systems used in healthcare, redundancy does not eliminate the risk. It merely provides a safety net. Harsh operating conditions, inadequate lubrication, or missed service windows can still compromise the primary and backup units alike.
Why Predictive Maintenance is the New Standard
Predictive maintenance for vacuum pumps changes the logic entirely. Instead of following a calendar or a clock, maintenance is driven by the actual condition of the equipment.
By continuously assessing the health of the pump, interventions are carried out exactly when they are needed: neither a day too early nor a day too late. This "condition-based" approach is becoming essential as operators look to reduce the total lifecycle cost of their equipment rather than just the initial purchase price.
Why Focus on Oil?
For lubricated pumps like the Evisa range, the lubricating oil is the lifeblood of the system. Most mechanical issues we see in our North Walsham workshop are directly or indirectly related to the oil. Whether it is a drop in oil quantity, a degradation in quality, or high levels of process contamination, the oil is the first indicator that something is wrong.
This is why MIL'S has focused its development efforts: and its sensor technology: on comprehensive oil condition monitoring.
Introducing the MVM Monitoring Option
To support this shift toward smarter maintenance, MIL'S now offers the MVM Monitoring option across the Evisa range. This is not just a simple alarm; it is a sophisticated electronic system designed to provide a real-time window into the pump’s internal health.
The MVM system consists of four key components:
- Electronic Control Unit (ECU): The "brain" of the system that processes data from the sensors.
- Integrated Sensors: These continuously measure the pump’s critical operating parameters, with a primary focus on the state of the lubricant.
- Local Status Indicator: A visual interface on the pump itself that provides immediate feedback on the health of the unit.
- Remote Alarm Contact: Allows for easy integration into wider plant monitoring or SCADA systems, ensuring that maintenance teams are alerted even if they aren't physically standing next to the pump.
How It Works
The MVM system is capable of detecting subtle deviations in operating parameters. It doesn't just tell you that something is wrong; it assesses the criticality of the deviation and identifies the most probable root cause. This level of detail allows your engineering team to prepare the correct parts and tools before the pump is even taken offline.
The Business Case for MVM Monitoring
For facility managers and maintenance engineers, the advantages of MVM monitoring MIL'S equipment are clear and measurable:
- Reduced Unplanned Downtime: Early fault detection allows you to catch a failing bearing or contaminated oil before it leads to a total pump seizure.
- Improved Reliability: Critical processes (such as those in the pharmaceutical or aerospace sectors) require absolute certainty. MVM provides the data to back up that confidence.
- Optimised Maintenance Planning: You can move away from rigid schedules and plan interventions around your production peaks, knowing exactly how much "life" is left in your current oil charge.
- Extended Equipment Lifetime: By detecting degradation before significant damage occurs, you prevent the kind of internal wear that leads to expensive full overhauls or premature replacement.
Total Lifecycle Cost: A Forward-Looking Approach
At Girovac, we are seeing more and more of our customers evaluate their vacuum equipment based on total lifecycle costs. A pump that is slightly more expensive upfront but features advanced predictive monitoring will almost always be the more cost-effective choice over five to ten years of operation.
Predictive maintenance is no longer a luxury reserved for the largest manufacturing plants; it is the new industry standard. By integrating the MVM option into your Evisa vacuum pump maintenance strategy, you are protecting your investment and ensuring your operations remain efficient and uninterrupted.
Expert Advice and Support from Girovac
Whether you are looking to upgrade your existing systems or are specifying a new installation, our team is here to provide the technical expertise you need. As the UK distributor for MIL'S, we carry the full range of products, spares, and expert repair services to keep your vacuum systems at peak performance.
No task is too small or too large: from supplying a single O-ring to designing a bespoke, multi-pump system with full predictive monitoring.
Interested in learning more about the MVM option for your Evisa pumps?
Contact our team today or email us directly at [email protected] to discuss how predictive maintenance can benefit your facility.