Why Oil Separators Are Important for Your Vacuum Pump

Why are oil separators so important to oil-lubricated vacuum pumps?

If you have oil-lubricated pumps or you are a pump technician you’ve likely heard of oil separators, also known as oil mist eliminators. But what exactly are they, what do they do, and why are they so crucial for your pump’s health and the air quality of your workplace? Let’s dive in.

What an Oil Separator Does

An oil separator’s primary job is to capture and remove oil mist from the exhaust gas of an oil-lubricated vacuum pump. Think of it as a filter for the air coming out of your pump. During the pump’s operation, the oil used for lubrication and sealing gets atomised into a fine mist. Without an effective oil separator, this mist would be released into the atmosphere, creating a mess, polluting the air, and potentially violating environmental regulations.

How They Work

An oil separator typically consists of a cylindrical housing containing a filter element made of a dense, multi-layered material, often a micro-glass fibre. As the oil-laden exhaust gas enters the separator, it’s forced through this filter element. The tiny oil particles get trapped in the fibres. As more and more oil is captured, the droplets begin to coalesce, forming larger drops. These larger drops are then heavy enough to drain to the bottom of the separator’s housing, where they can be collected and returned to the pump’s oil reservoir. This process effectively cleans the exhaust gas before it’s released, ensuring a cleaner, safer work environment.

Inspecting and Replacing Your Oil Separator

Regular inspection is key to maintaining a healthy vacuum pump and ensuring a long service life for your oil separator.

How to Inspect

Check for Visible Leaks: A leaking seal on the separator’s housing can be an indication that the separator is clogged.
Observe the Exhaust: If you see a visible oil mist or smoke coming from the pump’s exhaust, the separator is no longer doing its job and needs to be replaced immediately.
Monitor Back Pressure: If the pump is working harder than usual and you hear a change in pitch, it may be due to increased back pressure caused by a clogged separator. Some pumps have a pressure gauge that you can check. An increase in pressure from the normal operating range could be a sign that the oil separator needs to be replaced.

When to Change

The lifespan of an oil separator can vary depending on the pump model, application, and operating conditions. However, as a general rule, it’s best to replace the oil separator at every scheduled oil change. Even if it doesn’t appear to be clogged or saturated, replacing it as part of a routine maintenance schedule ensures optimal pump performance and prevents unexpected failures. A clogged separator can cause the pump to overheat and fail prematurely, leading to costly downtime and repairs.

Why Buy Your Oil Separators from Vacair Superstore?

When it’s time to replace your oil separator, choosing the right supplier is just as important as choosing the right part. Here at Vacair Superstore, we offer a range of benefits that make us the go-to choice for vacuum pump parts and accessories.

In-stock and Low-Priced: We understand that downtime is costly. That’s why we make sure to keep a wide variety of high-quality oil separators for popular pump brands like Busch, Becker, Leybold and DVP in stock. This means you can get the part you need quickly and at a competitive price.
High-Quality Products: Our oil separators are made from the highest quality materials to ensure maximum performance and longevity. They are designed to meet or exceed the specifications of the original equipment manufacturer (OEM) parts.
Pump Experts: We’re not just a parts store; we’re vacuum pump experts. Our team has extensive knowledge and experience with a wide range of vacuum pumps. This expertise allows us to not only provide you with the right part but also offer valuable advice on maintenance and troubleshooting.

Don’t wait until your pump is failing to replace your oil separator. Check our full selection of in-stock, low-priced, high-quality oil separators today on our Oil Separator page and keep your vacuum pump running smoothly!