What Is The Difference Between Mechanical Seal And Oil Seal?

What is the difference between mechanical seal and oil seal?

The difference between mechanical seal and oil seal

Describe difference between mechanical seal and oil seal – Whether it is a mechanical seal or oil seal, it prevents the fluid seeping the liquid to other parts of the machine, or it keeps the rotating parts lubricated.

Both sealing types are popularly used in different mechanical engineering applications. How are they different? The article explains the fundamental working mechanism of both categories of seals.

Mechanical Seal

The mechanical seal is used in a pump, mixer and other mechanical engineering scenarios to contain the fluid within a vessel where a shaft rotates through a stationary (or rotating) housing.

Why is mechanical seal important in this situation? It is because the rotating shaft has to move in a wet environment, but there should not be the leakage of pressurized fluid. Hence, the role of a seal is quite critical.

Does it mean the seal stops the leakage completely? Well, on the practical grounds yes because there is no ‘visible leakage’.

There is a little leakage as the fluid vapors get released into the atmosphere from the faces of the seal, though. Since the quantity is hardly quantifiable, the seals are considered leak proof.

Qualities of mechanical seal

The seals do not damage pump sleeve or shaft.

Due to inboard springs that get adjusted as the seal faces wear, it is not required to do daily maintenance.

Mechanical seals cause less power consumption than gland packing because of the lightly loaded faces.

In mechanical seals, the lubricant doesn't get washed out. Therefore, bearing contamination gets avoided in normal operational conditions.

Plant equipment remains corrosion free.

Relatively less maintenance and cleaning are required. It makes mechanical seals cost-effective.

Oil seals prevent accumulation of dirt in the machine.

Oil Seals

Oil seals close off the space between stationary and moving components in the mechanical equipment. It saves the lubricant from escaping through the equipment and ensures smooth operation of the machine.

Oil seals are called rotary shaft seal or radial lip also.

Benefits of oil seals

Oil seals prevent seeping of potentially hazardous contaminants like dirt or fluid in the running machine

These seals safeguard mixing of two things like oil and water

In the high-intensity work environment, oil seals play a vital role

Oil seals are long-lasting and sturdy

Oil seals can work relentlessly if the preventive and corrective maintenance is in place

Low wear and tear

Since oil seals are versatile and multipurpose, they are suitable for all types of mechanical engineering situations, e.g., manufacturing units, automobiles, pumps, etc.

When there is a need for rebuilding a cylinder and pump instead of building a new one.

It is possible to get custom-made seals manufactured at reasonable rates from good-quality manufacturers if the readymade seal specification doesn’t meet the requirement.

It is critically important that you choose the appropriate seal for an application. The seals should be ordered from a manufacturer of high repute. To get the best seals, it is important to give accurate design specifications. We describe the difference between mechanical seal and oil seal here.

Leak-Pack specialize in providing solutions to all types of leakages by manufacturing Mechanical Seals and Sealing Components as per customer’s drawings, samples or requirements. To know more about Mechanical Seal call on +91-(2739) 271592 or email at info@leakpack.com.

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Difference between a Mechanical Seal and an Oil Seal?

Difference Between a Mechanical Seal and an Oil Seal

Here we describe the difference between mechanical seal and oil seal. Seals are important devices in any mechanical engineering setup because they function to prevent or limit the leakage of fluids. Not just that, they have a crucial role in applications that have components that do not have movements significantly different from each other.

Seals play a crucial role in applications that have a significant movement from rotation or reciprocation. The seals offer the inlet and outlet of a rotating shaft. Normally, it is used to prevent high-pressure fluid leaking into a low-pressure fluid.

Their primary purpose is to reduce, limit, or prevent any potential flow, which might arise between two components of a machine.  In locations where machine designs have pressurized fluids that require contaminants within a defined area, like hydraulic cylinders.

Mechanical Seal and Oil Seal- a comparison

When we talk about seals, they are mainly of two types- oil seals and mechanical seals. In various mechanical engineering applications, they are used. But the question is how they are different from each other. What are their distinct features?

Oil seals or rubber oil seals or oil gaskets or dirt seals are the same things. They prevent leakage associated with the lubrication of oil in mechanical equipment or component. They close the space between moving and stationary components. Precision bearings are especially useful. It prevents corrosive moisture from seeping into the bearings.

The shape and size of the oil seal vary in shape and size. They are made in such a way that they fit into various types of pipes, valves, and other openings.

As far as mechanical seals are concerned, they are used to contain fluid within a mechanical vessel, e.g., a pump and mixer. Here, a rotating shaft passes through various stationary housings. In some cases, the housing rotates around the shaft.

As far as the difference between a mechanical seal and an oil seal is concerned, a mechanical seal has three sealing points. The stationary part of the seal is fitted to the housing with a static seal. An O ring is used to seal the rotary portion. It can seal the faces well.

The fluid film is another aspect that makes a difference between mechanical and oil seals. The majority of mechanical seals need a certain level of lubrication. The necessity of lubrication is made possible by the thin film of fluid present in the two faces of the seal. These are the differences between a mechanical seal and an oil seal.

Beston Seals is ISO certified company specializing in providing solutions to all types of leakages by manufacturing mechanical seals and sealing components as per customers’ drawings, samples, or requirements. We are one of the best rotary union and mechanical seal manufacturers in India based in Mumbai, Maharashtra. To know more about mechanical seals call on +91-9820007401 or email info@bestonseals.com.