Tag Archives: wear rings

Preventing Seal Failure

Seals are small components that have a big function. At their most essential purpose, they keep fluid in and debris out. Failure to do this can lead to costly machine destruction, and even endanger the lives of people working around these machines. Preventing seal failure is very important on many different levels.

What Seals Are Up Against

Many factors can cause a seal failure. Being aware of these factors will help you in preventing an avoidable failure. Seals are under constant pressure because of the liquid or gas being contained. Typically, the seals in pipes or machinery have some type of matter within transferred at high velocities. This is a huge part of what they were designed to do, but too much or too little pressure could wear down the seals.

In addition, extreme temperatures can cause the seal to become brittle. A mixture of extreme temperatures and pressure is a recipe for cracking and leaking. Also, debris can contaminate the integrity of the seal. Even in clean environments, the small shavings from pistons or hydraulics can get into the seal. Chemical compounds can cause a much faster seal breakdown, so be aware of what type of matter stays concealed. Finally, time will cause the seal to break down. There is no way to avoid this one, so ensuring you mitigate the other factors can help the longevity of a seals life.

Different Types of Seals

Each seal has a specific purpose and function. Putting the right seal in the right environment will help you have a more successful operation.

  • Types of O-Ring ApplicationsO-rings are the most popular type of seal. They are meant for static conditions and can conceal liquid and gas.
  • Rod seals should work with hydraulic cylinders. They typically work best with concealing fluid and can withstand movement.
  • Piston seals should also be used with hydraulics, but specifically pistons instead of cylinders.
  • Wear rings find usage in sewage pumps mostly. They are used to decrease the leakage around an impeller, which is the rotor that increases the flow of liquid.

Preventing Seal Failure: How To

These are the main points of failure for seals and the best ways to avoid them:

  • Install the seal properly. Even with improper installation, a seal can work initially, but it will fail much quicker. Seals need to have the exact size for a precise fit. Or they will fail. Make sure to get the correct seal for the area in which you plan to install it.
  • Cleanliness is paramount. Although it is important to keep debris away from the seals, that is not where cleanliness needs to begin. You also need to make sure that the area is clean of debris during installation.
  • Find the proper rating for the environment. Seals have different ratings for temperature and pressure. Make sure the seal can handle these two factors for longevity.
  • The finish of the seal and the shaft need to match. You can’t have a smooth shaft with a seal that has edges or burrs. Anything that can be caught or cause friction will create debris. This mismatch can also throw the seal out of alignment.
  • Ensure all other parts of the machinery are functioning correctly. An anomaly somewhere else can cause undue stress to the seals.
  • Periodically check the fluid conditions. The purpose of a seal is to prevent leaks, but too much or too little fluid can cause damage. Verifying the fluid conditions stay consistent will keep the seal in good shape.
  • Replace seals promptly. This one comes more with experience. Always replace seals before they get too worn to stay effective.

The original article was written by staff at Real Seal and can be found on their website here.

For more information about seal problems you are having and how Gallagher Fluid Seals can help, contact our engineering department.

Vesconite Hilube Wear Rings Save Money for Pump OEM

Vesconite Hilube Saves Energy Costs for Pump OEM

The installation of Vesconite Hilube wear rings can result in electricity savings that more-than-pay for the wear ring.

picture of hilube wear ringsThis was the result of a study by a large pump original equipment manufacturer (OEM) that compared energy usage on a typical submersible pump when Vesconite Hilube wear rings were in place versus stainless steel wear rings that had been previously installed.

Vesconite Hilube is a low-friction wear-resistant polymer. Wear rings made from the material are designed to seal the pressure leakage of the liquid between the inlet and the impeller and the pump casing, and should result in a higher pumping efficiency due to lower by-pass.

Vesconite Bearing technical pump consultant Phillip de Villiers was pleased when the pump OEM’s results independently proved Vesconite Hilube’s ability to improve pumping efficiency and decrease electricity usage.

The study showed a 0.11kW/h energy reduction when operation of the pump with a large diameter stainless steel wear was compared with operation of the same pump type with a dimensionally-identical Vesconite Hilube wear ring.

Assuming the Vesconite Hilube wear rings use on an industrial pump, operating 24 hours a day, 365 days a year, the electricity savings from installing a Vesconite Hilube wear ring add up, particularly when the pump is operated in a jurisdictions in which electricity charges are high.

In the specific pump that was studied by the OEM, the wear ring would have a three-month payback even where a low electricity cost was assumed, notes De Villiers.

He adds that electricity savings for a five-to-ten stage submersible pump can be significant if the electricity savings of each stage are added together.

With concerns about global CO2 emissions from electricity generation – which reached 12Gt in 2010 – as well as an awareness that pumps account for 10% of global electrical energy consumption, technological interventions are valued by pump manufacturers and pump users.

They are also of interest to state and national governments that are interested in reducing carbon emissions to keep global warming under 1.5°C.


The original article can be found on Vesconite’s website.

For more information about Vesconite’s Hilube or other bearings and bushings, please contact Gallagher Fluid Seals’ engineering department.

Self-lubricating Composite Wear Rings

Composite Wear RingsCIP Composites are laminated polymer materials made by impregnating textiles with thermoset resins. Solid lubricants are added to the resin to provide evenly dispersed lubrication throughout the material, providing smooth operation.

CIP custom composite wear rings are a superior alternative to commonly used cotton phenolic and glass filled nylon materials. They allow smooth operation and high side loads while protecting the sealing elements and preventing metal to metal contact in hydraulic cylinders. CIP wear rings are preferred where high performance, large diameters and/or high temperatures are required.

CIP Composite wear rings provide manufacturers and servicers alike with solutions to reduce overall maintenance and increase wear life. CIP offers short lead times, reducing the costs associated with equipment downtime and repairs. CIP Composites are manufactured in the United States using only the highest quality materials.

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CIP Composites for Industrial Applications

Industrial applications can be found in many industries and range from hydraulic cylinders to heavy duty equipment. Many industrial applications are in harsh environments including dirt and mud, chemicals, a range of temperatures, and hard to reach locations, making maintenance a challenge. Equipment down time for maintenance and repairs can be detrimental to the industry.

CIP Composites offers solutions for rigorous industrial applications by extending wear life while reducing or eliminating external lubricants and undesired maintenance. As a general guide, CIP Composite bushing materials can replace your current bronze or nylon based wear and bearing materials. Sold in tubes or sheets for easy machining onsite, or custom manufactured with short lead times.

Hydraulic & Pneumatic

CIP Composites - Wear Rings
CIP Wear Rings

Hydraulic cylinders are the ideal choice for a host of mobile and industrial applications where power and reliability, along with low operating costs are required. Hydraulic (and even pneumatic and electrical actuator) cylinders are handling more demanding applications than in previous years, such as the use of smaller cylinders which force higher and higher operating pressures. Manufacturers and servicers alike depend on quality components to ensure that their finished product meet or exceeds the customer requirements including long service life, affordability, and availability.

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