UK-Made Mechanical Seals for Your Equipment
Reliable seals, designed, built and repaired in the UK to keep your pumps, mixers and rotating equipment running smoothly.
Over 40 Years Experience
Mechanical Seal Experts Working for You
At RB Mechanical Seals, we design, manufacture and repair high-performance mechanical seals that keep your equipment working efficiently. Whether you run pumps, mixers or specialist rotating machinery, your equipment will work better with seals that are built for your application, not just something close.
Everything we supply is made by us in our UK workshop using the right materials to suit your running conditions so you get seals you can depend on, built for your system.
We support a wide variety of industries like food production, chemical processing, water treatment and manufacturing, even farming, agriculture and quarrying. If your process involves rotating equipment, we will have a sealing solution for it.
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We are here to help
The Right Seal for Your Job
We can help you choose the correct seal type for your application as we offer a complete range of mechanical seals for different types of rotating equipment:
RBE Rotary Seal
Externally mounted and pressure balanced, ideal for chemical and hygienic use.
RBI Rotary Seal
Designed for pumps, mixers and to replace traditional gland packing.
RBC Single Cartridge Seal
A tough, pre-set seal for pumps and agitators.
RBC SS Cartridge Seal
Built for larger pumps where shaft misalignment is an issue.
RBCD Double Cartridge Seal
Ideal for hazardous or sterile processes that need extra containment.
RBC Bearing Support Seal
Perfect for long shafts and mixers needing additional support.
RBCD Bearing Support Seal
A double cartridge version with built-in bearing support.
RBC Split Seal
Allows quicker installation on equipment that is difficult to strip down.
With seal faces manufactured from a wide range of materials including carbon, tungsten carbide and silicon carbide and housing options in stainless steel, super duplex, Hastelloy and more we really can get the right setup for you.
ATEX-Rated Seals and Seal Support Systems
If your site includes hazardous or explosive areas, we can supply fully ATEX-certified mechanical seals built to meet safety standards for explosive atmospheres. Our ATEX-rated seals are designed and manufactured in-house to suit your process and certified for use in ATEX Zones.
We also provide seal support systems to help extend seal life and maintain performance. Whether you need a simple quench pot or a complete barrier fluid system, we will recommend and build a setup that works for your equipment.
If you are working in safety-critical environments, we will make sure your seal setup is up to the job.
RB Diamond – Longer Lasting Performance
RB Diamond is our premium diamond coating for mechanical seal faces. If your equipment faces dry running, abrasive fluids or high speeds, this ultra-hard layer can give your seals a serious performance edge.
By reducing friction, wear and heat, RB Diamond helps your seals last longer, even in tough conditions or when lubrication is poor.
Benefits for your Equipment:
Up to five times longer service life
Better heat and wear resistance
Lower risk of galling and damage
Keeps working under dry or difficult conditions
You can have RB Diamond applied to new seals or added as an upgrade when we repair your existing ones.
Seal Repairs That Work for You
A seal failure can bring your process to a stop. That is why we offer a fast, practical repair service for most mechanical seals, even if we did not originally supply them.
If your seal can be repaired, we will refurbish it properly using the right materials and restore it to working condition. You could save up to 50% compared to buying a replacement, and we will always be honest about whether repair is the right choice.
From basic overhauls to full rebuilds or a redesign to solve recurring issues, we will help you get your equipment back up and running quickly.
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Designed and Made in the UK – With You in Mind
Every seal you get from us is designed and built in-house at our UK facility. We do not rely on outsourced production or third-party assembly, which means faster lead times and full control over quality.
You can also work with us to create a custom-designed mechanical seal. If you are dealing with harsh media, unusual operating conditions or repeated seal failures, we will design a solution that fixes the root cause and keeps your system running.
No two systems are the same, and your seal setup shouldn’t be either.
