

Vulcan Seals
About us
Vulcan Seals is a world-leading manufacturer and supplier of Mechanical Seals, Chem-Ring® FEP / PFA Encapsulated ‘O’-rings, Packing, and Tefcan® Expanded PTFE Gasketing. We also design and manufacture non-standard mechanical seals for specific equipment applications, pump types and models.
Operating globally and servicing markets for over four decades, Vulcan Seals has built the expertise to help with our customers’ sealing applications and challenges. With over 200 staff across six production sites and global distribution centres, our guaranteed stock is available on over 100,000 product lines with same-day despatch.
Our primary vision: Embrace Excellence – Service, Quality, and Value. How do we achieve this?
· Service: Our committed staff and completely automated logistics systems in storage, order processing, and distribution provide exceptional service.
· Quality: Our facilities have been audited and certified to ISO 9001:2015 for the design, stock holding, distribution, manufacturing, and refurbishment of sealing products worldwide.
· Value: Over 40 years of technical experience, coupled with expertly designed products, where our expertise can assist our customers in choosing the optimum material combinations for their specific industry requirements.
Whether our customers require Mechanical Seals, Chem-Ring® FEP/PFA Encapsulated ‘O’-rings, Gland Packing, or Tefcan® Expanded PTFE Gasketing solutions, our product portfolio is expertly designed to meet and exceed reliability, compliance, and performance expectations.
Vulcan Seals has committed to the UK Government’s Net Zero Strategy: Build Back Greener – the strategy to decarbonise all sectors of the UK Economy and meet its net zero targets by 2050. Additionally, Vulcan Seals is officially Cyber Essentials certified.
Products

Mechanical Seals
Our extensive mechanical seal range is appropriate for all common industrial seal chambers, without any modification to the existing seal housings and gland plates and is available straight from stock. ✅ Conical Spring 'O'-Ring Mounted Mechanical Seals ✅ Elastomeric Bellows Mechanical Seals ✅ Parallel Spring Diaphragm Mechanical Seals ✅ Balanced Diaphragm Mechanical Seals ✅ Parallel Spring 'O'-Ring Mounted Mechanical Seals ✅ Multiple Spring Mechanical Seals ✅ Wave Spring Mechanical Seals ✅ Water Pump Mechanical Seals ✅ Stationary Types and Clamp Ring Seals

Chem-Ring® FEP/PFA Encapsulated Seals
Our encapsulated seals provide a high performance and low cost sealing solutions for a variety of chemically demanding applications or where regulatory compliance is particularly important. For instance, in the food industry FDA compliance andthe ability to with stand harsh cleaning chemicals is a necessity, something that standard elastomers often cannot support. The combination of elastomers and encapsulation choice enables our encapsulated seals to achieve a combination of temperature, chemical and cost performance unrivalled by pure elastomeric solutions. The seamless, uniform FEP/PFA encapsulation provides the Chem-Ring® near universal sealing capability. Supply contracts are available to provide exceptional pricing on high volume demands, with guaranteed stocking and in-time, same-day batch quantity despatch. Special supply agreements maximise your supply chain reliability and minimise supply cost.

OEM Replacement Range Mechanical Seals
Vulcan Seals offer a wide range of equipment specific mechanical seals intended to suit the seal chambers of waste water, dewatering and equipment pumps. The materials specified reflect the need for optimal resistance to abrasive medias as the equipment is frequently utilised to move water heavy with particulates. Additionally, we offer a comprehensive range of direct replacement seals to suit common and widely utilised pumps in the global food process, beverage and dairy industries. All seals are manufactured to our exacting standards, utilising the highest quality materials and can be retrofitted, as design replacements, to the original OEM pumps without modification. All mechanical seal types within the Food, Beverage and Dairy range are specifically designed to be compliant with FDA and European EC food industry regulations.

Pump Repair Mechanical Seal Kits
Vulcan Seals' Pump Repair Mechanical Seal Kits provide precision-engineered solutions to prevent fluid leakage, protect against environmental contamination, and extend the lifespan of your rotating equipment. Designed for compatibility with leading pump brands, our seal kits offer reliability, durability, and cost-efficiency in demanding industrial applications. Our mechanical seal kits are built with robust construction, ensuring long-lasting performance even in extreme conditions. Designed for convenience, they come pre-assembled, reducing installation time and minimising downtime. With multiple sizes and configurations available, these pump repair mechanical seal kits cater to a wide range of pump models, making them a versatile and cost-effective solution. Additionally, they also offer optimised cost-efficiency by reducing maintenance expenses and simplifying inventory management. By sourcing a complete kit instead of individual components, you achieve significant savings while ensuring seamless compatibility.

Cryo-Ring™ Seals
Vulcan Seals Cryo-Ring™ is the perfect low-cost 'O'-ring sealing solution for cryogenic applications, where low temperature demands are required. Liquid Oxygen or Hydrogen are ideal applications for a Cryo-Ring™ or Cryogenic seals due to it’s lower temperature operating limit of -250°C (-418°F) compared to an encapsulated Silicone core limited to -60°C (-75°F). With a 302 Stainless Steel spiral wound spring, encapsulated with either an FEP or PFA, a Cryo-Ring™ or Cryogenic seal is used within a wide variety of industries such as transportation, food, pharmaceutical and chemical.

Vulcanised 'O'-rings
Vulcanised 'O'-rings are specialised, custom-made ‘O’-rings for exclusive applications. They are crafted from the extruded cord, allowing the supply of any specified inside diameter, starting from 180mm. They provide a cost-effective and fast solution when a moulded 'O'-ring is unavailable. Vulcanised 'O'-rings are produced using a 45° scarf, joined through a vulcanising process providing a barely visible seamless join, which replicates the overall extruded core strength. Manufactured to order, on short lead times and available in various cross section sizes, material grades and hardness options.

Gland Packing
Vulcan Seals offer an extensive range of 30 different gland packings, designed and constructed to minimise maintenance costs. Our gland packings use the most advanced gland packing fibres, the highest quality braiding methods, and the best lubrication processes. Our gland packing products have a high degree of resilience and consistency of volume. Their superior lattice, square inter-braided construction needs less gland pressure to seal, resulting in reduced equipment wear, less gland maintenance and increased gland packing life.
Silicon Carbide
Renowned for its excellent material properties, Silicon Carbide is used in a vast variety of applications that require exceptional material hardness, strength and a low coefficient of friction, while being highly resistant to heat, abrasion and corrosion. Vulcan Seals has over 30 years’ expertise with quality and reliable products, available from our stock, guaranteeing to suit your specific requirements. Our manufacturing facilities have been audited and certified to ISO 9001.2015, and our distribution operations are examined. Silicon Carbide (SiC) has exceptional properties, including high hardness, high thermal conductivity, high chemical and thermal stability, a wide bandgap, excellent electrical properties, lightweight, and biocompatibility. These qualities make SiC a highly sought-after material in various industries, including abrasives, refractory materials, electronics, automotive and aerospace, coatings, and medical implants.
News

Eliminating Seal Failures in Slurry Applications with Vulcassette®
Vulcan Seals’ custom design provided a groundbreaking solution for a global manufacturer facing severe slurry substance challenges on positive displacement pumps.

Enhancing Mechanical Seal Reliability in a High-Pressure Marine Application
This case study underscores the importance of precision engineering in mechanical seal applications and showcases Vulcan Seals’ expertise in providing high-performance sealing solutions for challenging marine environments.

High-Performance Cryo-Ring™ Sealing for Freeze-Dried Allergy Vaccines
A pharmaceutical manufacturer faced critical sealing failures while producing freeze-dried allergy vaccines at –200°C. Traditional elastomers were becoming brittle and losing compression during long-duration static freezing.