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Mechanical seals are critical components used to prevent leakage between a rotating shaft and stationary parts in equipment such as pumps, compressors, and agitators. By creating a secure seal, they play a vital role in industries such as Oil and Gas, Chemical Processing, Clean Water Management, and Pharmaceuticals, where reliability, efficiency, and environmental protection are paramount.
The scope of our mechanical seal product range far exceeds any other manufacturer. From elastomer bellows seals in domestic water pumps to A/C seals in air-conditioning units, John Crane has the right product for any application. For mission-critical equipment, such as high-speed turbo compressors with double-acting mechanical seals, we provide highly customised dry-running gas seals that deliver exceptional performance and safety.
Our world-class rotating equipment technologies, paired with an unmatched breadth of applied engineering expertise, meet virtually all international standards, including API 682 and API 692. This helps plants reduce maintenance costs, reduce downtime and improve reliability. When it comes to keeping your rotational equipment running 24/7, John Crane’s comprehensive range of mechanical seals and systems has you covered.
We provide a wide range of mechanical seals for mission-critical applications, addressing the unique challenges faced by various industries. Whether it's achieving API 682 compliance for Oil and Gas, utilising gas seal technology on our innovative pump gas seals to eliminate fugitive emissions, managing slurries in Mining and Mineral processing, or overcoming maintenance challenges for large pumps and rotating equipment, we have a solution.
Dry gas seals have been the industry standard for turbomachinery since the early 1980s. John Crane's mechanical gas seals, separation seals and support systems — including monitoring, control, and conditioning solutions — form the core of any reliable sealing solution.
These products are constantly evolving to meet the needs of our customers. Backed by unrivaled global service capabilities, our portfolio provides expertise in repairing, retrofitting, gas seal storage and reliability, all while meeting API 692 standards to deliver comprehensive support throughout the product lifecycle.
In industries like Chemical, Pharmaceuticals, Pulp and Paper, and Food and Beverage, safeguarding operations, ensuring compliance with industry standards, preventing contamination, and maximising efficiency are top priorities. Our range of vessel and agitator seals can help you achieve reliable, cost-effective and compliant operations that enhance both productivity and safety, whatever your operations take you.
Our range of mechanical seals, packing products, and bearing isolators combines advanced, proven technologies with extensive industry expertise to deliver innovative design concepts and exceptional manufacturing quality. These solutions, rigorously tried and tested, are tailored for virtually any application, offering robust performance, faster installation, and reduced maintenance costs.
Our comprehensive range of engineered pressure reservoirs, gas seal control panels, heat exchangers and abrasive separators can be combined to produce an optimised seal support system for any application. This allows you to create an ideal operating environment to ensure exceptional seal performance and reliability.
Engineered to overcome rigorous challenges, our comprehensive suite of seal face technologies goes beyond competitors to eliminate the issue of limited seal face lubrication, which adversely affects reliability, cost and durability. Our engineers designed our micro-machined patterns and features to extend rotating equipment lifespans, optimise performance and improve lubrication. With a tailored approach to your needs, we deliver the right seal face technology for the right application.
Maximise your operational efficiency with John Crane's expert training programmes, designed to equip your team with the skills and knowledge required to excel with mechanical seal technologies and maintenance. Our courses are overseen by instructors with over 60 years of experience and can be tailored to meet your specific needs. They are available both online and in-person, offering a range of options including basic and advanced levels, with certification provided upon completion.
Choose from specialised courses and modules focused on:
You can also leverage our Reliability Programs and John Crane Sense digital tools to monitor performance, predict your maintenance needs, and minimise downtime. These programs are tailored to enhance both cost and operational effectiveness, ensuring your team is fully prepared to optimise performance.
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