Who we are
Founded in 1917, John Crane is one of the world’s leading providers of engineered technology. With more than 5,000 employees across 200 global sites, we supply and service the products used by our customers in process industries for their mission-critical operations—many of which involve extremely challenging conditions.
Our outstanding reputation for designing and engineering high-quality, durable, customized solutions is globally recognized. We partner with our customers and help them meet the latest environmental standards and keep their operations safe and controlled.
Headquartered in Chicago, Illinois, we are part of Smiths Group plc. For more than 170 years, Smiths Group has been pioneering progress by improving the world through smarter engineering. Smiths serves millions of people every year to help create a safer, more efficient and better connected world across four major global markets―energy, general industry, security and defense and aerospace. Listed on the London Stock Exchange, Smiths has more than 22,000 employees in over 50 countries. For more information, visit www.smiths.com.
John Crane is a global leader in the design, manufacture and engineering of mission critical flow control solutions for increased efficiency, emission reductions and energy transformation
John Crane is a global leader in rotating equipment solutions, supplying engineered technologies and services to process industries, including:
What We Do
We partner with our customers around the world to deliver innovative solutions that improve process and equipment reliability through a relentless focus on quality, a passion for service, and an uncompromising commitment to our people, safety, the environment and ethical business practices.
The scope of our mechanical seal product range far exceeds any other seal manufacturer. From small elastomer bellows seals used in millions of domestic water pumps to double mechanical seals that ensure maximum sealing safety and large, highly customized dry-running gas seals for mission critical high speed turbo compressors, John Crane has the right product for any application.
Seal Support Systems
The right seal support system is critical for promoting seal reliability. John Crane customizes support systems to meet a variety of seal specifications, contributing to safe, cost-effective, reliable operation and reducing harmful environmental effects. Our support systems comply with constantly changing design codes and standards, and meet the increasingly stringent demands on end users.
Seal Face Technologies
Our comprehensive suite of seal face technologies are designed to overcome rigorous sealing challenges, including limited seal face lubrication and severe-service duties that adversely affect reliability, operational costs and seal life. Designed by our engineering experts, John Crane’s face treatment options help your equipment power through low-lubricity and dry-running conditions by using advanced micromachined patterns and features to improve seal face lubrication to optimize the performance of rotating equipment in all process industries
Power Transmission Couplings
John Crane’s flexible couplings have provided a rugged and reliable service to the industry for over 50 years, helping rotating equipment operate at optimum levels and providing maximum availability. As a result, John Crane couplings have become the first choice of many of the world’s leading companies. John Crane’s policy of constant innovation and product development ensures that we continue to satisfy the changing demands of the market while fully complying with all relevant industry standards.
Isomag’s advanced magnetic face technology delivers unparalleled performance. The lapped flat faces create a positive liquid tight seal preventing lubricant leakage and the ingress of contaminants in both static and dynamic conditions on horizontal and vertical equipment alike. By optimizing the magnetic energy loading, Isomag’s are capable of running at shaft speeds well above average (up to 15,000 feet per minute) providing the ability to effectively seal the bearing housings on a wide variety of applications
John Crane offers a comprehensive range of filtration products to significantly reduce contamination, increasing the efficiency of your operation. Our products are designed to work together in complex systems to ensure optimum filter performance. Patented filtration technologies provide filter elements that are able to remove liquids in addition to solids within a single unit. Our replacement elements incorporate John Crane's patented design features, ensuring maximum filter performance
Often your very method of production will introduce contamination to your process, whether from imperfect ingredients, necessary reagents or process equipment, and to deliver an end product free from impurity and contamination, inhibiting, filtering action is required. Filtration is typically an imperfect process - some fluid remains on the feed side of the filter and fluid and particulates become embedded in the filter media.
Do you want to minimize leakage from your pumps in an effective manner? This is a challenge operators and maintenance managers face on a daily basis, which can prove costly. John Crane offers a wide selection of packing materials in compression packing, automatic packing, floating packing, and injectable packing. Learn more about our variety of packing equipped to handle the vast majority of sealing solutions and available for nearly all applications.
Maintenance and Repair Services
John Crane Maintenance and Repair Services assist with critical systems checks and plant equipment maintenance, as well as engineered component repair, removal and reinstallation services.
Mechanical Seals Reliability Programs
Results-driven and individually tailored, John Crane Mechanical Seals Reliability Programs define performance targets, assess reliability, analyze root cause failures and recommend improvement strategies.
Eight strategically located turbomachinery service centers and 300+ engineers worldwide allow us to respond quickly to failure investigation and technical issues — anytime, anywhere.
Asset Management Solutions
The John Crane Asset Management Solutions team deliver services to improve maintenance processes and increase asset efficiency, using data to create the processes needed to reduce maintenance costs and ensure compliance to crucial safety standards.
Gas Seal Management Program
John Crane's Gas Seal Management Program improves critical equipment reliability by ensuring proper storage, handling and delivery of mission critical engineered components.