After installing a John Crane Type 5620 USP seal, the wasted water problem was solved, saving the plant nearly 1.8 million gallons of water annually
Excessive water consumption, constant packing service, EPA concerns and facility structural heaving damage were among the reported issues
4%
The water waste was linked to packing used on a pump in the hydroxide and limestone slurry process, leaking onto the concrete floor and red clay soil
20%
A chemical processing plant wanted to reduce the amount of water it
used to process lithium hydroxide used in batteries
3%
only
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15%
only
of patients are aware
of clinical trial options3
1/4
investigative sites will under-enroll2
1/10
investigative sites will fail to enroll a single patient2
Case Study
John Crane Dynamic Lift
Up-stream Pumping (USP)
Seal Upgrade
Once skeptical of the Dynamic Lift USP
seal-face solution, plant engineers embraced the John Crane technology, saying they were impressed with the results.
APPROVAL
Excessive water consumption
and associated costs were immediately halted, allowing the plant to cut water usage by up to 1.8 million gallons annually
SAVINGS
After six years of uninterrupted operation, the John Crane Type 5620 USP seal performed flawlessly, eliminating constant attention from plant service personnel to service the pump packing
PERFORMANCE
Results
CONCLUSION
* If the products featured will be used in a potentially dangerous and/or hazardous process, your John Crane representative should be consulted prior to their selection and use. In the interest of continuous development, John Crane Companies reserve the right to alter designs and specifications without prior notice. It is dangerous to smoke while handling products made from PTFE. Old and new PTFE products must not be incinerated. ISO 9001 and ISO14001 Certified, details available on request. ©2019 John Crane Revised 4/19 www.johncrane.com
Plant engineers agreed to discard the existing pump packing and replace it with John Crane’s unique, engineered USP
non-contacting face and filtered water buffer fluid seal technology. Under the observation of John Crane engineers, the pump was reconditioned and a 2” John Crane Type 5620 USP seal standard double seal was installed. The seal incorporated a low-volume, high-pressure pump, propelling a small amount of buffer liquid along the path normally sealed by a mechanical seal face and into the higher-pressure product side. The spiral groove face pattern of the John Crane Dynamic Lift USP
seal greatly reduced seal and equipment wear, directing barrier fluid toward the outside diameter setting up a sealed gap and eliminating physical contact. The inboard seal faces were comprised of silicon carbide mating rings with the Dynamic Lift USP face pattern, enabling a clockwise pump rotation for the proper USP seal function.
Application
The company asked John Crane, one of its seal suppliers, for a solution to the inadequate packing problem on an open-vane, recirculating propeller pump. After careful review, John Crane determined that the lithium hydroxide process was losing nearly 1.8-million gallons annually. Due to the water leakage, the plant’s floor would heave approximately 1.25” annually at the site of the process. Some areas of the floor rose 6” higher than other spots, creating trip hazards and costly pump, piping and infrastructure adjustments. As a result of the thick and volatile nature of then slurry, traditional seals had not worked to correct the problem in the past.
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Customer Need
”
“
John Crane Dynamic Lift USP Seal Upgrade Saves Chemical Processing Plant Nearly 1.8 Million Gallons of Water Annually
Type 5620 USP
John Crane’s Dynamic Lift USP seal face technology was chosen to improve seal MTBR and water usage
Engineers at a large chemical manufacturing plant on the east coast of the United States were concerned about how much water it used to process lithium hydroxide
HIGHLIGHTS
Lithium Hydroxide
for Batteries
East Coast United States
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Lithium Processing Facility
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Chemical
Industry
At a glance
15%
3%
UNINTERRUPTED
OPERATION
4,500
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4,500
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John Crane Dynamic Lift USP
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4,500
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1 milion
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Vestibulum euismod, elit quis ornare gravida, dui diam fringilla arcu, a vulputate lectus diam eu est. Nullam ut eros vitae mauris dapibus tempus et id odio. Morbi ac consectetur augue, eu condimentum dolor. Praesent eleifend risus id est facilisis blandit. Curabitur eget enim in felis sollicitudin commodo bibendum eget tortor. Praesent et lorem ac metus fringilla tincidunt. Nunc eu rutrum velit, eu ultricies sapien. Quisque sagittis turpis non facilisis congue. Nunc sapien sem, interdum ut ipsum vitae, pharetra bibendum nunc. Maecenas eget facilisis risus, quis rhoncus leo. Vestibulum euismod, elit quis ornare gravida, dui diam fringilla arcu, a vulputate lectus diam eu est. Nullam ut eros vitae mauris dapibus tempus et id odio. Morbi ac consectetur augue.
Background
Solution
Fact one:
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Fact two:
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4,500
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4,500
Vestibulum euismod, elit quis ornare gravida, dui diam fringilla arcu, a vulputate lectus diam eu est. Nullam ut eros vitae mauris dapibus tempus et id odio. Morbi ac consectetur augue, eu condimentum dolor. Praesent eleifend risus id est facilisis blandit. Curabitur eget enim in felis sollicitudin commodo bibendum eget tortor. Praesent et lorem ac metus fringilla tincidunt. Nunc eu rutrum velit, eu ultricies sapien. Quisque sagittis turpis non facilisis congue. Nunc sapien sem, interdum ut ipsum vitae, pharetra bibendum nunc. Maecenas eget facilisis risus, quis rhoncus leo. Vestibulum euismod, elit quis ornare gravida, dui diam fringilla arcu, a vulputate lectus diam eu est. Nullam ut eros vitae mauris dapibus tempus et id odio. Morbi ac consectetur augue.
Background
END PRODUCT:
Inadequate packing on a water pump used in the process caused significant water loss, requiring constant adjustments by plant technicians
When the water/lithium hydroxide slurry seeped into the red clay under the plant, the reaction caused significant concrete floor heaves
The Environmental Protection Agency (EPA) required the plant to curtail the water and lithium hydroxide losses and adhere to regulations
The 24/7 chemical manufacturing plant needed a cost-effective solution to stop the leakage to reduce costs, stop damage to the floor and conform to EPA requirements
Six years after installation, the USP was still going strong, eliminating shutdowns from frequent packing repair and annual replacementg
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