The unique properties of GRAPHALLOY bearings and wear rings enable pumps to run dry and survive upsets and flashing that cause metal bearings to fail.
Read more...
GRAPHALLOY Bushings and Bearings
Showing posts with label run dry. Show all posts
Showing posts with label run dry. Show all posts
Wednesday, March 15, 2017
Desalination Plant Pumps Upgraded with GRAPHALLOY NSF® Certified Bearings
A major pump manufacturer’s Water Systems Group, which focuses on the
commercial and industrial water markets, won a contract to provide
vertical turbine pumps for a desalination facility at a publicly-owned
water agency.
The pumps would experience dry starts with the possibility of
prolonged dry running. In addition, the bearings needed to be NSF
certified. These conditions led the pump company to replace their
standard bronze bearings with GRAPHALLOY NSF certified bearings.
The unique properties of GRAPHALLOY bearings and wear rings enable pumps to run dry and survive upsets and flashing that cause metal bearings to fail.
Read more...
The unique properties of GRAPHALLOY bearings and wear rings enable pumps to run dry and survive upsets and flashing that cause metal bearings to fail.
Read more...
Tuesday, September 9, 2014
Solution For Off-Shore Platform Firewater Pumps
GRAPHALLOY® nickel-grade bearings have been successfully used in offshore firewater pumps for many years. The non-galling, self-lubricating features of GRAPHALLOY allow pumps to continue working even when they encounter a run dry situation.
This particular firewater pump is installed on a Conoco offshore gas platform in the southern North Sea. The platform is an integral part of the LOGGS pipeline system that delivers gas through a 36" pipeline to a processing terminal on the east coast of England. This platform and pipeline system have been in operation since 1988.
The OEM-specified bushings were simple cut-to-size PTFE/Glass Tape Bearings like those normally found in hydraulic cylinders. High vibration and noise were identified as operational issues. In addition, the compounded PTFE material had little or no dry running capability. This was considered a health and safety issue because the pump was for emergency firefighting service and had to start when needed.
The repair facility had successfully performed several GRAPHALLOY upgrades to firewater pumps for other customers and thus proposed a similar upgrade to Conoco. This upgrade would provide the dry running capability that these pumps lacked.
The engineers at Graphite Metallizing worked closely with the repair facility’s engineering team to define pump modifications required and specify nickel-grade, GM 111.3, GRAPHALLOY bushings.
The upgrade to GRAPHALLOY GM 111.3 bushings was successfully completed. Conoco alsocompleted all required approval tests on the pump successfully. Conoco personnel observed and recorded that the use of GRAPHALLOY significantly reduced noise and vibration levels.
Conoco is now assured that they have an emergency firewater pumping system that has rundry capability and is Health and Safety Executive (HSE) certified
To learn more about GRAPHALLOY, click here.
This particular firewater pump is installed on a Conoco offshore gas platform in the southern North Sea. The platform is an integral part of the LOGGS pipeline system that delivers gas through a 36" pipeline to a processing terminal on the east coast of England. This platform and pipeline system have been in operation since 1988.
The OEM-specified bushings were simple cut-to-size PTFE/Glass Tape Bearings like those normally found in hydraulic cylinders. High vibration and noise were identified as operational issues. In addition, the compounded PTFE material had little or no dry running capability. This was considered a health and safety issue because the pump was for emergency firefighting service and had to start when needed.
The repair facility had successfully performed several GRAPHALLOY upgrades to firewater pumps for other customers and thus proposed a similar upgrade to Conoco. This upgrade would provide the dry running capability that these pumps lacked.
The engineers at Graphite Metallizing worked closely with the repair facility’s engineering team to define pump modifications required and specify nickel-grade, GM 111.3, GRAPHALLOY bushings.
The upgrade to GRAPHALLOY GM 111.3 bushings was successfully completed. Conoco alsocompleted all required approval tests on the pump successfully. Conoco personnel observed and recorded that the use of GRAPHALLOY significantly reduced noise and vibration levels.
Conoco is now assured that they have an emergency firewater pumping system that has rundry capability and is Health and Safety Executive (HSE) certified
To learn more about GRAPHALLOY, click here.
Subscribe to:
Posts (Atom)