Application of diamond to enhance choke valve life in erosive duties
Application of diamond to enhance choke valve life in erosive duties
As part of a LINK surface engineering project, a consortium of universities, hard materials suppliers, valve manufacturers and end users have investigated the incorporation of CVD diamond into choke valves to enhance valve life in erosive duties. Diamond was applied to regions of the valve trim and tested under full scale conditions in a high pressure valve loop test facility and compared with standard uncoated tungsten carbide trims. The valve trims were tested with a 60 bar pressure drop and a flow rate of 7.5 l s?1 using water–sand slurry containing 1% (w/w) solids with a mean diameter of 194 ?m. The results show that valve seats and plugs with a partial coverage of CVD diamond exhibit 50–60% greater resistance to damage caused by sand particle impingement. Moreover, it is felt that further improvements are attainable with subtle improvement of the design of the trim and coating processes to allow complete coating of critical components with complex design.
choke valves, diamond, erosion, surface engineering, tungsten carbide trim
1087-1094
Wheeler, D.W.
d276c145-56e0-48d0-ae37-a84dda92a947
Wood, R.J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Harrison, D.
fd368c13-f185-41de-a326-e507b4366535
Smith, E.
e0ca126d-776d-47b1-b482-d87dae0e4dd7
2006
Wheeler, D.W.
d276c145-56e0-48d0-ae37-a84dda92a947
Wood, R.J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Harrison, D.
fd368c13-f185-41de-a326-e507b4366535
Smith, E.
e0ca126d-776d-47b1-b482-d87dae0e4dd7
Wheeler, D.W., Wood, R.J.K., Harrison, D. and Smith, E.
(2006)
Application of diamond to enhance choke valve life in erosive duties.
Wear, 261 (10), .
(doi:10.1016/j.wear.2006.02.003).
Abstract
As part of a LINK surface engineering project, a consortium of universities, hard materials suppliers, valve manufacturers and end users have investigated the incorporation of CVD diamond into choke valves to enhance valve life in erosive duties. Diamond was applied to regions of the valve trim and tested under full scale conditions in a high pressure valve loop test facility and compared with standard uncoated tungsten carbide trims. The valve trims were tested with a 60 bar pressure drop and a flow rate of 7.5 l s?1 using water–sand slurry containing 1% (w/w) solids with a mean diameter of 194 ?m. The results show that valve seats and plugs with a partial coverage of CVD diamond exhibit 50–60% greater resistance to damage caused by sand particle impingement. Moreover, it is felt that further improvements are attainable with subtle improvement of the design of the trim and coating processes to allow complete coating of critical components with complex design.
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Published date: 2006
Keywords:
choke valves, diamond, erosion, surface engineering, tungsten carbide trim
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 43720
URI: http://eprints.soton.ac.uk/id/eprint/43720
ISSN: 0043-1648
PURE UUID: cdc8db55-e4d9-4c43-a285-c40d6bc06e72
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Date deposited: 26 Jan 2007
Last modified: 16 Mar 2024 02:46
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Author:
D.W. Wheeler
Author:
D. Harrison
Author:
E. Smith
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