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For High Pressure
Rating Duties
- Simple,
low cost, in-line maintenance.
- Parts
interchangeability between body styles
- High-stability
plug guiding.
- Balanced
or Unbalanced designs (balanced is standard)
This range of valves has been
specially developed to meet the requirements of applications involving
pressure ratings in excess of ANSI Class 600. A key feature is the
versatility of design-material specifications, trims, flow characteristics,
seat/body port area ratios and all parts being interchangeable between
globe and angle styles in a given size and rating.
Since the essential working components may be removed whilst the valve
remains in the line, internal inspection, maintenance and parts
substitution are easily carried out. This is particularly important in
valves which are butt-welded into the pipeline.
Sizes, ratings, end connections,
flow coefficients and principal materials for the globe and angel body
versions available are tabulated on the following pages.
Valves in all sizes and pressure ranges are of flanged bonnet construction
with spiral wound gaskets of a material appropriate to the duty.
Plug
a) Balanced
Cages
b) equal percentage ‘Multi-flow’
c) linear ‘Multi-flow’
Bodies
d) BV 990 globe
e) BV 992 angle
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