technology and solutions

PRE_023 BWB

we are the ISO 28781 subsurface barrier valve specialists

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ISO 28781 subsurface barrier valves:

ISO 28781:2010 subsurface barrier valve types

isolation from above

isolation from below

isolation from above & below
completion installation

type A

type B

type C
post –  production/injection

type AA

type BB

type CC

functionality: post barrier valves are inclusive of pre barrier valves

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