6 Installation
Messko GmbH 2020 29BA4001150/10 EN MSENSE
®
DGA 2/3
9. Mount the closed ball valve on the transformer and align above the elon-
gated holes such that the locking lever is at the top. Use fastening materi-
als made of stainless steel A4 in the strength category -70.
Figure11: Mounting the closed ball valve
Flange Bolt Wrench size Nm
DN50 PN6 M12 A4-70 19/18 62
DN50 PN16 M16 A4-70 24 150
DN80 PN16 M16 A4-70 24 150
Grease the steel clamping ring regularly with Vaseline or the grease sup-
plied to protect this against corrosion, see also chapter Ensuring offshore
capability [►Section 6.4, Page 48].
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