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• in the same way, using lubricant* [
the warranty for the valve and tank. Indeed using lubricant there will cause the valve to be
over-torqued, which may lead to valve thread or tank thread damage even if the connection to
piping has been done following the above procedure.
*Note: Use of petroleum-based grease and mineral based lubricant is totally forbidden, not only
on the valve thread, since plastics used (especially Noryl) will highly suffer from contact with this
type of grease, leading into structural damage hence to potential failures.
Ref. MKT-IM-010 / F - 16.01.2023
Page 51] on the valve thread is not allowed and will void
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Installer manual Fleck 3150 NXT/NXT2 - Installation
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