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Boller GmbH & Co. KG
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  5. Model DF2 - Fittings and Expansion ...

Model DF2 -Fittings and Expansion Pieces

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Design: for installing and removing valves with little clearance without length compensation with continuous threaded rods, flange connection on both sides. Smooth flanges similar to DIN 2576 red. Blade thickness (alternatively full blade thickness). drilled according to PN 10/16*. Weld neck flanges DIN 2632-35. Flanges according to EN 1092-1:2001 (D) according to Type 01, 02, 11.

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Welded connections:
according to DIN EN ISO 5817 C, welding processes are qualified according to DIN EN 288-3 / DIN EN ISO 15614-1 Welders are qualified according to DIN EN 287-1

Approvals/certificates:
Approved manufacturer according to AD2000 leaflet HP0, certification according to DIN EN ISO 3834-3

Material:
steel, stainless steel, duplex

Surface:
Steel: Resicoat (EKB), Rilsan, galvanized, ...
Stainless steel: dip pickled and passivated, glass bead blasted, ...

Seal:
made of age-resistant Perbunan
or optionally profile seal made of EPDM (for drinking water) with KTW approval