This cover is used primarily in storage tanks in the beverage industry. It seals from the inside, however its oval shape also allows it to be removed from the tank. When a pivoting mechanism is attached, the cover can also be pivoted to the outside without removing it completely from the tank. The standard version of this seal sits loose on the cover, however the seal can also be vulcanized on.
Versions:
Version with welding ring
Version with welding neck
Version with pressed neck (no PED approval possible for this version)
Standard design
Wetted material:1.4571or 1.4404 Attachment parts from 1.4301
Stainless steel toggle with brass insert
Naturalrubber gasket (dark red)
Surface: unpolished, pickled
Options
Wetted materials: 1.4435, 1.4539, 1.4462
Various gasket qualities
Various surface qualities {glass-bead blasted,pickled or polished up to Ra < 0,4 µm)
Neck length up to 120 mm, neck thickness up to 6 mm
With swivel-feature
With various limit- or proximity-switches
Neck shaped to match tank-diameter

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  3.1_Manhole_Cover_340x440[280].pdf
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