Manhole cover, weatherproof, round in shape, completely made of stainless steel.
Based on DIN 1239:2018-4, suitable for use in Ex zone 1.
The cover is made of 2 mm stainless steel plate, with a centrally raised profile, inner cross bracing for rigidity, self-retracting lock, stainless steel gas assisted spring damper, integrated arrestor which can only be undone by hand; robust, concealed hinges.
A connection for potential equalisation is provided.
The frame consists of a angle section with a circumferential insect-proof and totally weather-proof rubber seal (frost- proof and weather-resistant), with clips welded to the bottom side, designed for embedding in concrete or for internal bolted fixing.
Manhole cover and frame shielded arc-welded, acid- treated in a pickling bath and passivated.
Operating key included.
Version:
Material: 1.4307 (AISI 304 L)
Shaft Opening: Ø 1000 mm
Installation type: Combination frame (for dowelling - for embedding in concrete)
Features: With insulation and vapour hood DN150