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NOROCKING D400 - CLASS D400

NOROCKING D400 - CLASS D400

Product catalog summary
Specifications:
The document details the specifications of D400 manhole covers made from ductile iron EN-GJS-500-7, compliant with EN 1563:2018 and EN 124:2015 standards. These covers have a load-bearing capacity of over 400 kN (40 tons) and are classified under load class D400.

Frame:
The frame is a single casting with a height of 100 mm, ensuring stability through an EPDM corner seal that reduces vibration and noise. The external structure optimizes cement mortar sealing and anchoring device insertion.

Covers:
The square-shaped covers ensure stability with deep insertion and EPDM gasket support. They feature an elastic bar for automatic opening and closing, operable with construction tools. The surface includes blind holes for lifting handles and is designed to be antiskid, allowing water runoff to prevent ice formation.

Accessories:
Includes a lifting key (06) for handling the covers.

Installation and Certification:
The document specifies the installation location and certification details, ensuring compliance with relevant standards.
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Catalog excerpts

NOROCKING D400 - CLASS D400-1

NOROCKING D400 Particolari aggancio elastico/ Details elastic system Chiave di sollevamento 06/ Lifting Key 06 Chiusino di ispezione in ghisa sferoidale EN-GJS-500-7 a norme EN 1563:2018, con resistenza a rottura superiore a 400 kN (40 t) conforme alla classe di carico D400 prevista dalla norma EN 124:2015 Realizzato in un’unica fusione con un altezza di 100 mm assicura la stabilita con un accoppiamento mediante interposizione di guarnizione angolare in EPDM negli angoli tale da garantire lo smorzamento delle vibrazione e l’assenza di rumori durante l’uso. All’esterno presenta una struttura per ottimizzare la tenuta della malta cementizia e l’inserimento di dispositivi di ancoraggio. Di forma quadrata garantisce la stabilita grazie alla profondita di incastro e all’appoggio su guarnizioni in EPDM. Il sistema di chiusura e realizzato tramite una barra elastica compresa nel coperchio che crea un sistema automatico di apertura e chiusura che puo essere effettuato con arnesi da cantiere. Sulla superficie vi sono 2 o 4 fori cechi per l’inserimento di idonee maniglie di sollevamento. I coperchi sono intercambiabili, Vi e inoltre un grip antisdrucciolo con una conformazione tale da consentire il completo deflusso delle acque di scorrimento per evitare la formazione di ghiaccio. Inspection manhole cover in ductile iron EN- GJS-500-7 conforming to norm EN 1563:2018 with load bearing capacity over 400 kN (40 tons), conforming to the load class D400 as set out by norm EN 124:2015 It is realized in a single casting with a height of 100 mm, it ensures stability through a coupling system, obtained by interposing an EPDM corner seal in the corners of the frame, in order to ensure the reduction of vibration and the absence of noise during use. Externally, its structure helps to optimize the seal of the cement mortar and the insertion of anchoring devices. It comes square in shape, it guarantees stability thanks to its depth of insertion and to the support of EPDM gaskets. The closing system is realized through an elastic bar included in the cover, which creates an automatic opening and closing system, this can be performed with building clays. On the surface it presents two or four blind holes for the insertion of suitable lifting handles. The covers are interchangeable, the upper surface is designed to be antiskid, to allow the complete flow of runoff water and avoid the creation of ice.

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