{"id":211,"date":"2014-11-13T09:41:16","date_gmt":"2014-11-13T01:41:16","guid":{"rendered":"http:\/\/syifoundry.com\/?page_id=211"},"modified":"2017-06-12T18:06:43","modified_gmt":"2017-06-12T10:06:43","slug":"manhole-covers","status":"publish","type":"page","link":"https:\/\/syifoundry.com\/en\/products-2\/manhole-covers\/","title":{"rendered":"Manhole Covers"},"content":{"rendered":"

\"manhole-cover01\"<\/p>\n\n\n\n\n
\n
\u00a0SYI Manhole Cover Series (EN 124) –\u00a0Maximum load allowed for various classes<\/span><\/h6>\n<\/td>\n<\/tr>\n
\n
<\/h6>\n

– \u00a0GROUP 1: (class A 15 minimum) Test 1.5 metric ton<\/strong>
\nAreas which can only be use by pedestrians and pedal cyclists.<\/span><\/p>\n


\n– \u00a0GROUP 2: (class B 125 minimum) Test 12.5 metric ton<\/strong>
\nFootways, pedestrian areas and comparable areas, car parks or car parking decks.<\/span><\/p>\n


\n– \u00a0GROUP 3: (class C 250 minimum) Test 25 metric ton<\/strong>
\nFor gully tops installed in the area kerbside channels of roads which when measured from the kerb edge, extend a maximum of 0.5m into the carriageway and a maximum\u00a0of 0.2m into the footway.<\/span><\/p>\n


\n– \u00a0GROUP 4: (class D 400 minimum) Test 40 metric ton<\/strong>
\nCarriageway of roads (including pedestrian street), hard shoulders and parking areas,\u00a0for all types of road vehicles.<\/span><\/p>\n


\n– \u00a0GROUP 5: (class E 600 minimum) Test 40 metric ton<\/strong>
\nAreas imposing particularly high wheel loads, e.g. docks, aircraft pavements.<\/span><\/p>\n


\n– \u00a0GROUP 6: (class F 900 minimum) Test 90 metric ton<\/strong>
\nAreas imposing particularly high wheel loads, e.g. Aircraft pavements.<\/span><\/p>\n\n\n\n
The standard specifies that the designer is responsible for making the appropriate choice of class and where there is any doubt regarding the class to be used, a higher class should be selected.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/h6>\n

\"manhole-cover03\"<\/h3>\n

Material \u2014 Ductile iron and Grey iron:<\/strong><\/span><\/p>\n

– Microstructures of the two types:\u00a0<\/span><\/p>\n

\"manhole-cover04\"<\/p>\n

– The difference between ductile iron and traditional grey iron:<\/span> The addition of magnesium at the molten stage transforms the flakes of graphite which\u00a0are common with the grey iron casting process and transform them into spheroidal or
\nnodular form. The nodular structure provides a higher tensile strength as well as a higher\u00a0\u201cstrength to weight\u201dratio when compared with the properties inherent with grey iron\u00a0manufacture.<\/span><\/span><\/p>\n

– The benefit of ductile iron:<\/span> Ductile iron high strength to weight ratio allows for the production of light weight castings that offer what can amount to a 50% weight saving over traditional grey iron.<\/span><\/span><\/p>\n

 <\/p>\n

Most of the standard sizes are available.<\/span><\/strong>
\nAsk SYI Sales Representatives for more details at\u00a0info@syifoundry.com<\/a><\/span><\/p>","protected":false},"excerpt":{"rendered":"

\u00a0SYI Manhole Cover Series (EN 124) –\u00a0Maximum load allowed for various classes – \u00a0GROUP 1: (class A 15 minimum) Test 1.5 metric ton Areas which can only be use by pedestrians and pedal cyclists. – \u00a0GROUP 2: (class B 125…
Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":856,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-211","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/syifoundry.com\/en\/wp-json\/wp\/v2\/pages\/211","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/syifoundry.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/syifoundry.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/syifoundry.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/syifoundry.com\/en\/wp-json\/wp\/v2\/comments?post=211"}],"version-history":[{"count":15,"href":"https:\/\/syifoundry.com\/en\/wp-json\/wp\/v2\/pages\/211\/revisions"}],"predecessor-version":[{"id":1258,"href":"https:\/\/syifoundry.com\/en\/wp-json\/wp\/v2\/pages\/211\/revisions\/1258"}],"up":[{"embeddable":true,"href":"https:\/\/syifoundry.com\/en\/wp-json\/wp\/v2\/pages\/856"}],"wp:attachment":[{"href":"https:\/\/syifoundry.com\/en\/wp-json\/wp\/v2\/media?parent=211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}