| Sign In | Join Free | My benadorassociates.com |
|
| Categories | Grating Trench Cover |
|---|---|
| Brand Name: | TT |
| Model Number: | 01, |
| Certification: | ISO9001 |
| Place of Origin: | Hebei,China |
| MOQ: | 100pcs |
| Price: | negotiate |
| Payment Terms: | L/C, T/T, Western Union |
| Supply Ability: | 1500 tons/month |
| Delivery Time: | 5-8 days |
| Packaging Details: | as your requirements |
| Material: | fiberglass,Aluminum Alloy |
| Surface treatment: | painted,Powder Coating,untreated |
| Application: | Floor,Walkway,Industrial Platform,bridge,Trench Drains |
| Color: | Silver,available to any colors |
| Standard: | ISO9001,ASTM,USA,High Quality |
| Cross bar pitch: | 50,As customers' requirement or 40 |
| Thickness: | 3-10mm,3mm/5mm,6mm,3,5 |
| Width: | according to your size |
| Key words: | drain trench cover |
| Grating surface treatment: | Electro galvanizing,hot-dip galvanizing,spray paint,painting |
| Company Info. |
| Hebei Zhuote wire mesh products Co., LTD |
| Verified Supplier |
| View Contact Details |
| Product List |
Cast Iron Manhole Cover and Frame 600L x 600W x 44H - B125 Class
Manhole covers are made of cast iron. These covers need to be heavy so that when vehicles drive over them, they do not become dislodged. Manhole covers normally weigh 100+ pounds each.
Some have open pick holes which allow water to enter the manhole. Others have concealed pick holes which do not go all the way through the cover or lift handles such as drop handles or ring handles.
Manhole covers can be bolted to the frame for security reasons. Manhole covers can also have a gasket on the bottom of the cover and bolted to the frame which is normally considered watertight.
Cast Iron Double Triangular Manhole Cover and Frame
Features : Inverted vee seatings combine with three point suspension to
provide cover stability under load and to discourage abrasive
material from becoming trapped under the bearing points.
Functions : Designated to be used in Government roadway drainage projects
and maintenance projects.
Applications : For Storm Water (with circumscribed raised stubs on the cover)
For Foul Water (with rectangular raised stubs on the cover)
Test details of cast iron manhole covers and frames
| Type of manhole cover and frame | Grade | Test requirements | |||
| Diameter of test block(mm) | Test load (t) | ||||
| Double triangular manhole cover and frame | Medium duty | 100 | 5 | ||
| Double triangular manhole cover | Heavy duty | 300 | 30 | ||
| Frame | Heavy duty | 300 | 30 | ||
Manhole covers provide entry to an underground world of sewers, water mains, power/communication lines, conduits, etc.
Manhole covers are a form of art. They are normally lettered
‘Sanitary Sewer’ or ‘Storm Sewer’ but can basically be lettered
anything. Manhole covers have different patterns/designs on them
and even custom logos if a city desires. Look down next time you
are walking through a city and take note.



|