Drain cover used in municipal roads, garden facilities, residential areas, schools, stadiums and other different place
drain cover grating is applied on walkway, carriageway, courtyard, factory sewage treatment, power plant, car washing stationg, bridge gully grating,Mass transportation, subways, playground, industrial areas, parks and high ways
etc; used as cover for drainage trench, wire ditch, subway, and air pit, hot-dip-galvanizing finish is used as antiseptic. Grating trench cover is composed of fixed frame & movable grating. It can be classified to Type T, U and M according to structures.
The usage of outdoor trench grating - drain cover grating
As a cover in a variety of passer-by, driveway, yard and construction for water leakage, Trenching, underpass subway, light well, inspection well and etc
Trench Covers are widely used in Mass transportation, subways, playground, industrial areas, parks and high ways...etc
Trench Covers are ideal for sub-stations, waste-water treatment plants, and chemical facilibility
Material standard- drain cover grating
Bearing bar | Q235A or stainless steel |
Cross bar | Q235A or 304 stainless steel |
Steel grating standards - drain cover grating
Country | Steel grating standars | steel standard | Hot dipped galvazising standard |
China | YB/T4001.1-2007 | GB700-88 | GB/T13912-2002 |
U.S.A | NASI/NAAMM(MBG531-88) | ASTM(A36) | ASTM(A123) |
U.K | BS4592-1987 | BS4360(43A) | BS729 |
Australia | AS1657-1992 | AS3679 | AS1650 |
Example for specification- drain cover grating
Item No | Bearing bar pitch | Cross bar pitch | specification os bearing bar(width*thickness) | |||||
20*3 | 25*3 | 32*3 | 40*3 | 20*5 | 25*5 | |||
1 | 30 | 100 | G203/30/100 | G253/30/100 | G323/30/100 | G403/30/100 | G205/30/100 | G255/30/100 |
50 | G203/30/50 | G253/30/50 | G323/30/50 | G403/30/50 | G205/30/50 | G255/30/50 | ||
2 | 40 | 100 | G203/40/100 | G253/40/100 | G323/40/100 | G403/40/100 | G205/40/100 | G255/40/100 |
50 | G203/40/50 | G253/40/50 | G323/40/50 | G403/40/50 | G205/40/50 | G255/40/50 | ||
3 | 60 | 50 | G203/60/50 | G253/60/50 | G323/60/50 | G403/60/50 | G205/60/50 | G255/60/50 |
Delivery terms--- drain cover grating
Package | Safety package or naked |
Delivery | Within 15-20 days after receiving the deposit |
Payment terms | EXW: 100% T/T. FOB: T/T, 30% deposit, 70% balance payment before shipping. CIF: T/T, 30% deposit, 70% balance payment at the sight of copy of B/L. |
HS code | 7308900000 |
Price validity | Within 7 days |
A drainage that is constructed across a road is called a ‘Transverse Trench’. Relation between car and the grating of the trench cover: The car passes through parallel with the bearing bars.
we also can manufacturer double-open ,single open and other trench grate covers according to customers' drawing and chart.
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