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Help CenterLight Duty Gully Gratings in Mass Transportation, Subways, Playground, Industrial Areas, Parks and High Way Manufacturer ISO9001
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Specifications
1.light duty gully gratings HDG2.ISO9001:2000
3.Good drain of water quality
4.Hot dipped gaivanized
5.High intensity
light duty gully gratings HDG is applied on walkway, carriageway, courtyard 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 drain grate covers - light duty gully gratings HDG
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- steel manhole cover
Bearing bar |
Q235A or stainless steel |
Cross bar |
Q235A or 304 stainless steel |
Steel grating standards - light duty gully gratings HDG
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- light duty gully gratings HDG
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 |
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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