Heavy Duty Galvanised Trench Grate , Vehicular Grating,Drain Grate Cover
Description:
Drain cover is usually used in the side of the road and swage treatment plant, it is for water drainage.Trench Drain Cover Gratings are steel lattice panels formed with simple lines, secured with hinged lid and connection. Ideal replacement drainage covers for conventional cast iron materials. Suitable for light type and large span heavy loading environment. Widely used in sewage treatment system in urban roads, squares, gardens, docks, airports, parking lots, roads, railways, industrial engineering and other types of industrial buildings.
Trench cover is another usage of steel grating, it's usually used in drainage system, like sewage treatment plant, port drainage channels, and plaza drainage system. As our products are mostly hot dip galvanzied, it can resist corrision and rust. Moreover, we can produce different size of steel grating for customers according to different load capacity requirement, shape request, etc.
We produce three kinds of steel gratings, they are Plain Style Steel Grating, Serrated Style Steel Grating
and I Bar Type Steel Grating.
We can design and manufacture standard steel grating and in customized shapes per client's
requirements.
They are widely used in steel structure platforms, stair treads, sidewalks,drainages and well covers etc.
Feature:
1. Anti-corrosive, resisting to acid and alkali
2. Light weight, great load-bearing capacity, on-slip and safe, easy installation
3. Being economical of materials, being sturdy and durable, ventilation
4. Easy to clean and attractive appearance.
Materials & Finishes
We design and manufacture many kinds of steel gratings, they are Plain Style Steel Grating, Serrated Style Steel Grating, I Bar Type Steel Grating and other gratings. They are widely used in steel structure platforms, stair treads, sidewalks, drainages and well covers etc. We also supply standard steel grating and in customized shapes per client's requirements.
1) Bearing Bar (Load Bar) Specifications (mm):
The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 10;
2) Bearing Bar Pitch (center to center):
12.5, 15, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according to client's requirement but 30, 40, 60mm are recommended.
America standard is available <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4) and so on.>
3) Cross Bar Pitch (center to center):
38, 50, 76, 100, 101.6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available.
4) Material:
Mild Steel (Low Carbon Steel ASTM A36 or Q235) , Stainless Steel 304 or 316
5) Surface Treatment:
Untreated, Painting or Hot dip Galvanizing
6) Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS.
Common specifications:
| Steel Grating Standard | Steel Standard | Galvanized Standard |
| China standard | YB/T 4001.1-2007 | GB/T 13912-2002 |
| USA standard | ANSI/NAAMM(MBG531) | ASTM(A123) |
| U.K.standard | BS4592 | BS729 |
| Australia standard | AS1657 | AS1650
|
Application
1. Widely used in shipbuilding, harbor, oceanographic engineering, building, paper mills, cement plant, medicine, spinning and weaving.
2. Is applied in food stuff factory, transportation, municipal administration, parking lot , etc.
3. Also used by various plants such as electric power, petroleum,chemical industry.
Standard size trench cover details
| NO. | Bearing
bar pitch | Cross bar pitch | Specification of bearing bar load( 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 | - | G253/60/50 | G253/60/50 | G403/60/50 | G205/60/50 | G255/60/50 |
| NO. | Bearing
bar pitch | Cross bar pitch | Specification of bearing bar load( width × thickness ) |
| 32×5 | 40×5 | 45×5 | 50×5 | 55×5 | 60×5 |
| 1 | 30 | 100 | G325/30/100 | G405/30/100 | G455/30/100 | G505/30/100 | G555/30/100 | G605/30/100 |
| 50 | G325/30/50 | G405/30/50 | G455/30/50 | G505/30/50 | G555/30/50 | G605/30/50 |
| 2 | 40 | 100 | G325/40/100 | G405/40/100 | G455/40/100 | G505/40/100 | G555/40/100 | G605/40/100 |
| 50 | G325/40/50 | G405/40/50 | G455/40/50 | G505/40/50 | G555/40/50 | G605/40/50 |
| 3 | 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G505/60/50 | G555/60/50 | G605/60/50 |
Type of saddle clips
| | Proper grating specifications |
| A-20 | B-20 | C-20 | Bearing bars at 20mm pitch |
| A-25 | B-25 | C-25 | Bearing bars at 25mm pitch |
| A-30 | B-30 | C-30 | Bearing bars at 30mm pitch |
| A-40 | B-40 | C-40 | Bearing bars at 40mm pitch |
| A-60 | B-60 | C-60 | Bearing bars at 60mm pitch
|
Process flow
(1) materian
(2) pressure welding
(3) cutting
(4) welding of ends bar
(5) surface treatment
(6) final shipment
We provide regular size perhaps you think not suitable, it doesn't matter! Please put your actual measurement size tell us, we can produce according to your needs and requirements for the size . If you want to know the price of our products, please do not hesitated to call us or email to us.
Tolerance of grating steel
The allowed deviation of length is +0/-5mm, while the allowed deviation of width is +/-5 mm.
The non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar.
Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not
surpass the end surfaces of two sides of grating 2mm.
Product Picture
Product Tags:
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Vehicular Heavy Duty Steel Grate Drain Cover Silver Color I Bar Type Images
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